JP4322184B2 - Parent-child AV device, parent device, child device, and child device storage device - Google Patents

Description

  The present invention supplies video, audio, or video / audio generated by a master unit such as video / audio of a received television broadcast or video / audio recorded on a recording medium to a slave unit. The present invention also relates to a parent-child AV device that is played back by a child device, and further to a parent device, a child device, and a child device storage device that constitute the parent-child AV device.

  A television receiver as an example of an AV (audio / visual) device that outputs video, audio, or video / audio is used to record broadcast video such as digital broadcasts or video recording such as a DVD (Digital Versatile [Video] Disk). As the image quality of the media improves, it becomes possible to maintain a clear display image quality even on a large screen, and in combination with the practical use of thin large display panels such as LCD (Liquid Crystal Display) and PDP (Plasma Display Panel), the display screen becomes larger. The equipment itself is getting larger. On the other hand, there is a tendency for television receivers to be smaller and more portable, such as mobile phone devices and PDAs (Personal Digital Assistants) having a television reception function.

  Also, in the case of an audio apparatus as another example of an AV apparatus, there is a tendency to increase in size due to the home theater like a surround system using a large number of speakers due to digitalization of media. On the other hand, music distributed via the Internet or wireless LAN tends to be compact and portable, such as storing and listening to music on a portable terminal such as a PDA.

  Thus, in the case of an AV device that outputs video, audio, or video / audio, the viewing mode tends to be diversified according to the usage style and the like.

JP-A-11-196345

  However, in the AV apparatus described above, a viewing mode corresponding to the usage style or the like (hereinafter, in this description, listening only by sound, visual recognition only by display, and text or data broadcasting other than video and audio signals, etc.) The following problems have arisen due to the diversification of the visual recognition of data display and the combination thereof, which is also collectively referred to as “viewing”. The problem will be described by taking a television receiver as an example.

  For example, when a user is watching a television broadcast or the like, it may be necessary to move from the room where the television receiver is placed to another room or the like even during the viewing. . Therefore, even in such a case, an image receiver provided with a separate receiver main body and a portable receiver (that is, a display device) so that the user can continue to watch the television broadcast at the destination. There is a separate television receiver. In this receiver-separated television receiver, the receiver main body is a transmitter capable of wirelessly transmitting the selected television broadcast video and audio, and the portable receiver is a transmitter of this receiver main body. A receiving unit for receiving a transmission signal from the unit. When moving, the user carries only a portable receiver at the destination, and receives a television broadcast video or audio transmission signal from the receiver of the receiver by the receiver of the receiver at the destination. Thus, by displaying and outputting the sound, the television broadcast that was viewed at the source can be continuously viewed.

  However, in such a receiver-separated television receiver, since the portable receiver must be taken into consideration by the user to carry to the destination, the size of the display unit (display screen) is large. Is limited due to the size and weight of the receiver.

  Therefore, when a user desires to watch a television broadcast whose image quality has been improved by, for example, digital broadcasting even on a large screen, for example, a stationary type or a wall-mounted type having a large display unit (large screen). Such a non-portable television receiver must be prepared and used separately.

  However, in this case, the television broadcast that the user was watching with the non-portable television receiver is the place where the non-portable television receiver is disposed (hereinafter referred to as the movement source for convenience of explanation). ) When viewing continuously with a portable television receiver at a different location (hereinafter referred to as a destination for convenience of explanation), the viewer is viewing with a portable television receiver at the destination. When viewing a television broadcast using a non-portable television receiver at the source, the user must perform an operation to continue viewing on either one of the television receivers when moving. There wasn't. That is, in these cases, as an operation for continuing viewing, the user performs operation stop of one television receiver that has been used for viewing until now, while receiving the other television used for viewing from now on. It was necessary to perform reception tuning of the machine.

  Furthermore, in the case of a monitor device that does not have a television broadcast receiving function, broadcast video of a CATV (Cable TV) broadcast, DVD, HDD (Hard Disk Drive), or VTR (Video Tape) supplied via a set top box. Recorder), used to display and output recorded video supplied from an external device such as a camera, broadcast or program video sent via the Internet or a wireless LAN. The same applies to this monitor device. Problems arise. For example, if you want to watch a broadcast video on a large screen, the monitor device must be non-portable due to its large size. If you want to continue watching with a portable monitor device at another destination, you must move the external device together with the portable monitor device to the destination. It takes more time than that.

  In this way, in the case of an AV apparatus as well as a television receiver, video that has been viewed up to that point as a user moves (the above-described character broadcast) due to the diversification of viewing modes according to the usage style and the like. Or the display of text data in data broadcasting or the like) or how to make it easy to continue watching audio without trouble.

  The present invention solves the above-described problems, improves the convenience of the user by eliminating the need for an operation for continuation of viewing, and provides video, such as monitor equipment, audio equipment, television receivers, etc. Portable AV devices such as the advantage of non-portable AV devices such as a large display unit (large screen) and the ability to carry them to a destination without having multiple kitchens that output audio or video / audio. It is an object of the present invention to provide a parent-child AV device, a parent device, a child device, and a child device storage device that share the advantages of the above and improve the economy.

In order to solve the above-described problems, a parent-child AV device according to the present invention is a parent-child AV device that supplies an information signal generated by a parent device to a child device and plays back the information signal. Includes: a generating unit that generates an information signal; a master unit output unit that outputs the information signal generated by the generating unit; and a transmission that transmits the information signal generated by the generating unit to a portable slave unit Means, attachment / detachment detection means for detecting attachment / detachment of the slave unit to a predetermined storage unit, and transmission of the information signal generated by the generation unit in correspondence with removal of the slave unit by the attachment / detachment detection unit Supply control means for controlling supply of the information signal to the slave unit via the transmission unit so as to start supply to the slave unit via the means and corresponding to attachment detection. The slave unit is A receiving means for receiving an information signal transmitted from the machine, a slave output means for outputting the information signal received by the receiving means, and the receiving means and Operation control means for controlling the output operation by the slave unit output means, and when the slave unit is removed from the storage unit during the output of the information signal by the master unit output unit, the master unit of the master unit The information signal output from the output means is output from the handset output means of the handset.

Further, the parent device of the parent-child AV device of the present invention is a parent device of a parent-child AV device that supplies an information signal to the child device and reproduces it by the child device, and a generating means for generating an information signal, A master unit output unit for outputting the information signal generated by the generation unit, a transmission unit for transmitting the information signal generated by the generation unit to the portable slave unit, and a predetermined storage of the slave unit An attachment / detachment detection means for detecting attachment / detachment to the unit, and an information signal generated by the generation means is started to be supplied to the slave device via the transmission means in correspondence with the removal of the slave device by the attachment / detachment detection means. And a supply control means for controlling the supply of the information signal to the slave unit via the transmission unit in response to attachment detection, the supply control unit comprising: Removed from storage Only in case, and supplying the information signal generated by the generation unit to the slave unit via said transmission means.

  The slave unit of the parent-child AV device of the present invention is a slave unit of the parent-child AV device that reproduces an information signal supplied from the parent device, and receives the information signal transmitted from the parent device. And a slave unit output unit that outputs the information signal received by the receiver unit, and controls the operations of the receiver unit and the slave unit output unit according to a predetermined attachment / detachment state with respect to the storage unit. An operation control means, wherein the operation control means puts the slave unit output means in an output stop state in the storage state with respect to the storage portion, and releases the stop state in a removal state from the storage portion, The receiving unit and the slave unit output unit are activated.

  The slave unit of the parent-child AV device of the present invention is a slave unit of the parent-child AV device that reproduces an information signal supplied from the parent device, and receives the information signal transmitted from the parent device. A slave unit output unit that outputs an information signal received by the receiver unit, an input unit that inputs an operation instruction for the master unit, and switches and sets a slave unit mode or a remote control mode, and the input According to the transmission means for transmitting the operation instruction input by the means to the base unit, the attachment / detachment state with respect to the predetermined storage unit and the mode state switched by the input means, Operation control means for controlling operation of a slave unit output means and transmission of an operation instruction to the master unit via the transmission means, and the operation control means is configured to receive the reception means when stored in the storage portion. as well as When the machine output unit is set in the output stopped state and the slave unit mode is set by the input unit, the stop state is released in the detached state from the storage unit, and the receiver unit and the slave unit output The means is activated.

  Further, the child device storage device of the parent-child AV device of the present invention is a child device storage device that detachably stores and holds the portable child device of the parent-child AV device, and detects attachment / detachment of the child device. Detection means, charging means for charging a rechargeable battery provided in the stored and held child device, an external signal input unit to which an information signal supplied from an external device is input, and an information signal from the external device First transmission means for transmitting to a parent device output device provided in the parent device, and second transmission for transmitting an information signal from the external device to a child device output device provided in the child device And an information signal supplied to the external signal input unit in response to detection of attachment / detachment of the slave unit by the attachment / detachment detection unit with respect to the master unit output device or the slave unit output device Supply control means for supplying, the supply control means, In the attachment detection state of the child device by the attachment / detachment detection means, an information signal from the external device is transmitted only to the parent device output device via the first transmission means, and the child by the attachment / detachment detection means. In the device removal detection state, the information signal from the external device is transmitted only to the slave device output device via the second transmission means.

  Further, the child device storage device of the parent-child AV device of the present invention is a child device storage device that detachably stores and holds the portable child device of the parent-child AV device, and detects attachment / detachment of the child device. Detection means, charging means for charging a rechargeable battery provided in the stored and held child device, an external signal input unit to which an information signal supplied from an external device is input, and an information signal from the external device First transmission means for transmitting to a parent device output device provided in the parent device, and second transmission for transmitting an information signal from the external device to a child device output device provided in the child device And an information signal supplied to the external signal input unit to the master unit output device or the slave unit output device in response to detection of attachment / detachment of the slave unit by the means and the attachment / detachment detection unit Supply control means, the supply control means In the attachment detection state of the slave unit by the attachment / detachment detection unit, an information signal from the external device is transmitted only to the master unit output device via the first transmission unit, and the slave unit is detected by the attachment / detachment detection unit. In the removal detection state, an information signal from the external device is also transmitted to the child device output device via the second transmission means in addition to the parent device output device.

  According to the parent-child AV device, the parent device, the child device, and the child device storage device of the present invention, the broadcast video or audio that was viewed by either the parent device or the child device, the recording supplied from the external device Even if the video or recorded audio, video or audio of a broadcast or program sent via the Internet or wireless LAN, etc. are continuously viewed on either the master or slave, Since the viewing can be automatically switched from one of the master unit and the slave unit to the other according to the attachment and detachment of the storage unit of the machine, it is not necessary to perform an operation for continuing viewing and thereby improve the convenience of the user. Improvements can be made.

  In addition, when viewing is switched from one of the parent device or the child device to the other, either the parent device or the child device that has been viewed until now outputs a display unit or sound for displaying images such as broadcast images. If the output means such as the audio output unit or the output device is deactivated, energy saving can be achieved, while either the parent device or the child device that has been viewed so far displays video such as broadcast video. If the output means or the output device such as the display unit and the audio output unit that outputs audio continues to operate, it is possible to view video, audio, or video / audio simultaneously on both the parent device and the child device.

  Furthermore, the master unit and the slave unit can share the tuning receiver of the television receiver, the CATV broadcast set-top box, external devices such as DVDs, HDDs, VTRs, cameras, etc., the Internet and wireless LAN connection devices, etc. In addition, since it is not necessary to move or change the connection of these devices themselves, the economy and the like are improved.

  An embodiment of a parent-child AV device, parent device, child device, and child device storage device of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a block diagram of a parent-child AV apparatus according to an embodiment of the present invention.

  A parent-child AV device 1 according to an embodiment of the present invention includes a parent device 100, a child device 200, and a cradle 300 as a child device storage device that detachably stores and holds the child device 200. Yes. The slave unit 200 is mounted and mounted on the cradle 300 when not in use, and can be carried by being removed from the cradle 300 by the user when in use. In FIG. 1, the cradle 300 is configured as a configuration that is configured separately from the main unit 100 and connected to the main unit 100, but is configured integrally with the main unit 100. The same housing as the parent device 100 may be used.

  FIG. 2 is a configuration diagram of an example of a parent device and a cradle in a parent-child television receiver as an example of a parent-child AV device according to an embodiment of the present invention.

  The base unit 100 of this embodiment includes a tuner 102, an external device signal input I / F (interface) 104, a signal switching unit 106, a signal processing unit 108, a wireless transmission / reception unit 110, a display unit 112, a speaker 114, a control unit 116, It has a remote control signal input I / F 118, a power supply control means 120, a backup power supply 121, a main power supply SW (switch) 122, and a remote control operator 124.

  The tuner 102 selects and receives a television broadcast channel designated by a channel selection instruction from the control means 116 from a television broadcast wave received via the antenna 103, and performs high-frequency broadcasting of the selected television broadcast channel. The signal is demodulated and a video / audio signal composed of a video signal is output as an information signal.

  The external device signal input I / F 104 is a radio frequency (RF) signal or video signal supplied from a video recording device (not shown) such as a VTR, DVD player (DVD player), CATV tuner, or the like. In response to an output instruction from the control means 116, the RF signal or video signal supplied from the video recording device is reproduced and a video / audio signal composed of the video signal is output as an information signal.

  The signal switching unit 106 outputs the video / audio signal (information signal) supplied from the tuner 102 or the external device signal input I / F 104 according to the channel selection instruction or the output instruction from the control unit 116, and the output supplied from the control unit 116. In response to the previous instruction, the signal is supplied and output to the signal processing unit 108 or the display unit 112 and the speaker 114.

  The signal processing unit 108 performs signal processing suitable for wireless communication on the video / audio signal supplied from the signal switching unit 106 by, for example, compressing the video signal by MPEG (Moving Picture Image Coding Experts Group) method. To generate transmission data of the video / audio signal and supply it to the wireless transmission / reception means 110.

  The display unit 112 includes a non-portable display (for example, a large-sized and large-screen display) that is difficult to carry by the user during movement, and is configured by an LCD or a PDP, and a drive circuit thereof. Then, as the master unit output unit, the video (including the display of text data) such as the television broadcast channel that has been selected and received is displayed.

  The speaker 114 serves as a master unit output unit together with the display unit 112, and outputs the sound of the selected television broadcast channel or the like.

  The wireless transmission / reception unit 110 transmits the transmission data of the video / audio signal supplied from the signal processing unit 108 and the transmission data of the status information of the base unit 100 managed by the control unit 116 to be described later, for example, IEEE802.11a, 802.11b. , 802.11g, Bluetooth (Bluetooth) or the like based on a predetermined short-range wireless communication standard, and wireless transmission output. Further, the wireless transmission / reception unit 110 receives transmission data of status information of the slave unit 200 transmitted from the slave unit 200 according to a predetermined short-range wireless communication standard, and supplies the transmission data to the control unit 116.

  The remote control signal input I / F 118 receives an instruction input and a setting input for the parent device 100 that are transmitted from the remote control operator 124 based on a user operation, and supplies them to the control means 116.

  The power control means 120 generates drive power for each part of the main unit 100 from commercial power and supplies it to the respective parts, and also supplies power to the attached backup power supply 121. Then, the power supply control unit 120 receives a television broadcast composed of the base unit output unit configured by the display unit 112 and the speaker 114, the signal processing unit 108, and the wireless transmission / reception unit 110 according to the supply control instruction from the control unit 116. In addition, it is possible to control the supply of the generated drive power to video and audio transmission means by an external device or the like. The main power supply SW 122 conducts and cuts off the electrical connection between the power supply control means 120 and the commercial power supply by its operation. The backup power supply 121 is necessary for the power supply control means 120 and the like after the main power supply SW 122 cuts off the electrical connection between the power supply control means 120 and the commercial power supply until the master unit 100 finishes the necessary processing. Supply power to the part.

  The remote controller 124 is an operation piece such as a remote control power source SW 126, a channel selection SW (channel key) 128, an input media selection SW 130, etc., and a remote control transmission unit (not shown) for transmitting an instruction / setting signal based on the operation of these operation pieces. (Omitted).

