JP5294552B2 - Video display device, recording / playback device - Google Patents

Description

  The present invention relates to a video display device (such as a television receiver) and a recording / playback device (such as a hard disk recorder) that perform communication through signal transmission means compliant with the High Definition Multimedia Interface (HDMI) standard.

In general, a recent recording / playback apparatus acquires electronic program guide (EPG) information through television broadcasting or the Internet, and when the broadcast program (video and audio) is digitally recorded in a storage unit such as a hard disk drive, the recorded program is recorded. Is also provided with a function of storing recorded program information in the storage unit. The recorded program information includes, for example, various types of information such as the broadcast date and time of the recorded program, the channel, the program category, the program content, and the performers.
The recorded program information stored in the recording / reproducing apparatus in this way is included in a selection menu image for selecting a recorded program to be reproduced. This selection menu video is displayed on the video display unit of the television receiver connected to the recording / playback apparatus by a signal transmission cable. At this time, in order to display the selected menu video, the user switches on the TV and the recording / playback device to ON, and then switches the video input source to the recording / playback device by so-called input switching on the TV side. In the above, there is a problem that it is necessary to operate the recording / playback apparatus so that the selected menu image is output by using the menu key, the cross key, and the like, which is troublesome.
On the other hand, for example, Patent Document 1 discloses a recording / playback apparatus (digital recording apparatus) that supplies recorded program information as video when the power is turned on. In this configuration, the user views the recorded program information included in the video supplied from the recording / playback apparatus to the TV by turning on the TV and the recording / playback apparatus and then performing an input switching operation on the TV side. be able to.
JP 2005-533334 A

However, even if the technique of Patent Document 1 is used, in order for the user to view the recorded program information, it is troublesome to turn on the power of the recording / playback apparatus or perform an input switching operation on the television side. The problem remains.
In addition, in the conventional apparatus such as Patent Document 1, since only the video from the recording / playback apparatus that is the input source by the input switching operation can be displayed, there is no relation between the recorded program information and the recorded program information. There is a problem that video cannot be displayed simultaneously. For example, a television broadcast and the recorded program information can be displayed at the same time, or when a plurality of recording / playback apparatuses are connected, a video from any one of the recording / playback apparatuses and a recorded program of another recording / playback apparatus Information cannot be displayed at the same time.
Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to record a recorded program related to a recorded program recorded in a predetermined period among recorded programs recorded in the recording / playback apparatus. Provided are a video display device and a recording / playback device capable of displaying the recorded program information while displaying a video not related to the recorded program information while simplifying a user operation for displaying information. It is in.

In order to achieve the above object, the present invention includes a video display unit, and includes a TMDS signal transmission line for transmitting a signal including a video signal and a CEC signal transmission line compliant with the CEC standard. The video display device is configured to be communicable with one or a plurality of recording / playback devices by the HDMI signal transmission means to be performed, and is configured to include each component shown in the following (1) and (2).
(1) Recorded program information relating to a recorded program recorded in a predetermined period among recorded programs recorded in the storage unit of the recording / playback device on the condition that the video display device is powered on, Recorded program information acquisition means for acquiring from the recording / playback apparatus through the CEC signal transmission line of the HDMI signal transmission means.
(2) Recorded program information display control means for displaying the recorded program information acquired by the recorded program information acquisition means on the video display unit.
Here, the predetermined period is, for example, a period from when the video display device is turned on or off until the next time the video display device is turned on, or recorded in the storage unit of the recording / playback device. This is the period from when the recorded program was last accessed until the video display device is turned on. The recorded program information includes a program name, broadcast date / time, broadcast channel, genre, and the like.
Here, the recorded program information acquisition means, for example, requests the recording / playback apparatus to transmit the recorded program information through the CEC signal transmission line, and returns the recorded program information through the CEC signal transmission line accordingly. It is conceivable that the program information is acquired.

  The video display device according to the present invention relates to a recorded program recorded in a predetermined period among recorded programs recorded in the storage unit of the recording / playback device on condition that the video display device is powered on. Recorded program information is acquired from the recording / playback apparatus through the CEC signal transmission line of the HDMI signal transmission means and displayed on the video display unit. As described above, in the video display device, since the recorded program information is acquired through the CEC signal transmission line, it is possible to display the recorded program information at the same time while displaying a video unrelated to the recorded program information. It becomes. In addition, the user can display the recorded program information on the video display unit of the video display device only by performing a simple operation of turning on the power source of the video display device.

Further, it is conceivable that each component shown in the following (3) and (4) is provided.
(3) Recorded program selection means for selecting the recorded program in accordance with an operation input through a predetermined operation unit in a state where the recorded program information is displayed on the video display unit.
(4) Processing instruction means for instructing the recording / playback apparatus through the CEC signal transmission line to execute processing for the recorded program selected by the playback program selection means.
Here, the process instructing execution by the process instruction means to the recording / reproducing apparatus is, for example, a reproduction process or a deletion process of the recorded program.
The video display device configured as described above is a reproduction process or a deletion process for the recorded program selected in accordance with an operation input through a predetermined operation unit in a state where the recorded program information is displayed on the video display unit. Execute. Thereby, the operability by the user can be improved.