  The control means 116 is based on an instruction / setting signal input from the remote controller 124 via the remote control signal input I / F 118 and a slave unit attachment / detachment detection signal to be described later supplied from the cradle 300. Control operation.

  On the other hand, the cradle 300 as the slave unit storage device is configured as a separate unit from the base unit chassis in the present embodiment, and is provided in a signal connection to the base unit chassis. The cradle 300 includes a charging unit 340 for charging a rechargeable battery for supplying driving power to each unit of the child device 200 and an attachment / detachment detecting unit 342 for detecting attachment / detachment of the child device 200 to the cradle 300. I have. The cradle 300 is configured such that, when the child device 200 is attached, the charging unit 340 charges the rechargeable battery 250 provided in the child device 200.

  FIG. 3 is a configuration diagram of an example of the slave unit in the parent-child television receiver as an example of the parent-child AV device according to the embodiment of the present invention.

  The slave unit 200 of this embodiment includes a wireless transmission / reception unit 210, a signal processing unit 208, a display unit 212, a speaker 214, a control unit 216, a power control unit 220, a slave unit power switch (SW) 222, and a rechargeable battery 250.

  The wireless transmission / reception means 210 receives a video / audio signal transmitted from the parent device 100 in accordance with a predetermined short-range wireless communication standard and a transmission signal related to status information of the parent device, and performs signal processing on the received data of the video / audio signal. In addition to being supplied to the means 208, the reception data of the status information of the master unit 100 is supplied to the control means 216. Further, the wireless transmission / reception means 210 transmits the transmission data of the status information of the slave unit managed by the control means 216 according to a predetermined short-range wireless communication standard.

  The signal processing unit 208 performs signal processing on the received data of the video / audio signal supplied from the wireless transmission / reception unit 210, restores the video / audio signal, and supplies it to the display unit 212 and the speaker 214.

  The display unit 212 includes an LCD, a PDP, or the like, and includes a display (compact screen) that is smaller than the display unit 112 of the parent device 100 and a driving circuit thereof so that the user can easily carry it when moving. It is prepared for. The display unit 212 displays and outputs an image of a television broadcast channel or the like that has been selected and received by the master unit 100 as a slave unit output unit.

  The speaker 214 serves as a slave unit output unit together with the display unit 212, and outputs a sound of a television broadcast channel or the like that has been selected and received by the master unit 100 and transmitted.

  The power control means 220 generates and supplies drive power for each part of the slave unit from the rechargeable battery 250. In this embodiment, the power control means 220 is configured to stop the supply of drive power to each part of the child device 200 when the child device 200 is housed and held in the cradle 300 by the start of the holding. Yes. Further, the power supply control means 220 is configured to start supplying the drive power of each part of the slave unit generated from the rechargeable battery 250 to each part of the slave unit when the slave unit 200 is detached from the cradle 300. Further, the power supply control means 220 is configured to be able to stop or restart the supply of drive power to each part of the slave unit by an instruction from the control means 216 or an operation of the slave unit power supply SW 222 described below.

The slave unit power supply SW 222 is a state in which the slave unit 200 is removed from the cradle 300 and the drive power is supplied from the power control unit 220 to each unit of the slave unit by the power control unit 220. It is an operation piece operated when supply is stopped or restarted. The rechargeable battery 250 is charged by the charging means 340 provided in the cradle 300 in a state where the slave unit 200 is mounted on the cradle 300, and supplies driving power to each part of the slave unit. And the control means 210 controls the operation | movement of each part of the subunit | mobile_unit mentioned above.

  In addition, in the parent-child television receiver of the present embodiment, the control means 116 of the parent device 100 and the control means 216 of the child device 200 are configured to have a CPU, a memory, etc., respectively. The machine 200 is configured to be viewed and controlled by the respective control means 116 and 216 as shown in FIG. In the viewing control, the control means 116 and 216 of the master unit 100 and the slave unit 200 store the status storage area for storing and holding the operation status and the viewing information up to the previous time (for example, the selection of the television broadcast channel selected by the user for viewing). A viewing information storage area for storing and holding station information and the like. The state storage area and the viewing information storage area are configured in, for example, a memory (for example, a flash memory) that can be stored and retained even when the power is stopped.

  FIG. 4 is a state transition table of the parent device 100 and the child device 200 shown in FIGS. 2 and 3.

  The control means 116 of the parent device 100 and the control means 216 of the child device 200 in the parent-child television receiver of the present embodiment perform the following viewing control according to the state transition table shown in FIG.

  In FIG. 4, symbols A to I in the table indicate operating states (types of operating states) of the parent device 100 and the child device 200 stored in the state storage areas of the parent device 100 and the child device 200. . In FIG. 4, reference numerals S11 to S15 in the table indicate individual states of the master unit 100 and the slave unit 200 in each of the operation states A to I. Similarly, reference numerals S21 to S28 indicate parent units in the respective operation states A to I. The individual state monitored by the device 100 and the child device 200 is shown. And each column A-S11-I-S15 prescribed | regulated by the matrix of the operation | movement state AI in the table | surface and state item S11-S15 is the individual of the main | base station 100 or the subunit | mobile_unit 200 in the operation state A-I. Each column A-S21 to I-S28, which represents the contents of the state and is defined by the matrix of the operation states A to I and the state items S21 to S28, indicates the operation of the parent device 100 or the child device 200 in the operation states A to I. Indicates the transition destination of states A to I.

  Hereinafter, the transition of the operation states of the parent device 100 and the child device 200 will be described separately for each operation state A to I.

<Operating state G>
The operating state G indicates a state (G-S11) in which the main power supply SW 122 of the parent device 100 is turned off (column G-S11) and the child device 200 is attached to the cradle 300 (G-S12). This operation state G corresponds to a normal state (normal non-operation state) when the parent device 100 and the child device 200 are not used in the parent-child television receiver of this embodiment.

  In the operating state G, since the main power supply SW 122 is in the OFF (OFF) state in the operating state G, the electrical connection between the power control means 120 of the main unit 100 and the commercial power supply is cut off, and the power is turned off. (G-S11). Therefore, driving power is not supplied to each part of the base unit via the power control unit 120, and the display unit 112 constituting the base unit output unit is also in a non-display state (non-operating state) (G-S14). Moreover, since the subunit | mobile_unit 200 is also the attachment state to the cradle 300 (G-S12), it is a power-off state (G-S13). Therefore, driving power is not supplied from the rechargeable battery 250 to the respective units of the child device via the power supply control means 220, and the display unit 212 constituting the child device output unit is also in a non-display state (non-operating state) (G -S15).

  In this operating state G, base unit 100 is in a state waiting for an ON operation of main power supply SW 122 by the user (G-S23). Moreover, the subunit | mobile_unit 200 is removed from the cradle 300 by a user, and is in the waiting state (G-S21).

  In this operating state G, when the main power SW 122 of the master unit 100 is turned on by the user (G-S23), the power control unit 120 and the commercial power source are connected, and the master unit is connected via the power control unit 120. Driving power is supplied to the control means 116 of 100. When the control unit 116 confirms that the slave unit 200 is in the operation state G attached to the cradle 300 based on the detection signal from the attachment / detachment detection unit 342 by the supply of the driving power, the control unit 116 enters the state storage area. The operating state A is updated and stored in place of the stored operating state G, and processing corresponding to the operating state A is performed. In this case, the control unit 116 confirms that the slave unit 200 is not in the cradle 300 and is in the operating state G based on the detection signal from the attachment / detachment detection unit 342 by supplying the driving power. If this is not possible, as will be described later, when the main power supply SW122 is turned on in the operation state I (I-S23), or when the main power supply SW122 is turned on in the operation state H described later (H The operation state D of -S23) is updated and stored in the state storage area, and processing corresponding to the operation state C or D is performed.

  On the other hand, when the handset 200 is removed from the cradle 300 by the user in this operating state G (G-S21), the handset 200 of this embodiment is supplied with the rechargeable battery 250 supplied via the power control means 220. With the driving power from, each unit except the slave unit output unit including the display unit 212 and the speaker 214 is once in an operating state, and the slave unit power SW on information is transmitted and output via the wireless transmission / reception means 210. However, in this operating state G, the main power supply SW 122 of the parent device 100 is not turned on by the user, and the parent device 100 is in the power-off state. Therefore, handset 200 updates and stores an operating state I described later in the state storage area, and turns off the power that control means 216 has once turned on regardless of the user's turn-off operation of handset power supply SW222. In this case, the control unit 216 wirelessly transmits / receives the power-off state of the parent device 100 for a predetermined time or more in response to, for example, the transmission of the child device power SW-on information once in the operation state described above. This is determined by the fact that the transmission signal from the parent device 100 cannot be received via the means 210.

  In this operating state G, the state where the handset 200 is removed from the cradle 300 by the user (G-S21) is the same as the operating state I described later.

<Operating state A>
The operation state A shows a state in which the main power supply SW 122 of the parent device 100 is turned on (G-S23) while the child device 200 is attached to the cradle 300 (G-S11 to G-S15). . This operation state A corresponds to a normal viewing state using the parent device 100 by turning on the main power SW 122.

  In the operating state A, the master unit 100 is electrically connected between the power control unit 120 of the master unit 100 and the commercial power source by turning on the main power source SW 122 (A-S11). In response to the supply of drive power, the display unit 112 constituting the master unit output unit is in a display state (operation state) (A-S14).

  Further, since the slave unit 200 is attached to the cradle 300 (A-S12), each part of the slave unit is in an off / charged state in which power is not supplied via the power control means 220 (A-S12). S13), the display unit 212 constituting the slave unit output unit is in a non-display state (A-S15).

  In the base unit 100, as a process corresponding to such an operation state A, the control unit 116 performs the following process.

  In the master unit 100, the control means 116 issues a switching instruction to supply the channel / received television broadcast channel video / audio signal supplied from the tuner 102 to the display unit 112 and the speaker 114 as the master unit output unit. , And supplied to the signal switching means 106. Further, since the slave unit 200 is in the off / charged state in which the slave unit 200 is mounted on the cradle 300, the control unit 116 supplies the power control unit 120 with a drive power supply stop instruction to the signal processing unit 108 and the wireless transmission / reception unit 110. And de-activate them. Then, the control means 116 supplies a tuning instruction based on the tuning information stored in the viewing information storage area to the tuner 102.

  As a result, in the parent device 100, the tuner 102 receives the channel selection instruction when the user previously turned off the main power SW 122, and the tuner 102 receives the channel selection, and the video is displayed (operating state). ) Is displayed on the display unit 112.

  Thereby, in a state where the main unit SW 122 of the master unit 100 is turned on while the slave unit 200 is attached to the cradle 300 (G-S12), the user can display the display unit 112 of the master unit 100. You can watch the regular TV broadcast you used.

  Then, in this operating state A, the control means 116 of the master unit 100 determines whether the slave unit 200 has been removed from the cradle 300 by the user (A-S21), whether the main power supply SW 122 has been turned off (A-S25), remote control It is monitored whether the remote control power supply SW 126 of the operation device 124 is turned off (A-S26).

  At that time, the control unit 116 of the parent device 100 determines that the child device 200 has been removed from the cradle 300 (A-S21), and based on the input of the removal detection signal from the attachment / detachment detection detection unit 342 provided in the cradle 300. When detected, the operation state D is updated and stored in the state storage area instead of the operation state A, and processing corresponding to the operation state D described later is performed.

  Further, the control means 116 of the master unit 100 indicates that the main power SW 122 has been turned off (A-S25), shuts off the drive power to the control means 116 itself, for example, a power supply off signal from the power supply control means 220. When detected based on the supply or the like, the viewing information such as the channel selection information of the television broadcast channel that the user has watched until immediately before is updated and stored in the viewing information storage area. And the control means 116 returns to the operation state G mentioned above. The backup power supply 121 is used for the power supply from the turning-off operation of the main power supply SW 122 to this point. The operating state G is a state in which the driving power supply to the respective units of the parent device is not performed, and the display unit 112 constituting the parent device output unit is in a non-displaying state (non-operating state). Therefore, when the main power supply SW 122 is turned off in the operation state A, it means that the user has finished watching the normal television broadcast using the display unit 112 of the parent device 100.

  Further, the control means 116 of the base unit 100 detects that the remote control power SW of the remote control unit 124 has been turned off (A-S26) by the input of the remote control power off signal via the remote control signal input I / F 118. Then, the viewing information such as the channel selection information of the television broadcast channel that the user watched immediately before is updated and stored in the viewing information storage area. And the control means 116 updates and memorize | stores the operating state F instead of the operating state A in a state memory area, and performs the process corresponding to the below-mentioned operating state F. In this operating state A, when the remote control power SW of the remote controller 124 is turned off, the normal television broadcast viewing using the display unit 112 of the master unit 100 by the user is temporarily suspended. It represents.

  In addition, the subunit | mobile_unit 200 is removed from the cradle 300 similarly to having demonstrated the operation state G as a process corresponding to this operation state A, and is in a waiting state (G-S21).

<Operating state D>
The operation state D is a normal viewing state using the display unit 112 of the parent device 100 described in the operation state A (A-S11 to A-S15), and the state when the child device 200 is removed from the cradle 300. (A-S21). This operation state D corresponds to a state in which the television broadcast channel that was viewed on the display unit 112 of the parent device 100 is continuously viewed by the portable child device 200.

  In the operation state D, the control unit 116 of the parent device 100 that has detected that the child device 200 has been removed from the cradle 300 performs the following processing as processing corresponding to the operation state D.

  When the removal detection signal is supplied from the attachment / detachment detection detection means 342 when the slave unit 200 is removed from the cradle 300, the control means 116 stops the supply of drive power from the power supply control means 120 to the display unit 112 and the speaker 114. Then, the operation of the main unit output unit including the display unit 112 and the speaker 114 is stopped (D-S11, D-S14).

  On the other hand, the control means 116 starts supply of driving power to the signal processing means 108 and the wireless transmission / reception means 110 by the power supply control means 120, and puts the signal processing means 108 and the wireless transmission / reception means 110 into an operating state. Then, the control unit 116 outputs a switching instruction for supplying the video / audio signal of the selected television broadcast channel supplied from the tuner 102 to the signal processing unit 108 side.

  As a result, in the master unit 100, the video / audio signal of the television broadcast channel selected and received by the tuner 102 is transferred to the signal processing unit 108 side by the signal switching unit 106 instead of the display unit 112 and the speaker 114 side. Supplied. Thus, the video / audio signal of the television broadcast channel selected and received by the tuner 102 is subjected to signal processing by the signal processing means 108 and then transmitted and output from the wireless transmission / reception means 110. In the present embodiment, the state information (that is, the operating state D in this case) stored in the state storage area by the control means 116 from the wireless transmission / reception means 110 is also included in this video / audio signal. It is configured to be transmitted in addition to the transmission signal.

  On the other hand, in this operation state D, in the slave unit 200 removed from the cradle 300, as described above, the driving power from the rechargeable battery 250 supplied via the power control unit 220 causes the display unit 212 and the speaker 214 to operate. Each unit excluding the slave unit output unit is once activated, and transmits and outputs the slave unit power SW on information via the wireless transmission / reception means 210.

  In the case of this operation state D, unlike the individual state G-S21 of the operation state G described above, the wireless transmission / reception means 110 of the base unit 100 receives the above-described slave unit 200 from the cradle 300, Since the video / audio signal and the status information transmission signal of the selected television broadcast channel are transmitted and output, the slave unit 200 transmits the transmission signal from the master unit 100 within a predetermined time after the operation once. The data can be received via the wireless transmission / reception means 210. As a result, when the slave unit 200 receives the transmission signal from the master unit 100 within this predetermined time, the control means 216 continues supplying the drive power from the rechargeable battery 250 to each part of the slave unit including itself. In addition, supply of drive power to the slave unit output unit including the display unit 212 and the speaker 214 is started and the power is turned on (D-S13).