  By the way, when there are a plurality of recording / playback apparatuses connected to the video display apparatus, a plurality of the recorded program information is acquired from the plurality of recording / playback apparatuses by the recorded program information acquisition means. Therefore, in such a case, it is conceivable that the recorded program information display control means organizes the plurality of recorded program information and displays them on the video display unit. As a result, the user can grasp the recorded programs in each of the plurality of recording / playback apparatuses collectively by using the video display unit and the operation unit (remote controller, etc.) of the video display device as a man-machine interface, and a part of the recorded program. Can be selected to instruct the recording / playback apparatus to perform predetermined processing (such as playback processing or deletion processing).

In addition, a video display having a video display unit is provided by an HDMI signal transmission means including a TMDS signal transmission line for transmitting a signal including a video signal and a CEC signal transmission line in conformity with the CEC standard and performing signal transmission in conformity with the HDMI standard. A recording / playback apparatus configured to be communicable with the apparatus and including the components shown in the following (5) and (6) is regarded as the present invention that achieves the above-described object. Can do.
(5) Power-up detection means for detecting a power-up of the video display device.
(6) On the condition that the power-on detection of the video display device is detected by the power-up detection means, during a predetermined period set in advance in the recorded program recorded in the storage unit of the recording / playback device Recorded program information display output means for outputting recorded program information relating to a recorded program to the video display device through a CEC signal transmission line of the HDMI signal transmission means.
Specifically, the recorded program information display output means transmits the recorded program information to the video display device by using, for example, an OSD display command of a communication protocol defined by the CEC standard of the HDMI standard, thereby displaying the video display The recorded program information is displayed on the video display unit of the apparatus.
Here, the predetermined period is, for example, a period from when the video display device is turned on or off until the next time the video display device is turned on, or recorded in the storage unit of the recording / playback device. This is the period from when the recorded program was last accessed until the video display device is turned on.
The recorded program information includes a program name, broadcast date / time, broadcast channel, genre, and the like.

  The recording / playback apparatus according to the present invention configured as described above is set in advance among the recorded programs recorded in the storage unit of the recording / playback apparatus on condition that the power-on of the video display apparatus is detected. Recorded program information relating to a recorded program recorded during a predetermined period is output to the video display device through a CEC signal transmission line of the HDMI signal transmission means. In this way, the recording / playback apparatus outputs the recorded program information to the video display device through the CEC signal transmission line, so that the video display device displays the video unrelated to the recorded program information while displaying the video. Recorded program information can be displayed simultaneously. In addition, the user can display the recorded program information on the video display unit of the video display device only by performing a simple operation of turning on the power source of the video display device.

  According to the present invention, recorded program information relating to a recorded program recorded in a predetermined period among recorded programs recorded in the storage unit of the recording / playback device on condition that the video display device is powered on. Is transmitted from the recording / playback device to the video display device through the CEC signal transmission line of the HDMI signal transmission means and displayed on the video display unit, so that the video recording unit displays the video unrelated to the recorded program information. Program information can be displayed simultaneously. In addition, the user can display the recorded program information on the video display unit of the video display device only by performing a simple operation of turning on the power source of the video display device.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that the present invention can be understood. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.
1 is a block diagram of a recording system Z including a television receiver X and a recording / playback apparatus Y according to an embodiment of the present invention, FIG. 2 is a diagram showing an example of a data structure of recorded program information, and FIG. FIG. 4 is a flowchart for explaining an example of a procedure of a recorded program display process in the recording system Z, and FIG. 4 is a diagram showing an example of a display screen by the recorded program display process.
First, the configuration of a recording system Z including a television receiver X and a recording / playback apparatus Y according to an embodiment of the present invention will be described using the block diagram shown in FIG.
As shown in FIG. 1, a recording system Z according to an embodiment of the present invention includes a television receiver X (an example of a video display device) provided with a video display unit 5 and a plurality of video recording / playback functions (in FIG. 1). This is a system configured to be able to communicate with two recording / playback apparatuses Y via an HDMI interface W which is a signal transmission unit compliant with the HDMI standard.

Here, the HDMI interface W includes a TMDS line 41 (corresponding to a TMDS signal transmission line) for transmitting a video signal and an audio signal (both are digital signals), and a CEC line compliant with the CEC standard which is an optional standard of the HDMI standard. 42 (corresponding to a CEC signal transmission line). The TMDS line 41 is composed of a plurality of signal lines, and the TMDS line 41 and the CEC line 42 are apparently configured as one HDMI cable 40. The HDMI interface W can realize simple wiring and signal transmission without deterioration. Further, the HDMI interface W transmits unencoded (uncompressed) video signals and audio signals (transmitted by the baseband method), and thus is not affected by the difference in the signal encoding method between devices. Excellent extensibility and durability (possibility of connection with equipment that adopts a new encoding method in the future).
Further, the HDMI interface W can transmit other information (control information and the like) through the CEC line 42 in addition to the transmission of video signals and audio signals through the TMDS line 41. The HDMI interface W can transmit the video signal and the audio signal through the TMDS line 41 only in one direction, but can transmit the information through the CEC line 42 in both directions.
The recording system Z is characterized in that, when the power of the television receiver X is turned on, the program is recorded during a predetermined period among the programs (recorded programs) recorded by the recording / playback apparatus Y. Recorded program information relating to the recorded program is transmitted from the recording / playback apparatus Y to the television receiver X through the CEC line 42 of the HDMI interface W and displayed on the video display unit 5. This will be described in detail later.

[TV receiver X]
As shown in FIG. 1, a television receiver X according to an embodiment of the present invention includes a tuner 1, two HDMI receiving units (indicated as HDMI-RX in the figure) 2xa, 2ya, a CEC interface 2xb, and a video switching circuit. 3, video processing circuit 4, video display unit 5, control circuit 6, remote control interface (I / F) circuit 7, remote control 8, sub MPU 9, audio switching circuit 10, audio processing circuit 11, amplifier 12, and speaker 13 etc. Configured.

The tuner 1 extracts (selects) a broadcast channel signal designated by the control circuit 6 from a broadcast signal such as a terrestrial broadcast signal or a BS satellite broadcast signal, and detects a video signal and a signal by detecting the extracted signal. The audio signal is taken out, and the video signal and the audio signal are transmitted to the video switching circuit 3 and the audio switching circuit 10, respectively.
The HDMI receiving units 2xa and 2ya are signal transmission interfaces compliant with the HDMI standard. The HDMI receiving units 2xa and 2ya input video signals and audio signals from an external device (here, the recording / reproducing device Y) through the TMDS line 41 in a baseband manner, and input them to the video switching circuit 3 and the audio. The data is transmitted to each switching circuit 10.
The CEC interface 2xb is a signal transmission interface compliant with the CEC standard in the HDMI standard. The CEC interface 2xb transmits / receives information to / from an external device (here, the recording / playback device Y) through the CEC line 42. The direct transmission destination of the reception information and the direct supply source of the transmission information of the CEC interface 2xb are the sub MPU 9.
In the example shown in FIG. 1, the television receiver X includes two HDMI receiving units 2xa and 2ya corresponding to the two recording / reproducing apparatuses Y, respectively. Further, only one CEC interface 2xb is provided for the two recording / playback apparatuses Y.
The video switching circuit 3 inputs video signals from the tuner 1 and the HDMI receiving units 2xa and 2ya, and selects any one of the video signals according to an instruction from the control circuit 6. Output.

The video processing circuit 4 performs various signal processing on the video signal output from the video switching circuit 3. For example, the video processing circuit 4 has an OSD function that superimposes (superimposes) the video of the information designated by the control circuit 6 on the video signal from the video switching circuit 3.
The video display unit 5 includes a liquid crystal display unit including a liquid crystal panel and a liquid crystal driver, and displays video based on the video signal output from the video processing circuit 4.

The audio switching circuit 10 receives the audio signal from the tuner 1 and the audio signals from the HDMI receiving units 2xa and 2ya, and receives an arbitrary one of the audio signals from the control circuit 6. Is output to the sound processing circuit 11 in accordance with the instruction.
The audio processing circuit 11 performs equalization processing, D / A conversion processing, and the like on the signal output from the audio switching circuit 10.
The amplifier 12 performs a process (volume adjustment process) for amplifying or attenuating the audio signal processed by the audio processing circuit 11 in accordance with an instruction from the control circuit 6, and outputs it to the speaker 13.

The control circuit 6 includes an MPU 6a which is an arithmetic means, a ROM 6b (EPROM) which is a storage means in which a control program executed by the MPU 6a is stored in advance, an EEPROM 6c which stores various information read and written in processing executed by the MPU 6a, etc. And the entire television receiver X is controlled. The following processing and functions of the control circuit 6 are realized by the MPU 6a executing a program stored in the ROM 6b.
The control circuit 6 has a function of storing the date and time in the EEPROM 6c when the power of the television receiver X is turned on (started up) or turned off (turned down). The stored date and time is used for recording information display processing (see the flowchart of FIG. 3, step S101) described later.
The remote controller 8 is a remote controller that outputs a radio signal (for example, an infrared signal) for controlling the operation of the television receiver X, and includes an operation input unit (not shown), a radio signal output circuit, and the like. .
The operation input unit is an operation unit for inputting information, such as a channel selection key and a volume control key, and a signal corresponding to the operation content is transmitted to the wireless signal output circuit. The wireless signal output circuit converts a signal transmitted from the operation input unit (that is, a control signal for the operation of the television receiver X) into a wireless signal (for example, an infrared signal), and the remote controller 8 To the TV main body side.
On the other hand, the remote control interface circuit 7 receives a radio signal (such as an infrared signal) transmitted from the remote controller 8 and converts it into an electrical signal, thereby acquiring various information transmitted from the remote controller 8. The acquired information is transmitted to the sub MPU 9.
The sub MPU 9 is a microcomputer that executes a process of relaying information transmission between the control circuit 6, the remote control interface circuit 7 and the CEC interface 2xb.

[Recording / playback device Y]
As shown in FIG. 1, a recording / playback apparatus Y according to an embodiment of the present invention includes a tuner 21, a recording / playback circuit 22, an HDD 23 (hard disk drive), an HDMI transmission unit 25a, a CEC interface 25b, a control circuit 24, and a remote control interface. This is a so-called hard disk recorder configured to include a circuit 26, a remote controller 27, a sub MPU 28, and the like.
Here, the tuner 21, the remote controller interface circuit 26, the remote controller 27, and the sub MPU 28 are the same as the tuner 1, the remote controller interface circuit 7, the remote controller 8, and the sub MPU 9 in the television receiver X, respectively. It is.