  Therefore, the transmission signal of the video / audio signal of the television broadcast channel transmitted from the master unit 100 is received by the wireless transmission / reception unit 210 of the slave unit 200, and is processed and restored to the video signal and the audio signal by the signal processing unit 208, It is supplied to the display unit 212 and the speaker 214. In addition, the status information (that is, the operating status D) of the master unit 100 transmitted in addition to the transmission signal of the video / audio signal at that time is also received by the slave unit 200. Then, the transmitted state information (operation state D) of the parent device 100 is updated and stored in the state storage area of the child device 200 by the control unit 216 of the child device 200.

  Thus, when the user is watching a desired television broadcast channel on the parent device 100 in a state where the portable child device 200 is stored and held in the cradle 300, the user removes the child device 200 from the cradle 300. Alone (D-S12), it is possible to continuously view the video of the television broadcast channel viewed on the parent device 100 on the display unit 212 of the child device 200 (D-S15).

  Furthermore, in the parent-child television receiver of the present embodiment, after the continuous viewing by the child device 200 is started, the parent device 100 stops the operation of only the parent device output unit including the display unit 112 and the speaker 114. Since the first standby state is set (D-S11, D-S14), energy saving of the parent device 100 is automatically performed.

  Further, in this operation state D, the control means 116 of the master unit 100 has the user turn on the remote control power source SW 126 of the remote control operator 124, whether the slave unit 200 is returned and attached to the cradle 300 (D-S 22). (D-S24), whether the main power supply SW122 is turned off (D-S25), or whether the slave unit power supply SW off information transmitted based on the off operation of the slave unit power supply SW222 by the user from the slave unit 200 is received (D-S28). Further, the control means 216 of the child device 200 monitors whether or not the child device power supply SW 222 has been turned off by the user by receiving the state information (operation state D) from the parent device 100 (D-S28).

  Then, the control means 116 of the base unit 100 confirms that the handset 200 has been returned and attached to the cradle 300 (D-S22), and inputs the attachment detection signal from the attachment / detachment detection detection means 342 provided in the cradle 300. If detected, the operating state A is updated and stored in the state storage area instead of the operating state D, and the processing corresponding to the operating state A described above is performed.

  This operation state A is a state in which the main power supply SW 122 of the parent device 100 is turned on and the child device 200 is mounted on the cradle 300 as described above. That is, it is a normal viewing state by base unit 100 when main power supply SW 122 is turned on.

  This is because, when the continuous viewing by the slave unit 200 regarding the television broadcast channel viewed by the master unit 100 is finished and the user returns the slave unit 200 to the cradle 300, the power of the slave unit 200 is turned off. This shows that normal television broadcast viewing using the display unit 112 of the parent device 100 is automatically resumed.

  Further, the control means 116 of the master unit 100 detects that the remote control power SW 126 of the remote control unit 124 is turned on (D-S24) by inputting a remote control power on signal via the remote control signal input I / F 118. Then, instead of the operating state D, the operating state B is updated and stored in the state storage area, and processing corresponding to the operating state B is performed.

  In addition, when the control unit 116 of the master unit 100 detects that the main power SW 122 is turned off (D-S25), for example, based on the cutoff of the drive power supply to the control unit 116 itself, the user has been watching until just before. Viewing information such as channel selection information of the television broadcast channel is updated and stored in the viewing information storage area. Then, the control unit 116 updates and stores the operation state H instead of the operation state D in the state storage area, and transmits the state information (that is, the operation state H) of the parent device 100 to the child device 200 via the wireless transmission / reception unit 110. After the transmission output, processing corresponding to the operating state H is performed. The backup power supply 121 is used for the power supply from the turning-off operation of the main power supply SW 122 to this point.

  Thereby, in the slave unit 200 that receives the transmission signal of the video / audio signal of the television broadcast channel transmitted from the master unit 100, the status information (operation state H) from the master unit 100 is transmitted to the wireless transmission / reception means 210. Will be received via. Then, the control means 216 of the child device 200 that has received the state information (operation state H) of the parent device 100 stores the operation state H in the state storage area and the power of the parent device 100 has been cut off or the parent device. An error message indicating that the transmission signal from 100 has not arrived is displayed on the display unit 212 or uttered from the audio output unit 214 and output. In addition, the control unit 216 of the child device 200 performs processing corresponding to the operating state H. Therefore, even when the power of the parent device 100 is turned off while watching the television broadcast using the display unit of the child device 200, the user grasps the state on the child device 200 side. be able to.

  In addition, when the control unit 116 of the master unit 100 receives the slave unit power SW OFF information transmitted based on the OFF operation of the slave unit power SW 222 by the user from the slave unit 200 by the wireless transmission / reception unit 110 (D-S28). The viewing information such as the channel selection information of the television broadcast channel that the user has watched until immediately before is updated and stored in the viewing information storage area, and the operation state E is updated and stored in the state storage area instead of the operation state D. Processing corresponding to state E is performed.

  Therefore, when the control unit 216 of the slave unit 200 detects that the slave unit power supply SW 222 is turned off based on, for example, the interruption of the drive power supply to the control unit 216 itself, the control unit 216 operates in the state storage area instead of the operation state D. The state E is updated and stored, and the slave unit power SW off information is transmitted from the wireless transmission / reception means 210. After the processing up to this point is completed, the slave unit 200 enters a standby state of the slave unit in which each part of the slave unit other than the control unit 216 is stopped. In the standby state of the slave unit, the control unit 216 enters a so-called sleep mode with low power consumption, and waits for an ON operation of the slave unit power supply SW222.

  Therefore, if the user performs an off operation of the slave unit power supply SW 222 of the slave unit 200 during the continuous viewing of the television broadcast using the slave unit 200, the user continuously pauses the continuous viewing with the cradle 300 removed. be able to.

<Operating state F>
The operating state F is a viewing state using the display unit 112 of the base unit 100 described in the operating state A (A-S11 to A-S15), and is a state when the remote control power source SW 126 of the remote controller 124 is turned off. (A-S26) is shown. This operating state F corresponds to a state in which the viewing of the television broadcast channel viewed on the display unit 112 of the parent device 100 is interrupted.

  In operating state F, base unit 100 in the power-on state (A-S11) indicates that remote control power supply SW 126 of remote controller 124 has been turned off (A-S26) via remote control signal input I / F 118. The control means 116 performs the following processing as processing corresponding to the operating state F.

  When the power supply off signal is supplied from the remote controller 124, the control unit 116 of the master unit 100 receives the respective units other than the control unit 116 and the remote control signal input I / F 118, that is, the tuner 102, the signal switching unit 106, and the signal processing. The power supply from the power control means 110 to the means 108, the wireless transmission / reception means 110, the display unit 112, and the speaker 114 is stopped, and the operation is stopped (F-S11). Thereby, in the base unit 100, the video and audio output from the base unit output unit including the display unit 206 and the speaker 208 is stopped (F-S14), and each unit of the base unit other than the control unit 116 and the remote control signal input I / F 118 Is in a so-called normal remote control off state (third standby state). At that time, the signal processing means 108 and the wireless transmission / reception means 110 are also stopped. Note that the charging unit 340 and the attachment / detachment detection unit 342 provided in the cradle 300 are not in an operation stopped state in this embodiment.

  In this operating state F, when the user re-operates the remote control power supply SW 126 of the remote control operator 124 (F-S24), the control means 116 receives the power-on signal from the remote control operator 124 via the remote control signal input I / F 118. Receive. As a result, the control means 116 updates and stores the operating state A instead of the operating state F in the state storage area, and performs processing corresponding to the operating state A described above. Therefore, in master device 100, viewing of the television broadcast channel that was viewed on display unit 112 when display unit 112 was turned off by remote control power supply SW 126 of remote control unit 124 is resumed.

  Further, in this operating state F, when the main power supply SW 122 is turned off by the user (F-S25), the electrical connection between the power control means 120 of the master unit 100 and the commercial power supply is cut off, and the control means 116 and the remote control signal input I / F 118 are also deactivated. At this time, when the control means 116 detects that the main power SW 122 is turned off (F-S25), for example, based on the interruption of the drive power supply to the control means 116 itself, the control means 116 operates in place of the operation state F in the state storage area. The state G is updated and stored, and the operation state G described above is returned. The backup power supply 121 is used for the power supply from the turning-off operation of the main power supply SW 122 to this point.

  Further, in this operating state F, when the handset 200 attached to the cradle 300 is (F-S12) and removed by the user (F-S21), the handset 200 is connected via the power control means 220. With the electric power supplied from the rechargeable battery 250, each unit except the slave unit output unit including the display unit 206 and the speaker 208 is temporarily activated. However, in this case, since only the signal processing unit 108 and the wireless transmission / reception unit 110 of the master unit 100 have stopped operating, the slave unit 200 has removed the slave unit 200 from the cradle 300 in the operation state G described above. It becomes the same as the state. Therefore, in this case, the control unit 216 of the child device 200 updates and stores the operation state E in the state storage area, and the child device 200 itself turns off the child device 200 regardless of the child device power supply SW222 (F− S21).

  On the other hand, in the base unit 100, unlike the operation state G described above, the control means 116 is in the operation state, so that the slave unit 200 is removed from the cradle 300 (F-S21). It is possible to detect based on the input of the removal detection signal from the attached detection / detection means 342. Thereby, the control means 116 updates and stores the operating state E instead of the operating state F in the state storage area, and performs processing corresponding to the operating state E described later.

<Operating state E>
The operation state E is provided in the child device 200 in a state in which the child device 200 continues to watch the television broadcast channel that has been viewed on the parent device 100 described in the operation state D (D-S11 to D-S15). Shows the state (D-S28) when viewing is stopped by turning off the slave power supply SW222. In the operating state E, the user temporarily turns off the remote control power SW 126 of the remote controller 124 by temporarily turning off the television broadcast channel viewed on the display unit 112 of the master unit 100 described in the operating state F. In this state (F-S11 to F-S15), the state (F-S21) when the slave unit 200 is removed from the cradle 300 is shown. In this operation state E, although the master unit 100 is in a state in which the main power supply SW 122 is turned on, any of the master unit 100 or the slave unit 200 that has been detached from the cradle 300 is currently watching a television broadcast. Corresponds to the state where is not performed.

  In the operating state E, the control unit 116 of the parent device 100 performs the following processing as processing corresponding to the operating state E.

  The control unit 116 of the base unit 100 is a power source for each unit other than itself, the remote control signal input I / F 118 and the wireless transmission / reception unit 110, that is, the tuner 102, the signal switching unit 106, the signal processing unit 108, the display unit 112, and the speaker 114. The supply of drive power from the control means 110 is stopped, and these are stopped (E-S11). As a result, parent device 100 enters a second standby state in which only the communication function between remote controller 124 and child device 200 is operable. Note that the second standby state is different from the above-described remote control off state (third standby state) in that the wireless transmission / reception means 110 is not stopped.

  Thereby, the display part 112 of the main | base station 100 is a non-display state (E-S14). Moreover, since the subunit | mobile_unit 200 removed from the cradle 300 is also in an OFF state as demonstrated by D-S28 of the operation state D, or F-S21 of the operation state F (E-S12, E-S13) The display unit 212 is also in a non-display state (E-S15).

  In this operation state E, the control means 116 of the master unit 100 determines whether the user has returned and mounted the slave unit 200 to the cradle 300 (E-S22) or whether the remote control power source SW 126 of the remote control operator 124 has been turned on ( E-S24), whether the main power supply SW122 is turned off (E-S25), or whether the slave unit power supply SW on information transmitted from the slave unit 200 based on the on operation of the slave unit power supply SW222 by the user is received (E-S24) S27) is monitored.

  In addition, the slave unit 200 is waiting to be attached to the cradle 300 (E-S22), and is waiting for an ON operation of the slave unit power supply SW222 (E-S27). In addition, when the child device power SW 222 is turned on, the child device 200 is driven by the driving power from the rechargeable battery 250 supplied via the power control means 220 as described above, and the display unit 212 and the speaker 214. Each unit except the slave unit output unit consisting of is once activated, and transmits and outputs the slave unit power SW on information via the wireless transmission / reception means 210.

  In this operating state E, the control means 116 of the parent device 100 indicates that the child device 200 is attached to the cradle 300 (E-S22), and receives the attachment detection signal from the attachment / detachment detection detection means 342 provided in the cradle 300. When detected based on the input, the operating state F is updated and stored in the state storage area instead of the operating state E, and the processing corresponding to the operating state F described above is performed. That is, when the handset 200 is attached to the cradle 300, the control unit 116 of the base unit 100 stops the operation of the wireless transmission / reception unit 110 and the television broadcast channel that is being viewed on the display unit 112 of the base unit 100. Is in a normal remote-control-off state (third standby state) in which viewing is interrupted by the slave power supply SW 222 of the remote-control device 124.

  When the control unit 116 of the master unit 100 detects that the remote control power supply SW 126 of the remote control operation unit 124 is turned on (E-S24) by the power on signal via the remote control signal input I / F 118, Instead of the operating state E, the operating state C is updated and stored in the storage area, and processing corresponding to the operating state C is performed.

  In addition, when the control unit 116 of the base unit 100 detects that the main power SW 122 is turned off (E-S25) based on, for example, the interruption of the drive power supply to the control unit 116 itself, the user has been watching the latest. Viewing information such as channel selection information of the television broadcast channel is updated and stored in the viewing information storage area, the operating state I is updated and stored in the state storage area instead of the operating state E, and processing corresponding to the operating state I is performed. The backup power supply 121 is used for the power supply from the turning-off operation of the main power supply SW 122 to this point.

  In addition, the control unit 116 of the base unit 100 has received the slave unit power SW ON information transmitted from the slave unit 200 based on the ON operation of the slave unit power SW 222 by the user (E-S27). Is input via the tuner 102, the signal switching means 106, and the signal processing means 108 are operated to change the second standby state to the first standby state described above and stored in the viewing information storage area. A tuning instruction based on the selected tuning information is supplied to the tuner 102. And the control means 116 updates and memorize | stores the operation state D instead of the operation state E in a state memory area, and performs the process corresponding to the above-mentioned operation state D. That is, in the operating state D in which the slave unit 200 is watching a television broadcast, even if the slave unit power SW 222 of the slave unit 200 is turned off to stop viewing, the slave unit power source SW 222 of the slave unit 200 is interrupted. By turning on (E-S27), viewing by the slave unit 200 can be resumed.

<Operating state I>
In the operating state I, the main power supply SW 122 of the parent device 100 is turned off (I-S11), the child device 200 is removed from the cradle 300 (I-S12), and the child device 200 is also turned off. (I-S13).

  In the operating state I, since the main power supply SW122 is in the OFF state in the main unit 100, the electrical connection between the power control unit 120 of the main unit 100 and the commercial power source is cut off (I -S11). Therefore, driving power is not supplied to each part of the base unit via the power control unit 120, and the display unit 112 constituting the base unit output unit is also in a non-display state (non-operating state) (I-S14). In addition, the slave unit 200 is also in a power-off state (I-S13) even though it is removed from the cradle 300 (I-S12). Therefore, the driving power is not supplied from the rechargeable battery 250 to the respective units of the slave unit via the power control means 220, and the display unit 212 constituting the slave unit output unit is also not displayed (I-S15).

  In this operating state I, base unit 100 is in a state waiting for an ON operation of main power supply SW 122 by the user (I-S23). In addition, the slave unit 200 is in a state of waiting for the user to attach to the cradle 300 (I-S22) or waiting for an on operation of the slave unit power SW 222 by the user (G-S27).

  In this operating state I, when the main power SW 122 of the master unit 100 is turned on by the user (I-S23), the power control unit 120 and the commercial power source are connected, and the master unit is connected via the power control unit 120. Driving power is supplied to the control means 116 of 100. The control unit 116 of the master unit 100 confirms that the slave unit 200 is not attached to the cradle 300 based on the detection signal from the attachment / detachment detection unit 342 by the supply of the driving power, and is further removed. After confirming that the handset 200 is in the OFF state, the operating state C is updated and stored in place of the operating state I stored in the state storage area, and processing corresponding to the operating state C is performed. In this case, the control unit 116 transmits a power-off state of the slave unit 200 to the slave unit 200 via, for example, the wireless transmission / reception unit 110, and transmits a state information transmission instruction to the slave unit 200 for a predetermined time. Even if the time has elapsed, it is determined that the status information from the slave 200 cannot be received via the wireless transmission / reception means 110. By this confirmation, the control unit 116 of the parent device 100 stores the child device 200 in the state storage area when the child device 200 is not attached to the cradle 300 and the removed child device 200 is in the ON state. Instead of the stored operating state I, the operating state D when the main power supply SW 122 is turned on in the operating state H (H-S23) is updated and stored, and processing corresponding to the operating state D is performed.