The recording / playback circuit 22 executes broadcast program recording processing and recorded program playback processing. That is, the recording / playback circuit 22 executes a recording process in which the broadcast signal (video signal and audio signal) of the program extracted by the tuner 21 is compressed and recorded in the HDD 23. Further, the recording / reproducing circuit 22 executes a reproducing process for outputting to the outside through the HDMI transmitting unit 25a while decoding the data of the broadcast program recorded (recorded) on the HDD 23.
Further, the recording / playback circuit 22 has an EPG acquisition function for extracting EPG information (electronic program guide information) contained therein from the broadcast signal of the program extracted by the tuner 21 and recording it in the HDD 23. Yes. The EPG information includes a process for generating a reserved program selection menu screen in the recording reservation process, a program title recorded in the HDD 23 in association with a video signal and an audio signal of a recorded program (recorded program), and the like. It is used when executing processing for specifying broadcast date and time, channel, and the like.

The HDMI transmitting unit 25a (denoted as HDMI-TX in the figure) is a signal transmission interface compliant with the HDMI standard. The HDMI transmitting unit 25a outputs a video signal and an audio signal through the TMDS line 41 to an external device (here, the television receiver X) by a baseband method.
Similar to the CEC interface 2xb in the television receiver X, the CEC interface 25b is a signal transmission interface compliant with the CEC standard in the HDMI standard. The CEC interface 25b transmits / receives information to / from an external device (here, the television receiver X) through the CEC line 42. The direct transmission destination of the reception information and the direct supply source of the transmission information of the CEC interface 25b are the sub MPU 28.

Further, in the recording / reproducing apparatus Y, the HDMI transmitting unit 25a and the CEC interface 25b, the sub MPU 28, and the remote control interface circuit 26 that constitute a part of the HDMI interface W are connected to the recording / reproducing apparatus Y. When connected to a commercial power supply, it is always energized. On the other hand, the tuner 21, the control circuit 24, the recording / playback circuit 22, the HDD 23, and the like are in an operating state (power supply) when the recording / playback apparatus Y is connected to a commercial power source. And a standby state (power supply falling state) in which the power to them is cut off. The switching between the two states is realized by the sub MPU 28 performing switching control of a power switch (not shown).
That is, the sub-MPU 28 has received a power key operation signal from the remote control 27 through the remote control interface circuit 26 when the recording / playback apparatus Y is in the standby state, or from the television receiver X. When it is detected that any command addressed to the device has been received through the CEC interface 25b, the recording / reproducing device Y is switched from the standby state to the operating state by switching the energization switch from the OFF state to the ON state ( That is, the power is turned on).
In addition, the sub MPU 28 has received a power key operation signal from the remote controller 27 through the remote control interface circuit 26 when the recording / playback apparatus Y is in the operating state, or from the television receiver X. When it is detected that a stop command has been received through the CEC interface 25b, the recording / playback apparatus Y is switched from the operating state to the standby state by switching the power switch from the ON state to the OFF state (that is, the power source is turned on). Can be lowered).
Thereby, the recording / playback apparatus Y is switched between the operation state and the standby state by remote control from the remote controller 27 or the television receiver X.

The control circuit 24 includes an MPU 24a which is an arithmetic means, a ROM 24b (EPROM) which is a storage means in which a control program executed by the MPU 24a is stored in advance, an EEPROM 24c which stores various information read and written in processing executed by the MPU 24a, and the like. And controls the entire recording / playback apparatus Y. The processing and functions of the control circuit 24 described below are realized by the MPU 24a executing a program stored in the ROM 24b.
In addition, the control circuit 24 of the recording / reproducing apparatus Y broadcasts the program (based on the EPG information recorded in the HDD 23 by the recording / reproducing circuit 22 and the program reservation information recorded in the HDD 23 in advance). It also has a scheduled recording function for performing scheduled recording of video and audio. Since the reserved recording function is a well-known function, detailed description thereof is omitted here.

Further, when the recording / playback circuit 22 records a broadcast program, the control circuit 24 associates the recorded program information related to the recorded program and stores it in the HDD 23.
FIG. 2 shows an example of the data structure of the recorded program information. As shown in FIG. 2, the recorded program information includes a program title d1, a broadcast channel d2, a broadcast date and time d3, a genre d4, and the like, which are program content information. The recorded program information shown here is only an example, and may include other information related to the recorded program.
As will be described later, in response to a request (instruction) from the television receiver X, the recording / playback apparatus Y records a recorded program recorded in a predetermined period of the recorded program information (see FIG. 2). Information is transferred (transmitted) to the television receiver X through the CEC line 42.

Next, an example of the procedure of the recorded program display process in the recording system Z will be described with reference to the flowchart shown in FIG. Here, S101, S102,... Shown below are processing procedures (steps) on the television receiver X side (left side in FIG. 3), and S201, S202,. This represents the identification code of the processing procedure (step) in the right side. Note that the processing on the television receiver X side shown in FIG. 3 is started when the power of the television receiver X is turned on.
The recorded program display process is a process executed by the television receiver X and the recording / reproducing apparatus Y while exchanging information through the CEC line 42 of the HDMI interface W. Hereinafter, the processing on the television receiver X side will be described first, followed by the processing on the recording / playback apparatus Y side.

First, the process on the television receiver X side in the recorded program display process will be described.
[Step S101]
When the power of the television receiver X is turned on, the control circuit 6 of the television receiver X until the power of the television receiver X is turned off until now (that is, until the next power is turned on). The process for determining the waiting period (an example of a predetermined period) is executed (S101). Specifically, as described above, the standby period is determined based on information regarding the date and time of power ON / OFF of the television receiver X stored in the EEPROM 6c.
Here, the standby period is not limited to a period from when the power of the television receiver X is turned off to when the power of the television receiver X is turned on next time. The period from when the power of the receiver X is turned on until the power of the television receiver X is turned on next time or when the recorded program recorded in the HDD 23 of the recording / reproducing apparatus Y is last accessed is described above. Another example is a period until the power of the television receiver X is turned on. Note that the standby period is set in advance by the user at an appropriate time or when the television receiver X is initially set. Further, instead of the waiting period, the recent days or months may be set as the predetermined period.

[Step S102]
In the subsequent step S102, the control circuit 6 sends a request command for requesting transmission of recorded program information related to the recorded program recorded during the standby period to each recording / playback apparatus Y through the CEC line 42. It transmits to (S102).
Note that communication control (information transmission and reception control) through the CEC line 42 in the television receiver X is performed by the CEC interface 2xb. Here, the request command is in accordance with a communication protocol defined by the CEC standard of the HDMI standard. Specifically, the request command is a combination of a so-called vendor command arbitrarily set in advance or a standard command of the CEC standard.

[Step S103]
Next, the control circuit 6 executes a process of receiving the recorded program information returned from each of the recording / playback apparatuses Y in response to a request for the recorded program information through the CEC line 42 (CEC signal transmission line). (S103). Here, the control circuit 6 that executes the processing of steps S102 and S103 is an example of recorded program information acquisition means.
At this time, in step S103, the control circuit 6 determines whether or not the recorded program information has been received from each of the recording and playback devices Y within a predetermined time after the transmission of the recorded program information request command. . When the control circuit 6 receives a notification of no recorded program (described later) from the recording / playback apparatus Y through the CEC line 42, the recorded program information is not received from the recording / playback apparatus Y. Determine.

[Steps S105 and S106]
When the control circuit 6 confirms that the recorded program information has not been received from one or more recording / playback apparatuses Y in step S103, the control circuit 6 shifts the processing to step S105. Then, the control circuit 6 causes the video display unit 5 to display an OSD message indicating that there is no recorded program recorded during the standby period (S105), and erases the OSD display being displayed after a predetermined time (S106). ), The recorded program display process is terminated.

[Steps S104 and 106]
On the other hand, when the control circuit 6 confirms that the recorded program information is received from one or more recording / playback apparatuses Y in step S103, the video of the recorded program selection menu v1 for displaying the recorded program information is displayed. (Screen) is generated, and the video is displayed on the video display unit 5 by OSD (S104). The OSD display being displayed is deleted after a predetermined time (S106), and then the recorded program display processing is terminated. Here, the control circuit 6 for executing such processing is an example of recorded program information display control means.
At this time, when a plurality of recorded program information is received from a plurality of the recording / playback apparatuses Y, the control circuit 6 organizes the plurality of recorded program information and generates a video of the recorded program selection menu v1. To do.
FIG. 4 shows an example of the OSD display screen of the recorded program selection menu v1. As shown in FIG. 4, the control circuit 6 provides the video display unit 5 with a list in which a plurality of recorded program information received from a plurality of recording / playback apparatuses Y is organized together with a video v0 that is already displayed. Display a list by display. Note that identification information (for example, model name, address, etc.) for identifying the recording / playback apparatus Y that has transmitted the recorded program information is also displayed.
Here, the video v0 is, for example, a television broadcast input from the tuner 1 to the video processing circuit 4 or a video input from the recording / playback apparatus Y, and is included in the recorded program selection menu v1. The recorded program information is not necessarily related. That is, in the television receiver X, the recorded program information is received via the CEC line 42 and is OSD-displayed on the video display unit 5. Therefore, the recorded program information received from the recording / playback apparatus Y is received. , For example, a television broadcast that is not related to the recorded program information or a video from a recording / reproducing apparatus Y different from the recording / reproducing apparatus Y that transmitted the recorded program information can be displayed simultaneously.
In addition, the control circuit 6 may display the video v0 already displayed and the video of the recorded program selection menu v1 on a multi-screen, or display only the video of the recorded program selection menu v1. (Not shown).
The above processing is processing on the television receiver X side in the recorded program display processing.

Next, processing on the recording / playback apparatus Y side in the recorded program display processing will be described.
[Steps S201 and S202]
On the recording / reproducing apparatus Y side, first, the control circuit 24 executes a process of receiving a request command for the recorded program information transmitted from the television receiver X through the CEC line 42 in the process of step S102. (S201). When the recording / playback apparatus Y is in the standby state, first, the sub MPU 28 controls the energization switch at the time when a command addressed to the sub apparatus is received from the standby state. The state is switched to a state (that is, activated), and the control circuit 24 activated thereby discriminates the content of the received command.
When the control circuit 24 confirms that the request command has been received (in response to a request from the television receiver X), the control circuit 24 designates the recorded program stored in the HDD 23 by the request command. A search process for specifying a recorded program recorded during the waiting period is executed (S202). Note that the standby period may be determined on the recording / playback apparatus Y side in the same manner as in Example 1 described later.