  In this operation state I, when the handset 200 is attached to the cradle 300 (I-S22), the operation state G returns to the above-described operation state G.

  In this operation state I, when the user turns on the child device power supply SW 222 of the child device 200 and the child device 200 enters the operation state (I-S27), the child device 200 is connected via the power control means 220. With the drive power supplied from the rechargeable battery 250, each unit except the slave unit output unit including the display unit 212 and the speaker 214 is activated, and the slave unit power SW on information is transmitted via the wireless transmission / reception means 210. Output. However, in this operating state I, the main power supply SW 122 of the parent device 100 is not turned on by the user and the parent device 100 is in the power-off state. Therefore, the control means 216 of the child device 200 controls the power supply of the parent device 100. An error message indicating that it is not included is displayed on the display unit 212 or generated from the audio output unit 214 and output. Then, the control means 216 updates and stores the operating state H in the state storage area instead of the operating state I. In this case, the control means 216 sets the main power supply off state of the base unit 100 for a predetermined time, for example, in response to the temporary operation state and the transmission of the slave unit power supply SW on information described above. As described above, the determination is made based on the fact that the transmission signal from the parent device 100 cannot be received via the wireless transmission / reception means 210. Further, unlike the case shown in the G-S21 column of the operation state G, the control unit 216 does not turn off the power of the control unit 216 unless the user turns off the child device power SW 222, and the child device 200 is in the operation state. It is left.

<Operating state H>
The operating state H is a state in which the main power SW 122 of the parent device 100 is turned off (H-S11), the child device 200 is not attached to the cradle 300 (H-S12), and the child device 200 is turned on. Indicates a power-on state (operating state) (H-S13).

  In the operating state H, since the main power supply SW122 is in an OFF state in the operating state H, the electrical connection between the power supply control means 120 of the parent device 100 and the commercial power supply is cut off (H -S11). Therefore, driving power is not supplied to each part of the base unit via the power control unit 120, and the display unit 112 constituting the base unit output unit is also in a non-display state (non-operating state) (H-S14). On the other hand, the subunit | mobile_unit 200 is in the power-on state (H-S13) in the state removed from the cradle 300 (H-S12). Accordingly, driving power is supplied from the rechargeable battery 250 to the respective units of the slave unit via the power control means 220, and the display unit 212 constituting the slave unit output unit is also operated. No transmission signal is transmitted and output, so there is no display (H-S15).

  In this operating state H, base unit 100 is in a state of waiting for an ON operation of main power supply SW 122 by the user (H-S23). In addition, the slave unit 200 is in a state of waiting for attachment to the cradle 300 by the user (H-S22) or in a state of waiting for the user to turn off the slave unit power SW 222 (H-S27).

  When the main power SW 122 of the parent device 100 is turned on by the user in this operating state H (H-S23), the power control means 120 and the commercial power supply are connected and driven to the control means 116 of the parent device 100. Power is supplied. The control unit 116 of the master unit 100 confirms that the slave unit 200 is not attached to the cradle 300 based on the detection signal from the attachment / detachment detection unit 342 by supplying the driving power, and is further removed. After confirming that the handset 200 is in the ON state, the operating state D is updated and stored in place of the operating state H stored in the state storage area, and processing corresponding to the operating state D is performed. In this case, the control unit 116 transmits a power-on state of the slave unit 200 to the slave unit 200 via, for example, the wireless transmission / reception unit 110, and transmits a state information transmission instruction to the slave unit 200 for a predetermined time. The status information is determined by receiving the status information (that is, the operating status H) from the slave unit 200 via the wireless transmission / reception means 110. By this confirmation, the control unit 116 of the parent device 100 causes the state information (operating state) from the child device 200 when the child device 200 is not attached to the cradle 300 and the removed child device 200 is in the off state. If H) cannot be received, the operating state C when the main power supply SW 122 is turned on in the operating state I (I-S23) is updated and stored in place of the operating state H stored in the state storage area. Processing corresponding to the operating state C is performed.

  In addition, when the slave unit 200 is mounted on the cradle 300 in this operating state H (H-S22), the slave unit 200 is connected to the power source and returns to the above-described operating state G. In this case, the handset 200 is turned off by being attached to the cradle 300.

  In this operating state H, when the user turns off the handset power supply SW 222 of the handset 200 and the handset 200 becomes inactive (H-S28), the control means 216 of the handset 200 When an off operation of the machine power SW 222 is detected based on, for example, the interruption of the drive power to the control means 216 itself, the operating state I is updated and stored in the state storage area instead of the operating state H. After the processing up to this point is completed, the slave unit 200 enters a standby state of the slave unit in which each part of the slave unit other than the control unit 216 is stopped. In the standby state of the slave unit, the control unit 216 enters a so-called sleep mode with low power consumption, and waits for an ON operation of the slave unit power supply SW222.

<Operating state C>
In the operation state C, although the main device 100 described in the operation state E is in a state in which the main power supply SW 122 is turned on, either the parent device 100 or the child device 200 removed from the cradle 300 is currently The state (E-S24) when the remote control power SW 126 of the remote controller 124 is turned on while the television broadcast is not being viewed (E-S11 to E-S15) is shown. The operation state C is the operation state I described in the operation state I, in which the parent device 100 is in the off state and the child device 200 is removed from the cradle 300 (I-S11 to I-S15). The state (E-S24) when the main power supply SW 122 is turned on is also shown. This operation state C corresponds to a case where the user tries to view the television broadcast using the display unit 112 of the parent device 100 in the off state where the child device 200 is removed from the cradle 300.

  In the operating state C, the control unit 116 of the parent device 100 that is turned on by turning on the remote control power source SW 126 of the remote controller 124 or turning on the main power source SW 122 performs the following processing corresponding to the operating state C. Perform the following process.

  The control means 116 sends a switching instruction to supply the video / audio signal of the selected television broadcast channel supplied from the tuner 102 to the display section 112 and the speaker 114 as the master output section to the signal switching means 106. Supply. Further, the control unit 116 supplies an operation stop instruction to the signal processing unit 108 and the wireless transmission / reception unit 110 because the slave unit 200 is in the off state after being removed from the cradle 300. Then, the control means 116 supplies a tuning instruction based on the tuning information stored in the viewing information storage area to the tuner 102.

  As a result, in the parent device 100, the tuner 102 receives the channel selection instruction when the user previously turned off the main power SW 122, and the tuner 102 receives the channel selection, and the video is displayed (operating state). ) Is displayed on the display unit 112 (C-S14).

  As a result, even if the handset 200 is detached from the cradle 300 (C-S12), if the handset 200 is in a non-operating state (non-viewing state) (C-S13, C-S15), When the user turns on the master unit 100 using the remote control power source SW 126 or the main power source SW 122, the user can view a normal television broadcast using the display unit 112 of the master unit 100 (C-S14).

  Then, in this operating state C, the control means 116 of the parent device 100 determines whether the child device 200 is mounted from the cradle 300 by the user (C-S22), whether the main power supply SW 122 is turned off (C-S25), the remote controller It is monitored whether the remote controller power supply SW 126 of the operation device 124 is turned off (C-S26) or whether the slave device 200 is turned on (C-S27).

  In this operation state C, when the control unit 116 detects that the slave unit 200 is mounted from the cradle 300 (C-S22) by the attachment / detachment detection unit 342, the control unit 116 replaces the operation state C with the operation state A in the state storage area. Is updated and stored, and processing corresponding to the operation state A described above is performed.

  Further, in the operating state C, when the control unit 116 detects that the main power source SW 122 is turned off (C-S25), for example, based on the interruption of the driving power source to the control unit 116 itself, the control unit 116 stores the operating state C in the state storage area. Instead, the operation state I is updated and stored, and the processing corresponding to the operation state I described above is performed. The backup power supply 121 is used for the power supply from the turning-off operation of the main power supply SW 122 to this point.

  Further, in the operating state C, the control means 116 detects that the remote control power SW 126 of the remote controller 124 is turned off (C-S26) by the power off signal input via the remote control signal input I / F 118. The operation state E is updated and stored in the state storage area instead of the operation state C, and the processing corresponding to the operation state E described above is performed.

  Further, in the operating state C, the control means 116 indicates that the handset 200 has been turned on (C-S27), and the handset power supply transmitted from the handset 200 based on the ON operation of the handset power supply SW222 by the user. When detected by receiving the SW on information, the operating state B is updated and stored in the state storage area instead of the operating state C, and processing corresponding to the operating state B is performed.

<Operating state B>
The operation state B is a state in which the television broadcast channel that was being viewed on the master unit 100 by the slave unit 200 described in the operation state D is continuously viewed (D-S11 to D-S15). The state (D-S24) when the remote control power source SW 126 is turned on is shown. Further, in the operation state B, when viewing is performed using the display unit 112 of the parent device 100 described in the operation state C, the child device power supply of the child device 200 that is detached from the cradle 300 and is in the off state is displayed. This also corresponds to the state when the SW 222 is turned on (C-S27). In this operation state B, when one of the parent device 100 and the child device 200 is watching a television broadcast, the other of the parent device 100 or the child device 200 that is not currently used for viewing is in a viewing operation. Corresponds to the state where the start operation was performed.

  In the operating state B, the base unit 100 in the first standby state in which only the base unit output unit including the display unit 212 and the speaker 214 is deactivated indicates that the remote control power source SW 126 of the remote control unit 124 is turned on. (D-S24), when detected by the input of the power-on signal via the remote control signal input I / F 118, the control means 116 performs the following processing as processing corresponding to the operating state B.

  The control means 116 supplies drive power from the power supply control means 120 to the display unit 112 and the speaker 114, and in addition to the signal processing means 108 to the signal switching means 106, the video of the television broadcast channel. An instruction to supply the signal and the audio signal to the display unit 112 and the speaker 114 is supplied. As a result, in the master unit 100, the video and audio of the television broadcast channel being viewed on the slave unit 200 are also output from the display unit 112 and the speaker 114 (B-S14).

  Thereby, even when the user is viewing (continuous viewing) the television broadcast by the slave unit 200, another user cancels the first standby state in the master unit 100 and displays the display unit 112 and the speaker 114. By operating the, the video and audio of the same television broadcast channel can be viewed on both the parent device 100 and the child device 200.

  Further, in the operation state B, the base unit 100 that stops the operation of the signal processing unit 108 and the wireless transmission / reception unit 110 and outputs the video and audio of the television broadcast channel from the display unit 212 and the speaker 214 is removed from the cradle 300. When it is detected by the reception of the slave unit power SW ON information transmitted from the slave unit 200 that the slave unit power source SW 222 of the slave unit 200 in the off state is turned on (C-S27), The control means 116 performs the following processing as processing corresponding to the operating state B.

  The control means 116 supplies drive power from the power supply control means 120 to the signal processing means 108 and the wireless transmission / reception means 110, and to the signal switching means 106, in addition to the display unit 112 and the speaker 114, a television set. An instruction to supply the video processing / audio signal of the John broadcasting channel to the signal processing means 108 is also supplied. As a result, in the parent device 100, the transmission signal of the video / audio signal of the television broadcast channel being viewed on the parent device 200 is also output from the wireless transmission / reception unit 110 via the signal processing unit 108.

  As a result, even when the user is viewing (normal viewing) a television broadcast with the parent device 100, another user operates the child device 200 that has been detached from the cradle 300 and turned off. As a result, both the parent device 100 and the child device 200 can view the video and audio of the same television broadcast channel.

  In this operating state B, the control means 116 of the master unit 100 determines whether the user has returned the slave unit 200 to the cradle 300 and installed it (B-S22) or whether the main power supply SW 122 has been turned off (B-S25). ) Whether the remote controller power supply SW 126 of the remote controller 124 is turned off (B-S26), or whether the slave unit power SW off information transmitted based on the user's off operation of the slave unit power SW 222 is received from the slave unit 200 (B-S28).

  Then, the control means 116 of the master unit 100 inputs the attachment detection signal from the attachment / detachment detection means 342 provided in the cradle 300 when the slave unit 200 is returned and attached to the cradle 300 (B-S22). If detected, the operating state A is updated and stored in the state storage area instead of the operating state B, and the processing corresponding to the operating state A described above is performed. This represents returning to the normal viewing state by the main unit 100 by the on operation of the main power supply SW 122 described above.

  In addition, when the control unit 116 of the base unit 100 detects that the main power SW 122 is turned off (B-S25), for example, based on the interruption of the drive power supply to the control unit 116 itself, the user has been watching until just before. Viewing information such as channel selection information of the television broadcast channel is updated and stored in the viewing information storage area. Then, the control unit 116 updates and stores the operation state H instead of the operation state B in the state storage area, and transmits and outputs the state information (that is, the operation state H) of the parent device 100 via the wireless transmission / reception unit 110. The backup power supply 121 is used for the power supply from the turning-off operation of the main power supply SW 122 to this point. Thereby, in the slave unit 200 that receives the transmission signal of the video / audio signal of the television broadcast channel transmitted from the master unit 100, the status information (operation state H) from the master unit 100 is transmitted to the wireless transmission / reception means 210. Will be received via. Then, the control means 216 of the slave unit 200 that has received the operating state H of the parent device 100 stores the operating state H in the state storage area, and the power of the parent device 100 is cut off or transmitted from the parent device 100. An error message indicating that the signal does not reach is displayed on the display unit 212 or generated from the audio output unit 214 and output.

  Further, the control means 116 of the master unit 100 detects that the remote control power SW 126 of the remote controller 124 is turned off (B-S26) by the input of a power off signal via the remote control signal input I / F 118. The operating state D is updated and stored in the state storage area instead of the operating state B, and processing corresponding to the operating state D is performed. The operating state D is a first standby state in which only the base unit output unit including the display unit 212 and the speaker 214 is deactivated as described above. That is, if the remote control power supply SW 126 of the remote controller 124 is turned off while both the master device 100 and the slave device 200 are viewing video and audio of the same television broadcast channel, the master device 100 is The slave unit 200 returns to the first standby state of the operating state D in which the television broadcast is being viewed, and the television broadcast can be continuously viewed by the slave unit 200 thereafter.

  Further, the control unit 116 of the parent device 100 receives the child device power SW off information transmitted from the child device 200 based on the user's operation of turning off the child device power SW 222 by the wireless transmission / reception device 110 (B-S28). Instead of the operating state B, the operating state C is updated and stored in the state storage area, and processing corresponding to the operating state C is performed. After the processing up to this point is completed, the slave unit 200 enters a standby state of the slave unit in which each part of the slave unit other than the control unit 216 is stopped. In the standby state of the slave unit, the control unit 216 enters a so-called sleep mode with low power consumption, and waits for an ON operation of the slave unit power supply SW222. This means that the continuous viewing by the slave unit 200 with respect to the desired television broadcast channel viewed by the master unit 100 is terminated, and the viewing of the television broadcast using the display unit 112 of the master unit 100 is continued. Represents.

<Viewing effect>
Next, viewing of a television broadcast using the parent-child television receiver of this embodiment having the above-described viewing control configuration will be described.

  When the slave unit 200 is attached to the cradle 300 and the master unit 100 is in a power-off state and the slave unit 200 is in a normal state when not in use, that is, in the operating state G of FIG. When the main power supply SW 122 of the parent device 100 is turned on, normal television broadcasting using the display unit 112 and the speaker 114 of the parent device 100 shown in the operation state A can be viewed. When viewing a normal television broadcast using the display unit 112 and the speaker 114 of the parent device 100, the signal processing means 108 and the wireless transmission / reception means for communicating with the child device 200 in the parent device 100 Since the slave unit 200 is attached to the cradle 300 and is in an operation stop state (off charge state) 110, the operation is stopped, and power consumption can be reduced.

  While viewing a normal television broadcast using the display unit of the parent device 100, the user moves from the place where the parent device 100 is placed to a place where the display unit 112 of the parent device 100 cannot be viewed. If it is necessary, the television broadcast channel that has been viewed using the display unit 112 and the speaker 114 of the parent device 100 until just before is removed from the cradle 300 and carried to the destination. As described in D, it is possible to continue viewing at the destination without starting the slave device 200. At this time, the display unit 112 and the speaker 114 of the master unit 100 that is not used for viewing are automatically deactivated, so that power consumption can be saved.

  Even if the user stops the continuous viewing of the television broadcast using the handset 200 at the destination by turning off the handset power supply SW 222 of the handset 200, as described in the operation state E, Since the wireless transmission / reception means 110 continues to function 100, viewing by the slave unit 200 can be resumed by turning on the slave unit power supply SW 222 of the slave unit 200.

  Further, when the user performs a viewing operation of the parent device 100 in the viewing stopped state (off state) in which the child device 200 is removed from the cradle 300 as described above, as described in the operating state C, Since the television broadcast using the display unit 112 and the speaker 114 of the device 100 can be viewed, the television broadcast using the display unit 112 of the parent device 100 even when the child device 200 is placed at the destination. Does not interfere with the viewing of

  In the parent-child television receiver of the present embodiment, for example, a user who is watching using the slave device 200 is different from a user who is watching using the master device 100, and one user is the master device 100 or the slave device. When watching a television broadcast on one of 200, when the other user performs an operation to start viewing on either the parent device 100 or the child device 200 that is not currently used for viewing, As described in the operation state B, the parent device 100 and the child device 200 can simultaneously view the same television broadcast at different places.

  Further, even when the main power supply of the master unit 100 is accidentally turned off during the viewing of the television broadcast using the slave unit 200, the slave unit 200 does so as described in the operation states D and B. Therefore, the user who has been viewing using the slave device 200 can easily perceive the abnormality.

  Furthermore, as described above, base unit 100 has a first standby state corresponding to operation state D, a second standby state corresponding to operation state E, and a first standby state corresponding to operation state F according to the operation state. Since there are a plurality of standby states such as 3 standby states and the operation of each part of the main unit can be controlled according to each standby state, the power consumption can be efficiently reduced according to the operation state.

  In the above description, the viewing switching by the master unit 100 and the slave unit 200 has been described by taking the case of viewing a television broadcast as an example. However, the video / audio signal input to the external device signal input I / F 104 is reproduced. When the remote control operation unit 124 is used to set the input media selection SW 130, the control unit 116 switches the viewing between the master unit 100 and the slave unit 200 for the external device signal input I / F 104 instead of the tuner 102. The same operation control is performed.

  As described above, the parent-child television receiver, the parent device 100, the child device 200, and the child device as examples of the parent-child AV device, the parent device, the child device, and the child device storage device of the present embodiment. Although the storage device 300 is configured, the specific configuration thereof can be variously modified in addition to the specific configuration described above. For example, the slave unit storage device 300 may be configured integrally with the casing of the master unit 100, or may be configured separately from the casing of the master unit 100, and further supplied with power from the master unit 100. Instead of receiving the power supply, a configuration in which the power supply is connected to the power supply independently of the parent device 100 may be employed.

  In this case, the master unit 100 and the cradle 300 according to the present embodiment are configured to be connected by wire and send / receive a detachment / attachment detection signal from the attachment / detachment detection means 342. Similarly, the signal transmission / reception may be performed wirelessly in the same manner as between the parent device 100 and the child device 200. By adopting such a configuration, the cradle 200 can be installed in a location different from the installation location of the parent device 100 (for example, a destination expected in advance), and the child device 200 is also moved to the destination. Therefore, it is not necessary to carry the child device 200 to the movement destination.

  In the above description, when one of the parent device 100 and the child device 200 is watching a television broadcast, the other user is not currently using the parent device 100 or the child device storage device 300. In the case where the start operation of the viewing operation is performed on either one of the slave units 200 that are in the detached state, the master unit 100 or the slave unit 200 can be viewed simultaneously on both the master unit 100 and the slave unit 200. When one of the above is watching a television broadcast, it may be configured exclusively so that the other device of the parent device 100 or the child device 200 that has been operated to start viewing later cannot be viewed.

  Further, in the slave unit 200 of this embodiment, the channel selection operation cannot be performed on the slave unit side. For example, similarly to the remote controller 124, a channel selection SW (channel key) is provided, and the slave unit 200 is provided. When the channel selection SW (channel key) is operated in the power-on state, the channel selection SW operation signal is transmitted from the wireless transmission / reception means 210 of the slave unit 200 to the master unit 100 in the same manner as the status signal. In addition, the channel selection of the tuner 102 on the parent device 100 side may be changed.

  Furthermore, in the present embodiment, the remote controller operation unit 124 and the child device 200 of the parent device 100 are configured separately from each other. However, for example, the child device 200 includes various keys provided in the remote controller operation device 124 and the child device 200. A remote controller / monitor switch SW (switch) for switching between setting whether the device 200 functions as a remote controller or a child television device as a monitor device for the parent device 100 is provided. It is also possible to have a configuration that also has a function as the remote controller 124. In this case, when the handset 200 is set to be switched as a remote controller by the remote control / monitor switching SW (switch), when the handset 200 is removed from the cradle 300, the control means 216 is operated as the remote controller. When the slave unit 200 is set to be switched as a monitor device, the control unit 216 performs a process corresponding to the operation state D described above when the slave unit 200 is removed from the cradle 300.

  In addition, handset 200 may be configured by a mobile phone device having a short-range wireless communication function with base unit 100. In this case, for example, when the mobile phone device as the slave device 200 is mounted on the cradle, the mobile phone device is set to function as a slave television device as a monitor device for the master device 100, and an incoming call response is made. Except when the mobile phone device is removed from the cradle 300, the mobile phone device is configured to function as a monitor device when it is removed from the cradle 300. Conversely, the mobile phone device is removed from the cradle 300 and receives a transmission signal from the parent device 100. Even when the television broadcast is being viewed, the incoming / outgoing function as the cellular phone device may be configured to have priority over the function as the slave unit 200 with respect to the master unit 100.

  In these embodiments, the cradle 300 is provided with the attachment / detachment detection means 342 of the child device 200. However, the attachment / detachment detection means 342 for the cradle 300 is provided on the child device 200 side. When it is removed or attached to the cradle 300, it is also possible to transmit it from the wireless transmission / reception means 210 of the slave unit 200.

  Furthermore, a parent-child television receiver, a parent device 100, a child device 200, and a child device storage device 300 as an example of the parent-child AV device, parent device, child device, and child device storage device of the present embodiment. In this case, when the child device 200 is detached from the child device storage device 300 during viewing by the parent device 100, the viewing by the parent device 100 is stopped. However, both the parent device 100 and the child device 200 can be viewed. You may comprise as follows. Furthermore, when either the parent device 100 or the child device 200 is viewed by the parent device 100 and the child device 200 is removed from the child device storage device 300, whether to stop or continue the viewing by the parent device 100 is determined. Alternatively, a configuration that can be selected and set in advance can be used.

[Second Embodiment]
FIG. 5 is a configuration diagram of an example of a cradle in a parent-child AV apparatus according to another embodiment of the present invention.

  In the second embodiment, components that are the same as or similar to the components of the parent-child television receiver as an example of the parent-child AV device 1 described in the first embodiment are denoted by reference numerals. The same number is attached | subjected about the last 2 digits, and the detailed description about the said component is abbreviate | omitted.

  In the parent-child AV apparatus 1 according to the present embodiment, a cradle 300 as a slave unit storage apparatus includes an external device signal input I / F 304, a signal switching unit 306, a signal processing unit 308, a wireless transmission / reception unit 310, a control unit 316, and a power source. It has control means 320, attachment / detachment detection means 342, charging means 340, and external device signal output I / F 344.

  The external device signal input I / F 304 receives a video signal, an audio signal, or a video / audio signal from an external media device such as a tuner or a DVD player. In FIG. 5, the cradle 300 includes a plurality of external device signal input I / Fs 304 to which external media devices such as a tuner and a DVD player are connected. The external device signal input I / F 304 is a video signal supplied from the connected external media device only from one external device signal input I / F 304 selected by a setting operation of an input switching SW (switch) 346 described later. , Audio signals, or video / audio signals are supplied to the signal switching means 306.

  The signal processing unit 308 performs signal processing suitable for wireless communication on the video signal, the audio signal, or the video / audio signal supplied from the signal switching unit 306, for example, by compressing the video signal by MPEG. Then, transmission data of the video signal, audio signal, or video / audio signal is generated and supplied to the wireless transmission / reception means 310.

  The wireless transmission / reception means 310 receives the transmission data of the video signal, the audio signal, or the video / audio signal supplied from the signal processing means 308 and the transmission data of the status information of the parent device 100 managed by the control means 316 described below. Wireless transmission output is performed according to a predetermined short-range wireless communication standard such as IEEE802.11a, 802.11b, 802.11g, Bluetooth, UWB (Ultra Wide Band) or the like. Further, the wireless transmission / reception unit 310 receives transmission data of the status information of the slave unit 200 transmitted from the slave unit 200 according to a predetermined short-range wireless communication standard, and supplies the transmission data to the control unit 316.

  The input switching SW 346 selects and sets an external device signal output I / F 344 as information generation means for supplying an information signal (corresponding to the above-described video signal, audio signal, or video / audio signal) to the signal switching unit 306 by the user. It is an operation piece. The external device signal output I / F 344 outputs a video / audio signal supplied from a supply-side external device such as a tuner or a DVD to an output device as the parent device 100, for example, the external television 100. Based on the slave unit attachment / detachment detection signal supplied from the cradle 300, the control means 116 controls the operation of each part of the cradle described above in the same manner as in the case of the master unit 100 described with reference to FIG.

  According to the cradle 300 as a slave unit storage device configured as described above, an external media device such as a tuner or a DVD is connected to the external device signal input I / F 304 and the master device 100 is connected to the external device signal output I / F 344. The external television 100 and the child device 200 can be made to function as a parent-child television receiver, that is, the parent-child AV device 1 only by connecting the external television 100 ′ constituting the device.

  That is, in a state in which the child device 200 is attached to the cradle 300, a normal television using the display unit of the external television 100 ′ as the parent device 100 is performed in the same manner as the processing corresponding to the work state A described with reference to FIG. You can watch John Broadcasting. In this state, the signal processing unit 308 and the wireless transmission / reception unit 310 for communicating with the slave unit 200 in the cradle 300 are in an operation stop state (off charge) while the slave unit 200 is mounted on the cradle 300. State), power consumption can be saved.

  A place where the user cannot visually recognize the display unit of the external TV 100 ′ from the place where the external TV 100 ′ is placed while viewing the external media video using the external TV 100 ′ as the parent device 100. If the mobile device has to be moved to the mobile device, it is possible to operate the external media video that has been viewed using the external TV 100 ′ as the master device 100 just before the slave device 200 is removed from the cradle 300 and carried to the destination. Similarly to the processing corresponding to the state D, it is possible to continue viewing at the destination without requiring a special activation operation of the slave device 200.

  Further, even when the user stops the continuous viewing of the external media video using the slave unit 200 at the destination by turning off the slave unit power supply SW 222 of the slave unit 200, the process is the same as the process corresponding to the operation state E. Since the wireless transmission / reception means 310 continues to function in the cradle 300, viewing by the slave unit 200 can be resumed by turning on the slave unit power SW 222 of the slave unit 200.

  In the parent-child television receiver of this embodiment, for example, a user who is watching using the slave device 200 is different from a user who is watching using the external television 100 ′ of the parent device 100, and one user is When viewing an external media image on either the parent device 100 or the child device 200, the other user performs an operation of starting viewing on either the parent device 100 or the child device 200 that is not currently used for viewing. If it is performed, the same external media image can be viewed at different locations simultaneously in the base unit 100 and the base unit 200 in the same manner as the processing corresponding to the operation state B.

  The parent-child television receiver of the present embodiment is as described above, but various modifications can be made to its specific configuration.

  For example, in the embodiment of the cradle 300 as the slave unit storage device described above, video / audio signals are transmitted between the cradle 300 and the external television 100 ′ as the master unit 100 via the external device signal output I / F 344. However, a remote control code such as remote controller power on / off of the external television 100 ′ is stored in advance as a table in the memory of the control means 310, and the cradle 300 side as an external device as the master unit 100 is stored. It is also possible to control the operation of the television 100 ′. In this case, when the slave unit 200 is detached from the cradle 300 and the external media image is continuously viewed while the external media image is being viewed on the external television 100 ′ as the master unit 100, the remote control power is turned off from the cradle 300. When the remote control code is supplied to the external television 100 ′ and the slave device 200 is attached to the cradle 300 and the continuous viewing of the external media video by the slave device 200 ends, the remote control code with the remote control power on is supplied to the external television 100 ′. Supply. As a result, the external television 100 ′ can be put into a standby state (remote control power-off state) while viewing the external media video by the slave unit 200, thereby further reducing power consumption.

  In addition, although the parent-child AV apparatus 1 according to the present embodiment is configured so that one of the AV devices 1 is fixedly disposed as the parent device 100 and the other is movably disposed as the child device 200 with respect to the parent device 100, The master unit 100 and the slave unit 200 may be configured to be portable. For example, the parent device 100 is configured by a mobile device (including a mobile phone device with a television reception function) having a television reception function or an external device signal input I / F, and the child device 200 is different from the parent device 100. Mobile devices (including mobile phone devices) and their cradle. In addition, base unit 100 includes a mobile device (including a mobile phone device) and a cradle having a television reception function or an external device signal input I / F, and slave unit 200 is a mobile device different from base unit 100. You may comprise by an apparatus and its cradle. In these cases as well, in the same manner as in the above-described embodiment, the mobile device on the handset side can be removed by removing the mobile device on the handset side from the cradle of the video that was viewed on the mobile device on the base unit 100 side. It can be viewed continuously on the device. In this case, the cradle of the mobile device of the parent device 100 and the cradle of the mobile device of the child device 200 are not limited to being integrated or separated, but may be common.

[Third Embodiment]
FIG. 6 is a block diagram of a parent-child AV apparatus according to still another embodiment of the present invention.

  A parent-child AV device 1 according to an embodiment of the present invention includes a parent device 100 ″, a child device 200 ″, and a cradle 300 ″ as a child device storage device that detachably stores and holds the child device 200 ″. Configured. For the sake of simplicity of explanation, in the description of the parent-child AV apparatus 1 of the present embodiment, the parent-child television receiver used in the description of the first embodiment will be described as an example.

  Accordingly, the base unit 100 ″ of the present embodiment is different from the base unit 100 of the first embodiment shown in FIG. 2 in that the detachment detecting means 342 detects the cradle 300 with respect to the cradle 300. Since the configuration is the same except that is not provided, the same reference numerals are given to the configuration, and detailed description thereof is omitted.

  FIG. 7 is a configuration diagram of a slave unit applied to the parent-child AV device according to the present embodiment.

  The configuration of the child device 200 ″ applied to the parent-child AV device according to the present embodiment is the same as that of the child device 200 applied to the parent-child AV device according to the first embodiment shown in FIG. The description of the structure is abbreviate | omitted.

  The parent-child AV apparatus 1 according to the present embodiment having such a configuration is provided with a predetermined operation instruction switch in the child device 200 ″ instead of providing the attachment / detachment detection means 342 in the cradle 300 ″. In response to a user operation, the video viewed on the output devices 112 and 114 on the parent device 100 ″ side can be continuously viewed on the output devices 212 and 214 on the child device 200 ″ side. In the present embodiment, the slave unit power supply SW 222 of the slave unit 200 ″ is also used as the predetermined operation instruction switch described above.

  In the parent-child AV apparatus 1 according to the present embodiment, the parent device 100 ″ is detached from the cradle 300 for the start of continuous viewing by the power-on operation of the child device power supply SW222 on the child device 200 ″ side. It is assumed that the slave unit 200 ″ has been returned to the cradle 300 by the end of continuous viewing by the power-off operation of the slave unit power SW 222.