[Steps S203 to S205]
Next, the control circuit 24 of the recording / playback apparatus Y determines whether or not one or more recorded programs have been specified by the recorded program search process in the step S202 (S203).
Here, when the control circuit 24 determines that no recorded program has been specified, the control circuit 24 sends the recording candidate absence notification, which is a notification indicating that no recorded program exists, through the CEC line 42. The data is transmitted to the receiver X (S205), and then the process returns to step S201 described above. At that time, if the state before receiving the request command from the television receiver X is the standby state, the sub MPU 28 controls the energization switch so that the recording / playback apparatus Y is Switch from the operating state to the standby state (return to the original state).

On the other hand, if it is determined in step S203 that one or more recorded programs have been specified, the control circuit 24 extracts recorded program information related to the specified recorded program, and the recorded program information and its own identification information. Is transmitted to the television receiver X through the CEC line 42 (S204). At this time, the control circuit 24 transmits the recorded program information using an OSD display command of a communication protocol defined by the CEC standard in the HDMI standard.
As shown in FIG. 2, the recorded program information includes a program title d1, a broadcast channel d2, a broadcast date and time d3, a genre d4, and the like, which are program content information.

As described above, in the recording system Z, the television receiver X is recorded in the recording / playback apparatus Y during the standby period on the condition that the power of the television receiver X is turned on. Since the recorded program information relating to the program is acquired and displayed through the CEC line 42, the recorded program information can be displayed simultaneously with a video input from a location different from the transmission source of the recorded program information. . For example, even when a video or audio input from one recording / playback apparatus Y shown in FIG. 1 is viewed, the recorded program information input from the other recording / playback apparatus Y can be displayed simultaneously. . It can also be displayed simultaneously with the television broadcast input from the tuner 1 to the video processing circuit 4.
In addition, the user simply performs a simple operation of turning on the power of the television receiver X, and the video display unit 5 of the television receiver X is recorded with the recording / playback apparatus Y during the standby period. The recorded program information relating to the recorded program can be displayed and confirmed.

Further, when recorded program information is received from a plurality of the recording / playback apparatuses Y, the information is displayed in a list, so that the user can record programs that exist in pieces in the plurality of recording / playback apparatuses Y. Can be easily grasped.
In the present embodiment, the case where the recorded program information transmitted from the recording / playback apparatus Y includes a program title d1, a broadcast channel d2, a broadcast date and time d3, a genre d4, and the like, which are program content information, will be described. did. On the other hand, EPG information (electronic program guide information) is stored in the EEPROM 6c of the television receiver X, and an identification code for identifying a recorded program is used as the recorded program information transmitted from the recording / playback apparatus Y. It is also possible to extract and display the program title, broadcast channel, broadcast date / time, genre, etc. of the recorded program corresponding to the identification code from the EPG information on the television receiver X side as another embodiment.

  Further, the recording system Z shown in FIG. 1 shows a configuration in which the television receiver X and the recording / reproducing apparatus Y are directly connected by the HDMI interface W. Is not limited to this. For example, the television receiver X and the STB (set top box) or the recording / playback device Y are connected by the HDMI interface W, and the STB or the recording / playback device Y and the other recording / playback device Y are further connected. A configuration connected by the HDMI interface W (a configuration indirectly connected) is also conceivable.

In the first embodiment, another example of recorded program display processing executed in the video system Z will be described with reference to FIG. It should be noted that the same components as those in the video system Z will be described using the same reference numerals.
FIG. 5 is a flowchart for explaining another example of the recorded program display process executed in the video system Z. Here, S301, S302,... Shown below are processing procedures (steps) on the television receiver X side (left side in FIG. 5), and S401, S402,. This represents the identification code of the processing procedure (step) in the right side. Note that the processing shown in FIG. 5 is started when the power of the television receiver X is turned on.
The recorded program display process described in the first embodiment is for the recording / reproducing apparatus Y to automatically output the recorded program information to the television receiver X when the power of the television receiver X is turned on. It differs from the recorded program display process (see FIG. 3) described in the above embodiment in that the process is executed. This will be specifically described below.

The sub MPU 28 of the recording / playback apparatus Y according to the first embodiment has a function of detecting ON / OFF of the power source of the television receiver X through the CEC line 42. Here, the sub-MPU 28 that implements such a function is an example of a power-up detection means. Note that the processing for detecting ON / OFF of the power of the television receiver X is defined by the HDMI standard, and therefore the description thereof is omitted here.
The sub MPU 28 has a function of storing the date and time in a predetermined memory when the power of the television receiver X is turned on (started up) or turned off (turned down). The stored date and time is used for recording information display processing (see the flowchart of FIG. 5, step S402) described later.

The recorded program display process shown in FIG. 5 is a process executed by the television receiver X and the recording / reproducing apparatus Y while exchanging information through the CEC line 42 of the HDMI interface W. Hereinafter, the processing on the recording / playback apparatus Y side will be described first, and then the processing on the television receiver X side will be described.
First, processing on the recording / playback apparatus Y side in the recorded program display processing will be described.

[Step S401]
In the recording / reproducing apparatus Y, it is determined whether or not the power of the television receiver X has been turned on by the power-up detection function of the sub MPU 28 (S401).
At this time, if it is determined that the power of the television receiver X has been turned on (Yes in S401), the process proceeds to step S402, and if it is not determined that the power has been turned on (S401) The process repeats step S401.
Here, when it is determined by the sub MPU 28 that the power source of the television receiver X has been turned on, if the recording / playback apparatus Y is in the standby state, the sub MPU 28 When the rising of the power supply of the receiver X is detected, the energization switch is controlled to switch (i.e., start) from the standby state to the operation state, thereby starting the control circuit 24.

[Step S402]
In step S402, the control circuit 24 performs processing for determining a standby period (an example of a predetermined period) from when the television receiver X is turned off until now (that is, until the next power on). Executed. Specifically, as described above, the standby period is determined based on information related to the date and time of power ON / OFF of the television receiver X stored in a predetermined memory by the sub MPU 28.
Here, the standby period is not limited to a period from when the power of the television receiver X is turned off to when the power of the television receiver X is turned on next time. The period from when the power of the receiver X is turned on until the power of the television receiver X is turned on next time or when the recorded program recorded in the HDD 23 of the recording / reproducing apparatus Y is last accessed is described above. Another example is a period until the power of the television receiver X is turned on. The standby period is set in advance by the user at an appropriate time or when the recording / playback apparatus Y is initially set.

[Step S403]
Then, when the standby period is specified in step S402, the control circuit 24 automatically records the recorded program stored in the HDD 23 during the standby period specified by the request command. A search process for specifying a recorded program is executed (S403).

[Steps S404 to S406]
Next, the control circuit 24 of the recording / reproducing apparatus Y determines whether or not one or more recorded programs have been specified by the recorded program search process in the step S403 (S404).
Here, when the control circuit 24 determines that no recorded program has been specified, the control circuit 24 sends the recording candidate absence notification, which is a notification indicating that no recorded program exists, through the CEC line 42. The data is transmitted to the receiver X (S406), and then the process returns to step S401 described above. At that time, if the state before the rise of the television receiver X is detected is the standby state, the sub-MPU 28 controls the energization switch so that the recording / playback apparatus Y is Switch from the operating state to the standby state (return to the original state).

On the other hand, if it is determined in step S404 that one or more recorded programs are specified, the control circuit 24 extracts recorded program information relating to the specified recorded program, and the recorded program information and its own identification information. Is transmitted to the television receiver X through the CEC line 42 (S405). At this time, the control circuit 24 transmits the recorded program information through the CEC line 42 using an OSD display command of a communication protocol defined by the CEC standard in the HDMI standard. Here, the control circuit 24 for executing such transmission processing corresponds to the recorded program information display output means.
As shown in FIG. 2, the recorded program information includes a program title d1, a broadcast channel d2, a broadcast date and time d3, a genre d4, and the like, which are program content information.
The above processing is processing on the recording / reproducing apparatus Y side in the recorded program display processing.

Next, processing on the television receiver X side will be described.
[Steps S301, S303, 304]
In step S301, the control circuit 6 determines whether or not the recorded program information is received from the recording / reproducing apparatus Y. When the control circuit 6 receives the recorded program absence notification from the recording / playback apparatus Y through the CEC line 42, the control circuit 6 determines that the recorded program information has not been received from the recording / playback apparatus Y. To do.
When the control circuit 6 confirms that the recorded program information has not been received from one or more recording / playback apparatuses Y in step S301, the control circuit 6 shifts the processing to step S303. Then, the control circuit 6 causes the video display unit 5 to display an OSD message indicating that there is no recorded program recorded during the standby period (S303), and erases the OSD display being displayed after a predetermined time (S304). ), The recorded program display process is terminated.

[Steps S302 and 304]
On the other hand, when the control circuit 6 confirms that the recorded program information is received from one or more recording / playback apparatuses Y in the step S301, the video of the recorded program selection menu v1 for displaying the recorded program information is displayed. (Screen) is generated, the video is displayed on the video display unit 5 (S302), the OSD display being displayed is erased after a predetermined time (S304), and then the recorded program display processing is terminated. The step S302 is the same process as the step S104 (see the flowchart of FIG. 3).

As described above, in the configuration of the first embodiment, on the condition that the power source of the television receiver X is turned on, a recorded program recorded during the standby period in the recording / playback apparatus Y is automatically set. , Since it is output from the recording / playback apparatus Y to the video display unit 5 of the television receiver X through the CEC line 42 and displayed, the recorded program information is sent from a place different from the source of the recorded program information. It can be displayed simultaneously with the input video. For example, even when a video or audio input from one recording / playback apparatus Y shown in FIG. 1 is viewed, the recorded program information input from the other recording / playback apparatus Y can be displayed simultaneously. . It can also be displayed simultaneously with the television broadcast input from the tuner 1 to the video processing circuit 4.
In addition, the user simply performs a simple operation of turning on the power of the television receiver X, and the video display unit 5 of the television receiver X is recorded with the recording / playback apparatus Y during the standby period. The recorded program information relating to the recorded program can be displayed and confirmed.