  FIG. 8 is a state transition table of the parent device 100 ″ and the child device 200 ″ shown in FIGS.

  The control unit 116 of the master unit 100 ″ and the control unit 216 of the slave unit 200 ″ in the parent-child television receiver perform viewing control according to the state transition table shown in FIG.

  In FIG. 8, symbols A to H in the table indicate the operation states (types of operation states) of the parent device 100 ″ and the child device 200 ″ stored in the state storage areas of the parent device 100 ″ and the child device 200 ″. It is a thing. In FIG. 8, reference numerals S11 to S15 in the table indicate individual states of the parent device 100 ″ and the child device 200 ″ in the respective operation states A to H. Similarly, reference symbols S21 to S28 indicate the respective operation states A to H. The individual statuses monitored by the master unit 100 ″ and the slave unit 200 ″ are shown in FIG. And each column A-S11-H-S15 prescribed | regulated by the matrix of the operation state AH in the table | surface and state item S11-S15 is the main | base station 100 "or the sub-unit 200" in the operation state A-H. Each of the columns A-S21 to H-S28 defined by the matrix of the operation states A to H and the state items S21 to S28 is the parent device 100 "or the child device in the operation states A to H. 200 "represents the transition destination of the operating states A to H.

  Further, when the parent device 100 ″ and the child device 200 ″ perform the viewing control according to the state transition table shown in FIG. 8, the parent device 100 ″ stores the work state stored in its own state storage area. The slave unit 200 ″ includes a slave unit state confirmation process and a master unit state confirmation process in order to perform synchronization adjustment of both work states with the storage of the work state stored in its state storage area. ing.

  The slave unit status confirmation process is provided in the control unit 116 of the master unit 100 ", and when the master unit 100" is turned on later with respect to the slave unit 200 ", the status storage area of the master unit 100" In the operation state G stored in the above, that is, in the operation state G in which both the parent device 100 ″ and the child device 200 ″ in the parent-child television receiver described later are powered off, etc. When the parent device 100 ″ executes the control operation for the power-on state corresponding to the work state stored in the state storage area, the child device 200 ″ is first turned on with respect to the parent device 100 ″. This is a process for confirming whether or not the actual work state is different from the work state stored in the state storage area.

  Therefore, when the main power supply SW 122 is turned on by the user, the master unit 100 ″ controls according to the operation state (for example, the operation state G) stored in the state storage area based on the on operation of the main power supply SW122. Before the operation is performed, the read request signal for the work state stored in the state storage area of the slave unit 200 ″ is transmitted from the wireless transmission / reception means 110 to the slave unit 200 ″. In response to the read request signal for the work state, 100 ″ indicates an operation state (for example, an operation state) stored in the state storage area of the child device 200 ″ from the child device 200 ″ that has been previously turned on. When the reply of H) is received, the operating state (for example, the operating state G) of the state storage area of the parent device 100 ″ itself is updated to the received operating state (for example, the operating state G). From executes a control operation based on the ON operation of the main power supply SW122 corresponding to updated operating state (e.g., actuated state G).

  On the other hand, the parent device state confirmation process is provided in the control unit 216 of the child device 200 ″, and the child device 200 ″ is turned on before the parent device 100 ″ is turned on. Corresponding to the slave unit status confirmation process by 100 ″, the slave unit 200 ″ itself updates the work state from the master unit 100 ″ instead of the master unit 100 ″ that cannot receive the signal from the slave unit 200 ″ in the power-off state. The changed work state can be updated and stored in the state storage area of the child device 200 ″ itself without being supplied with a signal.

  Normally, the child device 200 ″ corresponds to detection of the removal of the child device 200 ″ from the cradle 300 from the wireless transmission / reception means 210 toward the parent device 100 ″ when the child device power supply SW 222 is turned on or off by the user. An on-operation detection signal or an off-operation detection signal corresponding to the attachment of the child device 200 ″ to the cradle 300 is transmitted. When the base unit 100 ″ receives the on-operation detection signal or the off-operation detection signal via the wireless transmission / reception unit 110 when the base unit 100 ″ is in the power-on state, the base unit 100 ″ has its own state storage area. The control operation according to the operation state memorize | stored in this is performed, and the operation state corresponding to the control operation is memorize | stored in a state memory | storage area. At the same time, the parent device 100 ″ is configured to transmit an operation state update signal corresponding to the updated operation state from the wireless transmission / reception means 110 to the child device 200 ″. Accordingly, when the slave unit 200 ″ can receive the operation state update signal from the master unit 100 ″ via the wireless transmission / reception means 210, the slave unit 200 ″ own operation state stored in the state storage area of the slave unit 200 ″ itself Is updated and stored in the operation state by the operation state update signal from the master unit 100 ", and the work states stored in both state storage areas are synchronized.

  However, for example, when the child device power SW 222 is turned on or off by the user, if the parent device 100 ″ is turned on, that is, the main power SW 122 is not turned on, transmission is performed from the child device 200 ″ described above. Since the on-operation detection signal or the off-operation detection signal to be received cannot be received, the operating state stored in the state storage area of the parent device 100 ″ itself cannot be updated based on these received signals.

  Therefore, in the case of the present embodiment, the slave unit 200 ″ transmits the on-operation detection signal or the off-operation detection signal based on the user operation of the slave unit power supply SW222 to the master unit 100 ″. When the operating state update signal is not received from the parent device 100 ″ within the range, the working state is updated and stored based on the working state stored in its own state storage area.

  Therefore, when the child device 200 ″ is turned on before the parent device 100 ″, the child device 200 ″ is turned off in the power-off state in response to the child device state confirmation process by the parent device 100 ″. Instead of the parent device 100 ″ that cannot receive the signal, the child device 200 ″ itself does not supply the work state update signal from the parent device 100 ″, and the changed work state H is stored in the state of the child device 200 ″ itself. It can be updated and stored in the area.

  Hereinafter, the transition of the operation states of the parent device 100 ″ and the child device 200 ″ will be described in each of the operation states A to H illustrated in FIG.

<Operating state G>
The operating state G is a state in which the main power supply SW122 of the parent device 100 ″ is turned off (column G-S11), and the child device power supply SW222 of the child device 200 ″ is also turned off (column G-S13). The parent device 100 ″ and the child device 200 ″ of the parent-child television receiver are both in a power-off state (the parent-child television receiver is not operated).

  In the operating state G, since the parent device 100 ″ is in the power-off state (G-S11), the display unit 112 constituting the parent device output unit is in a non-displaying state (non-operating state) (G -S14) Further, since the slave unit 200 "is also in the power-off state (G-S13), the display unit 212 constituting the slave unit output unit is in a non-display state (non-operating state) ( G-S15).

  In this operating state G, the master unit 100 ″ is waiting for the user to turn on the main power switch 122 (G-S23). The slave unit 200 ″ is also connected to the slave unit power source SW 222 by the user. It is in an on-operation waiting state (in this case, waiting for a viewing start operation) (G-S27).

  In this operating state G, when the main power supply SW 122 of the parent device 100 ″ is turned on by the user (G-S23), the parent device 100 ″ executes the above-described child device state confirmation processing, and the child device 200 ″ is still not connected. When the power is off, the operation state A is stored in the state storage area of the device in place of the operation state G, and processing corresponding to the operation state A is performed.

  On the other hand, in this operating state G, when the handset power supply SW222 of the handset 200 "is turned on by the user (G-S27), the handset 200" executes the above-mentioned base unit status check process, Since the machine 100 ″ is not yet powered on, the operating state H is stored in place of the operating state G in its own state storage area.

<Operating state A>
The operating state A is a state in which the main unit SW ″ of the parent device 100 ″ is turned on (G-S27) when the child device 200 ″ is not in the on state (G-S11 to G-S15). This corresponds to a normal viewing state using the display unit 112 and the speaker 114 of the device 100 ″. As a result, the parent device 100 gives a channel selection instruction when the user previously turned off the main power switch 122. The selected television broadcast channel is selected and received by the tuner 102, and the video is displayed on the display unit 112 in the display state (operation state) (A-S14).

  Further, since the child device 200 ″ is not yet in the power-on state (A-S13), the display unit 212 constituting the child device output unit is not displayed (A-S15).

  Thereby, in the operation state G described above, in the operation state A in which the main power supply SW122 of the parent device 100 ″ is first turned on with respect to the child device power supply SW222 of the child device 200 ″, the user displays the parent device 100 ″. A normal television broadcast using the unit 112 can be viewed.

  Then, in this operating state A, parent device 100 ″ has turned off main power supply SW 122 by the user (A-S25), turned off remote control power supply SW 126 of remote controller 124 (A-S26), It is monitored whether or not the handset power supply SW 222 of the device 200 ″ is turned on (A-S27).

  Then, when detecting that main power supply SW 122 has been turned off (A-S25), master unit 100 ″ stores viewing information such as channel selection information of the television broadcast channel that the user has been viewing immediately before. The base unit 100 ″ updates and stores the operation state G in place of the operation state A in the state storage area, and returns to the operation state G described above.

  The backup power supply 121 is used for power supply from the off operation of the main power supply SW 122 to this point. Therefore, when the main power supply SW 122 is turned off in the operation state A, it means that the user has finished watching the normal television broadcast using the display unit 112 of the master unit 100 ″.

  Further, when the master unit 100 ″ detects that the remote controller power SW of the remote controller 124 has been turned off (A-S26) by the input of the remote controller power off signal via the remote controller signal input I / F 118, Is updated and stored in the viewing information storage area, such as the channel selection information of the television broadcast channel that the user has watched until just before. Is updated and stored, and processing corresponding to an operating state F described later is performed. In this operating state A, when the remote control power SW of the remote control unit 124 is turned off, the viewing of the normal television broadcast using the display unit 112 of the master unit 100 ″ by the user is interrupted. It represents.

  Furthermore, the master unit 100 ″ transmits a slave unit power supply SW222 of the slave unit 200 ″ that is turned on based on the slave unit power source SW222 being turned on to the slave unit 200 ″ that is transmitted via the wireless transmission / reception means 210. When detected by receiving the on-operation signal of the machine power SW 222 (A-S27), the operating state D is updated and stored instead of the operating state A in the state storage area, and processing corresponding to the operating state D described later is performed. The base unit 100 ″ transmits the transition signal of the operation state D from the wireless transmission / reception means 110 to the slave unit 200 ″ that is in the ON state, and the state storage area of the slave unit 200 ″ is also in the operation state G is updated to the operating state D.

<Operating state D>
The operation state D is a normal viewing state using the display unit 112 of the parent device 100 ″ described in the operation state A (A-S11 to A-S15), and the child device power SW 222 of the child device 200 ″ is turned on. Shows the state of the case (A-S27). This operation state D corresponds to a state in which the television broadcast channel viewed on the display unit 112 of the parent device 100 ″ is continuously viewed by the portable child device 200 ″.

  In the operating state D, the master unit 100 ″ performs the following processing corresponding to the operating state D by receiving the ON operation signal of the slave unit power supply SW222 supplied from the slave unit 200 ″ based on the ON operation of the slave unit power supply SW222. Perform the following process.

  When the on-operation signal of the slave unit power supply SW 222 is supplied from the slave unit 200 ″, the master unit 100 ″ stops the operation of the master unit output unit including the display unit 112 and the speaker 114 (D-S11, D-S14). ).

  On the other hand, the base unit 100 ″ activates the signal processing means 108, and displays, for example, the video / audio signal of the selected television broadcast channel supplied from the tuner 102 to the signal switching means 106 on the display unit. The supply is switched from the 112 and speaker 114 side to the signal processing means 108 side.

  As a result, the video / audio signal of the television broadcast channel selected and received by the tuner 102 is subjected to signal processing by the signal processing unit 108 from the base unit 100 ″, and then transmitted from the wireless transmission / reception unit 110 to the slave unit 200. "" In the present embodiment, the operation state update signal of the state information D stored in the state storage area at that time is also added to the transmission signal of the video / audio signal and transmitted.

  Therefore, the transmission signal of the video / audio signal of the television broadcast channel transmitted from the parent device 100 ″ is received by the wireless transmission / reception means 210 of the child device 200 ″ already turned on, and the signal processing means 208 The signal and audio signal are processed and restored, and output from the display unit 212 and the speaker 214 (D-S15).

  In addition, the slave unit 200 ″ also receives an operation state update signal from the master unit 100 ″ transmitted in addition to the transmission signal of the video / audio signal at that time. Then, the transmitted operation state update signal (operation state D) of the parent device 100 ″ is updated and stored in the state storage area of the child device 200 ″.

  As a result, when the user is viewing a desired television broadcast channel on the parent device 100 ″, the user simply turns on the child device power supply SW 222 (D-S13) and is viewing on the parent device 100 ″. The television broadcast channel video can be continuously viewed on the display unit 212 of the slave unit 200 ″ (D-S15).

  Further, in the parent-child television receiver of the present embodiment, after the continuous viewing by the child device 200 ″ is started, the parent device 100 ″ stops operating only the parent device output unit including the display unit 112 and the speaker 114. In this state (D-S11, D-S14), energy saving of the master unit 100 "is automatically performed.

  Further, in this operating state D, the master unit 100 ″ determines whether the remote controller power supply SW126 of the remote controller 124 is turned on by the user (D-S24), the main power supply SW122 is turned off (D-S25), Whether or not the slave unit power SW off information transmitted from the slave unit 200 ″ based on the user's off operation of the slave unit power source SW 222 has been received (D-S28) is monitored. Further, the slave unit 200 ″ monitors whether or not the slave unit power supply SW 222 has been turned off by the user based on the reception of the status information (operation state D) from the master unit 100 ″ (D-S28).

  When the master unit 100 ″ detects that the remote control power source SW 126 of the remote control unit 124 is turned on (D-S24) by the input of the remote control power on signal via the remote control signal input I / F 118, In the storage area, the operating state B is updated and stored in place of the operating state D, processing corresponding to the operating state B is performed, and an operating state update signal of the state information B is transmitted to the slave unit 200 ″. Then, the slave device 200 ″ updates and stores the operating state B instead of the operating state D in the state storage area based on the reception of the operating state update signal (state information B) from the parent device 100 ″.

  In addition, when detecting that main power supply SW 122 has been turned off (D-S25), base unit 100 ″ stores viewing information such as channel selection information of the television broadcast channel that the user has watched immediately before. The base unit 100 ″ updates and stores the operating state H in place of the operating state D in the state storage area, and transmits the operating state update signal of the state information H to the slave unit 200 ″. At the same time, processing corresponding to the operating state H is performed, whereby the slave unit 200 ″ receiving the transmission signal of the video / audio signal of the television broadcast channel transmitted from the master unit 100 ″ is transmitted to the master unit 100. Status information (operating state H) is received, the operating state H is stored in the state storage area instead of the operating state D, and the power of the parent device 100 "is turned off or from the parent device 100" Or to display an error message indicating that the transmission signal does not reach the display unit 212, and outputs or by uttered from the sound output unit 214. The power supply from the main power supply SW 122 to the main power supply SW122 is turned on by using the backup power supply 121. As a result, while viewing the television broadcast using the display unit of the slave device 200 ''. Even when the power of the parent device 100 ″ is turned off, the user can grasp the state on the child device 200 ″ side.

  Further, when the parent device 100 ″ detects that the child device power supply SW222 of the child device 200 ″ is turned off (D-S28) and receives the off operation signal of the child device power supply SW222, the parent device 100 ″ stores in the state storage area. The operating state E is updated and stored in place of the operating state D, processing corresponding to the operating state E described later is performed, and an operating state update signal of the state information E is transmitted. Further, when the slave unit power supply SW 222 is turned off in this operation state D, the slave unit 200 ″ transmits the above-described slave unit power source SW 222 off operation signal to the master unit 100 ″, and the master unit 100 ” , The operation state E is updated and stored in the state storage area instead of the operation state D, and then the power is turned off.