Further, when the recorded program selection menu v1 is displayed (S104 or S302) by the recorded program display process (see FIG. 3 or FIG. 5) described in the embodiment and the first embodiment, the recorded program is selected. A configuration is conceivable in which the television receiver X can instruct the recording / playback apparatus Y to execute playback processing or deletion processing of the recorded program included in the menu v1. Thereby, the operability by the user can be improved.
Specifically, the control circuit 6 of the television receiver X selects a recorded program displayed according to an operation input from the remote controller 8 of the user. Here, the control circuit 6 when executing such processing corresponds to the recorded program selection means. Then, the control circuit 6 instructs the recording / reproducing apparatus Y to execute reproduction processing, deletion processing, etc. on the selected recorded program in accordance with an operation input from the remote controller 8 of the user. Here, the instruction is performed by transmitting a processing instruction command to the recording / reproducing apparatus Y through the CEC line 42. The processing instruction command includes recorded program information of a recorded program to be processed and information indicating the processing content (reproduction or deletion). Here, the control circuit 6 when executing such processing corresponds to the processing instruction means.

1 is a block diagram of a recording system Z including a television receiver X and a recording / playback apparatus Y according to an embodiment of the present invention. The figure which shows an example of the data structure of recorded program information The flowchart explaining an example of the procedure of the video recording program display process in the video recording system Z which concerns on embodiment of this invention. The figure which shows an example of the display screen by the video recording program display process in the video recording system Z which concerns on embodiment of this invention. The flowchart for demonstrating the other example of a recorded program display process.

Explanation of symbols

X: Television receiver (an example of a video display device)
Y ... Recording / reproducing apparatus Z ... Recording system 1, 21 ... Tuner 2xa, 2ya ... HDMI receiving unit 2xb, 25b ... CEC interface 3 ... Video switching circuit 4 ... Video processing circuit 5 ... Video display unit 6, 24 ... Control circuit 7, 26 ... Remote control interface circuit 8, 27 ... Remote control 9, 28 ... Sub MPU
DESCRIPTION OF SYMBOLS 10 ... Audio switching circuit 11 ... Audio processing circuit 12 ... Amplifier 13 ... Speaker 22 ... Recording / playback circuit 23 ... HDD
25a ... HDMI transmission unit 40 ... HDMI cable 41 ... TMDS line 42 ... CEC line d1 ... program title d2 ... broadcast channel d3 ... broadcast date / time d4 ... genre S101, S102, ... processing procedure (step) number

Claims (9)

One or a plurality of HDMI signal transmission means including a video display unit and including a TMDS signal transmission line that transmits a signal including a video signal and a CEC signal transmission line that conforms to the CEC standard and that performs signal transmission conforming to the HDMI standard A video display device configured to be communicable with a recording / playback device,
Recorded program information related to a recorded program recorded in a predetermined period among recorded programs recorded in the storage unit of the recording / playback device on the condition that the power source of the video display device is turned on, transmits the HDMI signal. Recorded program information acquisition means for acquiring from the recording / playback apparatus through a CEC signal transmission line of the means;
Recorded program information display control means for displaying the recorded program information acquired by the recorded program information acquisition means on the video display section;
A video display device comprising :
The video display apparatus, wherein the predetermined period is a period from when the video display apparatus is turned off to when the video display apparatus is turned on next time . The video display device according to claim 1 , wherein the recorded program information includes one or more of a program name, a broadcast date and time, a broadcast channel, and a genre. The recorded program information acquisition means requests the recording / playback apparatus to transmit the recorded program information through the CEC signal transmission line, and acquires the recorded program information returned through the CEC signal transmission line accordingly. The video display device according to claim 1 or 2 . Recorded program selection means for selecting the recorded program in accordance with an operation input through a predetermined operation unit in a state where the recorded program information is displayed on the video display unit;
Processing instruction means for instructing the recording / playback apparatus through the CEC signal transmission line to execute processing on the recorded program selected by the recorded program selection means;
The video display device according to claim 1 , further comprising : 5. The video display apparatus according to claim 4 , wherein the process instructing unit to execute the recording / playback apparatus includes one or both of a playback process and a deletion process of the recorded program. The recorded program information display control means organizes the plurality of recorded program information and displays the video when the recorded program information acquisition means acquires a plurality of the recorded program information from the plurality of recording / playback apparatuses. The video display device according to claim 1, wherein the video display device is displayed on a screen. A video display device having a video display unit by means of an HDMI signal transmission means for transmitting a signal compliant with the HDMI standard, including a TMDS signal transmission line for transmitting a signal including a video signal and a CEC signal transmission line compliant with the CEC standard; A recording and playback device configured to be communicable,
A power-up detection means for detecting a power-up of the video display device;
On the condition that the power-on detection unit detects the power-on of the video display device, the program was recorded during a predetermined period among the recorded programs recorded in the storage unit of the recording / playback device. Recorded program information display output means for outputting recorded program information relating to a recorded program to the video display device through a CEC signal transmission line of the HDMI signal transmission means;
A recording / playback apparatus comprising :
The recording / reproducing apparatus , wherein the predetermined period is a period from when the video display device is turned off to when the video display device is turned on next time . The recorded program information display output means transmits the recorded program information to the video display device using an OSD display command of a communication protocol defined by the CEC standard of the HDMI standard, whereby the video display of the video display device The recording / playback apparatus according to claim 7 , wherein the recorded program information is displayed on a section . 9. The recording / reproducing apparatus according to claim 7 , wherein the recorded program information includes one or more of a program name, a broadcast date / time, a broadcast channel, and a genre.

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