  Therefore, the user can interrupt the continuous viewing if the slave unit power SW 222 of the slave unit 200 ″ is turned off during the continuous viewing of the television broadcast using the slave unit 200 ″.

<Operating state F>
The operating state F is a viewing state using the display unit 112 of the parent device 100 ″ described in the operating state A (A-S11 to A-S15), and the remote control power source SW 126 of the remote controller 124 is turned off. The operation state F corresponds to a state in which the television broadcast channel viewed on the display unit 112 of the parent device 100 ″ is temporarily stopped.

  In the operating state F, the master unit 100 ″ in the power-on state (A-S11) indicates that the remote control power supply SW126 of the remote controller 124 is turned off (A-S26) via the remote control signal input I / F 118. As a process corresponding to the operating state F, the following process is performed.

  When the power-off signal is supplied from the remote controller 124, the master unit 100 ″ receives each unit other than the control unit 116 and the remote control signal input I / F 118, that is, the tuner 102, the signal switching unit 106, the signal processing unit 108, The power supply from the power control means 110 to the display unit 112 and the speaker 114 is stopped, and the operation is stopped (F-S11). As a result, the parent device 100 ″ is connected to the parent unit including the display unit 112 and the speaker 114. The video and audio output from the machine output unit is stopped (F-S14), and the main unit other than the control unit 116, the wireless transmission / reception unit 110, and the remote control signal input I / F 118 is stopped, so-called normal remote control off state ( A third standby state). In the case of the present embodiment, the wireless transmission / reception means 110 is not in an operation stop state so that it can receive an ON operation signal of the slave unit power SW 222 from the slave unit 200 ″.

  In this operating state F, if the user re-operates the remote controller power supply SW 126 of the remote controller 124 (F-S24), the master unit 100 ″ turns on the power from the remote controller 124 via the remote control signal input I / F 118. Accordingly, the control means 116 updates and stores the operation state A in place of the operation state F in the state storage area, and performs processing corresponding to the operation state A described above. Then, the viewing of the television broadcast channel that was being viewed on the display unit 112 when the remote controller power supply SW 126 of the remote controller 124 is turned off is resumed.

  In the operating state F, when the main power SW 122 is turned off by the user (F-S25), the master unit 100 ″ is disconnected from the power control means 120 and the commercial power source, The control means 116, the wireless transmission / reception means 110, and the remote control signal input I / F 118 are also deactivated. At this time, the master unit 100 ″ indicates that the main power supply SW 122 has been turned off (F-S25), for example, the control means 116. If detected based on the interruption of the drive power supply to itself, the operating state G is updated and stored in the state storage area instead of the operating state F, and the operating state G is returned to. The backup power supply 121 is used for the power supply from the turning-off operation of the main power supply SW 122 to this point.

  In this operating state F, when the user turns on the child device power supply SW222 of the child device 200 ″ (F-S27), the parent device 100 ″ turns on the child device power supply SW222 from the child device 200 ″. The signal is received, the power supply from the power control unit 110 to the tuner 102, the signal switching unit 106, and the signal processing unit 108 is resumed, and the operating state D is updated and stored in the state storage area instead of the operating state A. The base unit 100 ″ transmits a transition signal of the operating state D from the wireless transmission / reception means 110 to the slave unit 200 ″ that is turned on. In this case, the state storage area of the machine 200 ″ is also updated from the previous operating state to the operating state D.

  As a result, when the parent device 100 ″ is in the operation state F due to the remote controller power supply SW126 being turned off and the child device power supply SW222 is turned on, switching viewing using the display unit 212 of the child device 200 ″ by the user is started. It represents that.

<Operating state E>
The operation state E is a state in which the television broadcast channel that has been viewed on the parent device 100 ″ described in the operation state D is continuously viewed on the child device 200 ″ (D-S11 to D-S15), and the child device 200. 2 shows a state (D-S28) in which the child device power supply SW222 provided in "" is turned off to stop viewing. This operation state E is a state in which the main device SW "is turned on. However, it corresponds to a state where the television broadcast is not currently being viewed by either the parent device 100 ″ or the child device 200 ″.

  In the operation state E, the master unit 100 ″ performs the following process as a process corresponding to the operation state E.

  The master unit 100 ″ itself is a power control unit 110 for each unit other than the remote control signal input I / F 118 and the wireless transmission / reception unit 110, that is, the tuner 102, the signal switching unit 106, the signal processing unit 108, the display unit 112, and the speaker 114. The supply of the drive power from is stopped, and the operation is stopped (E-S11). Thereby, the master unit 100 "can operate only the communication function between the remote controller 124 and the slave unit 200". It will be in a standby state.

  As a result, the display unit 112 of the master unit 100 ″ is in a non-display state (E-S14). The slave unit 200 ″ is also in the off state as described in the operation state D-S28. (E-S12, E-S13), the display unit 212 is also not displayed (E-S15).

  In this operating state E, the master unit 100 ″ indicates that the user has turned on the remote control power source SW 126 of the remote control unit 124 (E-S24), has turned off the main power source SW 122 (E-S25), It is monitored whether the 200 "cordless handset power supply SW 222 is turned on by the user (E-S27).

  Further, the slave unit 200 ″ is waiting for the user to turn on the slave unit power SW 222 (E-S27). Then, the slave unit 200 ″ is turned on when the slave unit power source SW 222 is turned on. As described above, each part except the slave unit output unit is once in an operating state, and transmits an ON operation signal of the slave unit power supply SW 222 to the master unit 100 ″ via the wireless transmission / reception means 210. .

  In this operating state E, when the master unit 100 ″ detects the reception of the ON operation signal of the slave unit power supply SW 222 from the slave unit 200 ″ (E-S27), the operating state D is set in the state storage area instead of the operating state E. Update storage is performed, processing corresponding to the operation state D described above is performed, and an operation state update signal of the state information D is transmitted to the child device 200 ". That is, the parent device 100" includes the tuner 102 and the signal switching means. 106 and the signal processing means 108 are operated so that only the display unit 112 and the speaker 114 are deactivated, and a tuning instruction based on the tuning information stored in the viewing information storage area is given to the tuner 102. Supply. Then, base unit 100 ″ updates and stores operation state D in place of operation state E in the state storage area, and performs processing corresponding to operation state D described above.

  As a result, the video / audio signal of the television broadcast channel selected and received by the tuner 102 is subjected to signal processing by the signal processing unit 108 from the base unit 100 ″, and then transmitted from the wireless transmission / reception unit 110 to the slave unit 200. "" In the present embodiment, the operation state update signal of the state information D updated and stored in the state storage area at that time is also added to the transmission signal of the video / audio signal and transmitted to the child device 200 ″. As a result, in the operation state D in which the television 200 is being watched by the slave device 200 ″, the slave device power supply SW222 of the slave device 200 ″ is turned off to stop viewing. Even (D-S27), by turning on the handset power supply SW222 of the handset 200 "(E-S27), viewing by the handset 200" can be resumed.

  Further, when the master unit 100 ″ detects that the remote control power SW 126 of the remote control unit 124 is turned on (E-S24) by a power on signal via the remote control signal input I / F 118, the master unit 100 ″ stores the status storage area. The operating state C is updated and stored in place of the operating state E, and processing corresponding to the operating state C is performed.

  Further, when detecting that main power supply SW 122 has been turned off (E-S25), base unit 100 ″ stores viewing information such as channel selection information of the television broadcast channel that the user has been viewing the latest. The update is stored in the area, and the operation state G is updated and stored in the state storage area in place of the operation state E, and the process corresponding to the operation state G is performed. Is used.

<Operating state H>
The operation state H is a state in which the main power supply SW122 of the parent device 100 ″ is turned off (H-S11), and the child device 200 ″ is turned on (operational state) when the user turns on the child device power supply SW222. (H-S13). In this case, since the parent device 100 ″ is not yet in the power-on state by executing the above-described parent device state confirmation process based on the ON operation of the child device power supply SW222, only the state storage area of the child device 200 ″ is activated. H is stored.

  In this operation state H, the main power supply SW122 is in the OFF state in the master unit 100 ", and therefore the electrical connection between the power control means 120 of the master unit 100" and the commercial power supply is cut off. (H-S11). Therefore, the drive power is not supplied to each part of the master unit via the power control means 120, and the display unit 112 constituting the master unit output unit is also in a non-display state (non-operating state) (H-S14) The control means 106 and the wireless transmission / reception means 110 are also inactive.

  On the other hand, the slave unit 200 ″ is turned on by turning on the slave unit power SW 222 (H-S13), and each unit of the slave unit is driven from the rechargeable battery 250 via the power control means 220. , And the display unit 212 constituting the slave unit output unit is also operated, but since the transmission signal of the video / audio signal is not transmitted from the master unit 100 ″, the display unit 212 is in a non-display state (H− S15).

  In this operating state H, the parent device 100 ″ is in a state waiting for the user to turn on the main power supply SW122 (H-S23). The child device 200 ″ is operated by the user to turn off the child device power supply SW222. Waiting state (H-S27) (H-S27).

  In this operating state H, when the main power SW 122 of the parent device 100 ″ is turned on by the user (H-S23), the power control means 120 and the commercial power supply are connected, and the control means 116 of the parent device 100 ″. Drive power is supplied to The master unit 100 ″ performs the above-described slave unit state confirmation processing by supplying the driving power. In this operation state H, the slave unit 200 ″ is already in the power-on state. The state H is stored, and the process is executed when the parent device 100 ″ is turned on in the operating state H. As a result, the main power SW 122 of the parent device 100 ″ is turned on by the user (H-S23). An operation state C described later is updated and stored in the state storage area instead of the operation state H, and processing corresponding to the operation state C is performed. At this time, the master unit 100 ″ transmits a work state update signal of the operating state D from the wireless transmission / reception means 110 to the slave unit 200 ″ that is turned on, and the status storage area of the slave unit 200 ″ is also this. In this case, the previous operating state H is updated to the operating state D.

  Accordingly, the user turns on the slave power supply SW222 of the slave device 200 ″ and then turns on the main power supply SW122 of the master device 100 ″, so that the slave device 200 ″ remains in the on state. As in the case where the handset power supply SW 222 is turned on, the television broadcast channel video or the like can be continuously viewed on the display unit 212 of the handset 200 ″ (D-S15 to D-S15).

  Further, when the slave unit power supply SW 222 of the slave unit 200 ″ is turned off in this operation state H (H-S28), the slave unit 200 ″ executes the above-described master unit state confirmation process, and the master unit 100 Since "" is in the off state, the work unit G "is updated and stored in place of the work state H stored in the state storage area of the hand unit, and then the hand unit 200" is turned off.

<Operating state C>
The operation state C is a state in which the television broadcast viewing by the child device 200 ″ described in the operation state E is interrupted by the operation of turning off the child device power supply SW222, and the display unit 112 and the main power supply SW122 remain turned on. The state (E-S11 to E-S15) when the remote controller power supply SW 126 of the remote controller 124 is turned on with respect to the master unit 100 ″ in which the master unit output means including the speaker 114 is in an inoperative state (E S24).

  In the operating state C, the master unit 100 ″ performs the following process as a process corresponding to the operating state C by turning on the remote control power supply SW 126 of the remote controller 124.

  The master unit 100 ″ sends a switching instruction to supply the video / audio signal of the selected television broadcast channel supplied from the tuner 102 to the display unit 112 and the speaker 114 as the master unit output unit. Further, the master unit 100 ″ supplies the operation stop instruction to the signal processing unit 108 because the slave unit 200 ″ is in the off state.

  As a result, in the master unit 100 ″, the tuner 102 receives and selects and receives the television broadcast channel that has been interrupted or terminated by the turning off of the slave unit power SW 222 in the slave unit 200 ″, and the video is displayed (actuated). Is displayed on the display unit 112 in the (status) (C-S14).

  Thus, even when the user interrupts or terminates viewing by the slave unit 200 ″ by turning off the slave unit power SW 222, the main power source SW 122 of the master unit 100 ″ is not turned off and the user can control the remote controller power source SW 126. When the master unit 100 ″ is turned on, the television broadcast using the display unit 112 of the master unit 100 ″ can be continuously viewed (C-S11 to C-S15).

  Then, in this operating state C, parent device 100 ″ has its main power supply SW122 turned off (C-S25), remote control power supply SW126 of remote controller 124 is turned off (C-S26), user Therefore, it is monitored whether or not the slave unit power supply SW 222 of the slave unit 200 ″ is turned on (C-S27).

  In this operating state C, when the master unit 100 ″ detects that the main power SW 122 is turned off (C-S25) based on the cutoff of the driving power source, the operating state G is replaced with the operating state C in the state storage area. Is updated and stored, and the processing corresponding to the operation state G described above is performed. Power supply from the main power supply SW 122 to the power supply in the parent device 100 ″ is performed using the backup power supply 121.

  Further, in the operating state C, the master unit 100 ″ detects that the remote control power source SW 126 of the remote control unit 124 has been turned off (C-S26) by detecting a power off signal input via the remote control signal input I / F 118. Then, the operating state E is updated and stored instead of the operating state C in the state storage area, and the processing corresponding to the operating state E described above is performed.

  Further, in the operating state C, the parent device 100 ″ transmits that the child device 200 ″ is turned on (C-S27), and is transmitted from the child device 200 ″ based on the turning-on operation of the child device power SW 222 by the user. When detected by reception of the ON operation signal of the slave unit power supply SW 222, the operating state B is updated and stored in the state storage area instead of the operating state C, processing corresponding to the operating state B is performed, and the working state of the operating state B An update signal is transmitted from the wireless transmission / reception means 110 to the child device 200 ″, and the state storage area of the child device 200 ″ is updated and stored in the operation state B.

<Operating state B>
As described in the operation state D, the operation state B is a state in which the television broadcast channel that is being viewed on the master unit 100 ″ by the slave unit 200 ″ is continuously viewed (D-S11 to D-S15). This corresponds to the operating state of the master unit 100 ″ and the slave unit 200 ″ when the remote control power source SW 126 of the remote control unit 124 of the master unit 100 ″ is turned on (D-S24).

  Further, as described in the operation state C, the operation state B is a state in which the television broadcast channel of the slave unit 200 ″ that has been interrupted from the continuous viewing is being continuously viewed by the master unit 100 ″ (C -S11 to C-S15), which corresponds to the operating state of the parent device 100 "and the child device 200" when the child device power supply SW222 of the child device 200 "once turned off is turned on again (C-S27). .

  In the operating state B, the base unit 100 ″ supplies drive power from the power control unit 120 to each part of the base unit 100 ″, and the signal switching unit 106 receives video signals and audio of the television broadcast channel. A signal is instructed to be supplied to both the signal processing unit 108, the display unit 112, and the speaker 114.

  Thus, in the case where the television broadcast channel that has been viewed on the parent device 100 ″ is continuously viewed on the slave device 200 ″ according to the previous operation state D, the processing corresponding to this operation state B is executed. Thus, the video and audio of the television broadcast channel being viewed while being viewed by the display unit 212 and the speaker 214 of the slave unit 200 ″ are also output from the display unit 112 and the speaker 114 of the master unit 100 ″. (B-S11 to B-S15B), and the video can be viewed on the display unit 112 and the speaker 114 of the parent device 100 ″.

  As a result, even when the user is viewing (continuous viewing) the television broadcast using the slave unit 200 ″, the user is in the operation stop state by turning on the remote control power SW 126 of the remote control operation unit 124. By operating the display unit 112 and the speaker 114 of the parent device 100 ″, the same television broadcast is performed on both the display unit 112 and the speaker 114 of the parent device 100 ″ and the display unit 212 and the speaker 214 of the child device 200 ″. You can watch channel video and audio.

  Further, in the parent device 100 ″, even when the parent device 100 ″ continues to view the television broadcast channel of the child device 200 ″ that has previously stopped continuous viewing due to the previous operation state C. By executing the processing corresponding to this operation state B, the video and audio of the television broadcast channel being viewed by the display unit 112 and the speaker 114 of the parent device 100 ″ are converted into the display unit 212 and the speaker 214 of the child device 200 ″. (B-S11 to B-S15B) and can be viewed through the display unit 112 and the speaker 114 of the parent device 100 ″.

  As a result, even when the user continuously watches the television broadcast channel of the slave unit 200 ″ for which continuous viewing has been interrupted first on the master unit 100 ″, the user turns on the slave unit power supply SW 222. Thus, the video and audio of the same television broadcast channel can be viewed on both the display unit 112 and the speaker 114 of the parent device 100 ″ and the display unit 212 and the speaker 214 of the child device 200 ″.

  In the operation state B described above, the master unit 100 ″ determines whether the main power supply SW122 is turned off (B-S25), whether the remote control power supply SW126 of the remote controller 124 is turned off (B-S26), or by the user. It is monitored whether or not the slave unit power SW 222 of the slave unit 200 ″ is turned off again and the slave unit power source SW 222 off operation signal is received from the slave unit 200 ″ (B-S28).

  Then, when the parent device 100 ″ detects that the child device power supply SW 222 of the child device 200 ″ is turned off again based on the reception of the off operation signal from the child device 200 ″ (B-S28), the parent device 100 ″ enters the state storage area. The operating state C is updated and stored in place of the operating state B, and processing corresponding to the operating state C described above is performed.

  Further, when the master unit 100 ″ detects that the main power supply SW 122 is turned off (B-S25), for example, based on the cutoff of the drive power supply to the control unit 116 itself, the television that the user has watched until just before is displayed. Viewing information such as channel selection information of the broadcast channel is updated and stored in the viewing information storage area. The master unit 100 ″ updates and stores the operating state H in place of the operating state B in the state storage area. A corresponding process is performed, and an operation state update signal (operation state H) is transmitted and output to the slave unit 200 ″ via the wireless transmission / reception means 110. The power supply from the operation of turning off the main power supply SW122 to the backup power supply 121. Accordingly, the slave unit 200 receiving the transmission signal of the video / audio signal of the television broadcast channel transmitted from the master unit 100 ″. In, so that the status information from the base unit 100 "(operating state H) is received via the wireless transmitting and receiving means 210. Then, the slave unit 200 ″ stores the operating state H in the state storage area, and displays an error message indicating that the power source of the master unit 100 ″ has been turned off or the transmission signal from the master unit 100 ″ has not arrived. Or generated by the audio output unit 214 for output.

  Further, when the master unit 100 ″ detects that the remote controller power supply SW 126 of the remote controller 124 is turned off (B-S26) by the input of the power supply off signal via the remote controller signal input I / F 118, the master unit 100 ″ stores the state memory. The operating state D is updated and stored in the area in place of the operating state B, processing corresponding to the operating state D is performed, and an operation permanent update signal of the operating state D is transmitted to the slave unit 200 ″. Note that, as described above, the operation state D is a standby state in which only the base unit output unit including the display unit 206 and the speaker 208 is deactivated. That is, if the remote control power SW 126 of the remote controller 124 is turned off while both the master device 100 ″ and the slave device 200 ″ are viewing the video and audio of the same television broadcast channel, the master device 100 ″. Returns to the first standby state of the operating state D in which the original slave device 200 ″ was watching the television broadcast, and the television broadcast viewing by the slave device 200 ″ can be continued thereafter.

<Viewing effect>
Next, viewing of a television broadcast using the parent-child television receiver of this embodiment having the above-described viewing control configuration will be described.

  When the parent device 100 ″ and the child device 200 ″ are both in the power-off state, when the parent device 100 ″ and the child device 200 ″ are in the normal state when not in use, that is, in the operation state G of FIG. When the main power supply SW 122 is turned on, normal television broadcasting can be viewed using the display unit 112 of the parent device 100 shown in the operating state A. When a normal television broadcast is viewed using the display unit 112 of the parent device 100 ″, the signal processing means 108 for communicating with the child device 200 ″ in the parent device 100 ″ is the child device. Since 200 "is in a power-off state (a state in which the handset power supply SW 222 is not turned on), the operation is stopped and power consumption can be reduced.

  A place where the user cannot visually recognize the display unit 112 of the parent device 100 ″ from the place where the parent device 100 ″ is placed during viewing of a normal television broadcast using the display unit of the parent device 100 ″. If the mobile device power source SW222 is turned on, the mobile device power supply SW222 is turned on, the mobile device 200 "is removed from the cradle 300" and carried to the destination. As described in the operation state D, the television broadcast channel that was being viewed using can be continuously viewed at the destination by using the display unit 212 and the speaker 214 of the slave device 200 ″. On the other hand, since the display unit 112 and the speaker 114 of the master unit 100 ″ that is not used for viewing are automatically deactivated, power consumption can be saved. There.

  Further, even if the user stops the continuous viewing of the television broadcast using the slave unit 200 ″ at the destination by turning off the slave unit power supply SW 222 of the slave unit 200 ″, as described in the operation state E, Since the wireless transmission / reception means 110 continues to function in the parent device 100 ″, viewing by the child device 200 ″ can be resumed by turning on the child device power SW 222 of the child device 200 ″.

  Further, in this manner, when the child device 200 ″ is detached from the operation cradle 300 ″ and the child device power supply SW222 is turned off, the user performs a viewing operation of the parent device 100 ″ (the remote control power supply SW126 is turned off). When the on-operation is performed, as described in the operation state C, the television broadcast using the display unit 112 of the parent device 100 "can be viewed, so the child device 200" is placed at the destination. Even in such a case, the viewing of the television broadcast using the display unit 112 of the parent device 100 ″ is not hindered.

  In the parent-child television receiver according to the present embodiment, for example, a user who is watching using the slave device 200 ″ is different from a user who is watching using the master device 100 ″, and one user is the parent device 100 ″. Alternatively, when one of the slave devices 200 ″ is watching a television broadcast, the other user performs an operation to start viewing on either the master device 100 ″ or the slave device 200 ″ that is not currently used for viewing. When it is performed, as described in the operation state B, the parent device 100 ″ and the child device 200 ″ can view the same television broadcast at different places at the same time.

  Even when the main power supply SW 122 of the parent device 100 ″ is accidentally turned off while watching the television broadcast using the child device 200 ″, as described in the operation states D and B, Since the fact is notified at 200 ″, the user who has watched using the slave device 200 ″ can easily perceive the abnormality.

  Further, as described above, since the master unit 100 ″ can control the operation of each part of the master unit according to the operating state, the power consumption can be efficiently reduced according to the operating state.

  In the above description, the viewing switching between the parent device 100 ″ and the child device 200 ″ has been described by taking the case of viewing a television broadcast as an example. However, the video / audio signal input to the external device signal input I / F 104 is described. When the reproduction is set by the operation of the input media selection SW 130 on the remote controller 124, the control means 116 replaces the tuner 102 between the parent device 100 ″ and the child device 200 ″ with respect to the external device signal input I / F 104. The same operation control is performed for viewing switching.

  As described in each of the above embodiments, the configuration of the parent-child AV device, the parent device, the child device, and the child device storage device of the present invention can be variously modified, and the configuration of the above-described embodiment. It is not limited to. For example, in the above-described embodiment, when the parent device is operated for viewing later during viewing by the child device, the same content can be viewed by both the child device and the parent device. It is also possible to adopt a configuration in which viewing can be preferentially performed only by.

  In the above-described embodiment, the present invention has been described with reference to an example of a parent-child AV device capable of viewing video or video and audio. For example, audio information such as CS / BS radio broadcasting, music CD (Compact Disc), etc. Used for audio output of recording media and the like for AV devices that can view only audio (that is, can be heard), AV devices that receive and display text data signals as video data, such as text broadcasting and data broadcasting, etc. However, the parent-child AV device, parent device, child device, and child device storage device of the present invention are also applicable.

1 is a configuration diagram of a parent-child AV device according to an embodiment of the present invention. It is a block diagram of the Example of the main | base station and the cradle in the parent-child television receiver as an example of the parent-child AV apparatus by one embodiment of this invention. It is a block diagram of the Example of the subunit | mobile_unit in the parent-child type television receiver as an example of the parent-child type AV apparatus by one embodiment of this invention. FIG. 4 is a state transition table of the parent device and the child device shown in FIGS. 2 and 3. FIG. It is a block diagram of one Example of the cradle in the parent-child AV apparatus by another embodiment of this invention. It is a block diagram of the parent-child AV apparatus by another embodiment of this invention. It is a block diagram of the subunit | mobile_unit applied to the parent-child type AV apparatus by this Embodiment. 5 is a state transition table of a parent device and a child device in the parent-child AV device according to the present embodiment.

Explanation of symbols

1 Parent-child AV device 100, 100 "Master device 102 Tuner 103 Antenna 104, 304 External device signal input I / F
106, 306 Signal switching means 108, 308 Signal processing means 110, 310 Wireless transmission / reception means 112 Display unit 114 Speaker 116, 316 Control means 118 Remote control signal input I / F
120, 320 Power control means 122 Main power SW
124 Remote Controller 200, 200 "Slave Unit 210 Wireless Transmission / Reception Unit 208 Signal Processing Unit 212 Display Unit 214 Speaker 216 Control Unit 220 Power Control Unit 222 Slave Unit Power Supply SW
250 Rechargeable battery 300, 300 "Cradle 340 Charging means 342 Attachment / detachment detecting means 344 External device signal output I / F

Claims (13)

A parent-child AV device that supplies an information signal generated by a parent device to a child device and reproduces the information signal by the child device,
The base unit is
Generating means for generating an information signal;
A master output means for outputting an information signal generated by the generating means;
Transmitting means for transmitting the information signal generated by the generating means to a portable slave unit;
Attaching / detaching detecting means for detecting attachment / detachment of the slave unit with respect to a predetermined storage unit;
Corresponding to the removal of the slave unit by the attachment / detachment detection unit, the information signal generated by the generation unit is started to be supplied to the slave unit via the transmission unit . Supply control means for controlling the information signal to stop supplying to the slave unit via the transmission means ;
The slave is
Receiving means for receiving an information signal transmitted from the base unit;
Slave unit output means for outputting the information signal received by the receiving means;
An operation control means for controlling an output action by the receiving means and the slave unit output means according to the attachment / detachment state with respect to the storage section;
When the slave unit is removed from the storage unit during the output of the information signal by the master unit output means, the slave unit outputs the information signal output from the master unit output unit of the master unit. A parent-child AV device characterized in that it is output from the means. A parent device of a parent-child AV device that supplies an information signal to a child device and reproduces the information signal by the child device,
Generating means for generating an information signal;
A master output means for outputting an information signal generated by the generating means;
Transmitting means for transmitting the information signal generated by the generating means to a portable slave unit;
Attaching / detaching detecting means for detecting attachment / detachment of the slave unit with respect to a predetermined storage unit;
Corresponding to the removal of the slave unit by the attachment / detachment detection unit, the information signal generated by the generation unit is started to be supplied to the slave unit via the transmission unit . Supply control means for controlling the information signal to stop supplying to the slave unit via the transmission means ;
The supply control means supplies the information signal generated by the generation means to the child device via the transmission means only when the child device is detached from the storage unit. Master unit of the AV system. The supply control means includes
By detecting the removal of the slave unit from the storage unit by the attachment / detachment detection unit, the output of the information signal generated by the generation unit by the master unit output unit is stopped, while the output of the slave unit by the attachment / detachment detection unit is stopped. 3. The parent-child AV according to claim 2, further comprising: a parent device output means control section for resuming output of the information signal generated by the generation means by the parent device output means upon detection of attachment to the storage section. The master unit of the device. The master unit output unit control unit is configured to output the master unit output unit when an output start instruction is supplied from an operation unit provided in advance in the master unit while the output of the information signal by the master unit output unit is stopped. 4. The parent device of the parent-child AV apparatus according to claim 3 , wherein the output of the information signal is resumed. The generation unit, the parent machine child type AV apparatus according to any one of claims 2 to 4, characterized in that to generate the information signal consisting of video signals, audio signals, or video and audio signals. The predetermined storage unit of the slave unit is configured by a separate housing from the base unit casing, the attachment / detachment detection unit is disposed in the storage unit, and the supply control unit disposed in the base unit casing is connected to the supply control unit. parent device child type AV device according to claim 2 or 4 or characterized in that it is a signal connection. The storage unit is provided with charging means for charging a rechargeable battery provided in the slave unit when the slave unit is mounted.
5. The parent device of the parent-child AV device according to claim 2, wherein the parent device is an AV device. A child device of a parent-child AV device that reproduces an information signal supplied from the parent device,
Receiving means for receiving an information signal transmitted from the base unit;
Slave unit output means for outputting the information signal received by the receiving means;
An operation control means for controlling the operation of the receiving means and the slave unit output means according to a predetermined attachment / detachment state with respect to the storage section;
The operation control means sets the slave unit output means in the output stop state in the storage state with respect to the storage unit, and cancels the stop state in the detached state from the storage unit, and outputs the reception unit and the slave unit output. A slave unit of a parent-child AV apparatus, characterized by activating means. A child device of a parent-child AV device that reproduces an information signal supplied from the parent device,
Receiving means for receiving an information signal transmitted from the base unit;
Slave unit output means for outputting the information signal received by the receiving means;
An input unit that inputs an operation instruction for the master unit and switches and sets the slave mode or the remote control mode;
Transmitting means for transmitting an operation instruction input by the input means to the master unit;
Depending on a predetermined attachment / detachment state with respect to the storage unit and a mode state switched and set by the input unit, the reception unit and the slave unit output unit operate, and the base unit via the transmission unit Operation control means for controlling the transmission of the operation instruction of
In the storage state with respect to the storage unit, the operation control unit stops the output of the reception unit and the slave unit output unit, and from the storage unit when the slave unit mode is set by the input unit. The slave unit of the parent-child AV apparatus is characterized in that in the detached state, the stop state is canceled and the receiving unit and the slave unit output unit are activated. 10. The operation control means stops operation of the receiving means and the slave unit output means when the remote control mode is switched and set instead of the slave mode by the input means. The child unit of the parent-child AV device. The rechargeable battery for driving each said part in the removal state with respect to the said accommodating part is provided, The said accommodating part with which the charging means of the said rechargeable battery was equipped is detachably accommodated. A child unit of the parent-child AV device according to any one of the above. A child device storage device for detachably storing and holding a portable child device of a parent-child AV device,
Attachment / detachment detection means for detecting attachment / detachment of the slave unit;
A charging means for charging a rechargeable battery provided in the slave unit stored and held;
An external signal input unit to which an information signal supplied from an external device is input;
First transmission means for transmitting an information signal from the external device to a parent device output device provided in the parent device;
Second transmission means for transmitting an information signal from the external device to a slave unit output device provided in the slave unit;
Supply that selectively supplies the information signal supplied to the external signal input unit to the parent device output device or the child device output device in accordance with the detection of attachment / detachment of the child device by the attachment / detachment detection means Control means,
The supply control means transmits an information signal from the external device only to the parent device output device via the first transmission means in the attachment detection state of the child device by the attachment / detachment detection means, A parent-child AV apparatus, wherein an information signal from the external device is transmitted only to the child device output device via the second transmission device in a state where the child device is detected to be removed by the attachment / detachment detection device. Handset storage device. A child device storage device for detachably storing and holding a portable child device of a parent-child AV device,
Attachment / detachment detection means for detecting attachment / detachment of the slave unit;
A charging means for charging a rechargeable battery provided in the slave unit stored and held;
An external signal input unit to which an information signal supplied from an external device is input;
First transmission means for transmitting an information signal from the external device to a parent device output device provided in the parent device;
Second transmission means for transmitting an information signal from the external device to a slave unit output device provided in the slave unit;
Supply control means for controlling the supply of the information signal supplied to the external signal input unit to the master unit output device or the slave unit output device in accordance with the detection of attachment / detachment of the slave unit by the attach / detach detection unit And
The supply control means transmits an information signal from the external device only to the parent device output device via the first transmission means in the attachment detection state of the child device by the attachment / detachment detection means, In the removal detection state of the slave unit by the attachment / detachment detection means, in addition to the master unit output device, an information signal from the external device is also transmitted to the slave unit output device via the second transmission unit. A slave unit storage device for a parent-child AV device.

Images