JPH0750065A - Remote controller - Google Patents

Abstract

PURPOSE:To provide a remote controller being employed in a portable compact disc player controllable through a remote commander in which the transmitter is downsized. CONSTITUTION:When a data representative of the operating state delivered from a transmitter 2 can not be received for a predetermined time and a button 21 for stopping the operation of the receiver 2 is depressed continuously for a predetermined time, operation of a transmitter 3 is interrupted thus allowing the interruption of operation of the transmitter 3, as well as the receiver 2, without requiring any special button for stopping the operation.

Description

Detailed Description of the Invention

[0001]

[Table of Contents] The present invention will be described in the following order. Field of the Invention Conventional Technology Problems to be Solved by the Invention Means for Solving the Problems (FIG. 1, FIG. 3, FIG. 4, FIG.
8) Operation (FIGS. 1, 3, 4, 6 to 8) Embodiment (1) Overall configuration (FIGS. 1 to 5) (2) Processing of system control circuit 68 (FIGS. 6 to 8) (3) Effect of Example (4) Other Example Effect of Invention

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device, and can be applied to, for example, a portable compact disk player which can be controlled by a remote commander.

[0003]

2. Description of the Related Art Heretofore, there has been a portable compact disk player which has a small overall size and can be driven by a dry battery. That is, by making the overall shape smaller, this kind of compact disk player can be easily carried, and by being driven by a dry battery, it can be carried and listen to music at a desired place. Has been done.

[0004]

By the way, in this kind of compact disc player, the compact disc player main body and the control portion are separately formed, and the compact disc player main body reproduces the audio signal and the reproduced audio signal. If the control unit can receive the message, the music can be enjoyed while the compact disc player body is stored in a bag or the like, and the usability of this type of compact disc player can be improved.

At this time, if a remote commander is formed by this control unit, the operation of the compact disc player body can be switched while the compact disc player body is housed in a bag or the like. Further, if a display section is formed in this control section and the operation of the compact disk player main body can be confirmed through this display section, the usability can be further improved.

For this purpose, the compact disc player main body needs to wirelessly transmit the audio signal and the display data to the control unit, and the control unit needs to wirelessly transmit the operation switching control data to the compact disc player main body. There is.

On the other hand, when the control unit is formed separately from the main body of the compact disc player so that the compact disc can be auditioned, in the portable compact disc player, the shape of the control unit itself is used. Also needs to be miniaturized.

The present invention has been made in consideration of the above points, and when a controlled device such as a compact disk player body is remotely controlled by the transmitter, the remote controller can be downsized. Is to propose.

[0009]

In order to solve such a problem, in the present invention, a remote control device 1 for controlling the operation of the receiving device 2 by transmitting a predetermined unit of control data DC from the transmitting device 3 to the receiving device 2. In, when the operation device 21 for stopping the operation of the receiving device 2 is operated, the transmitting device 3 sends the control data DC for stopping the operation to the receiving device 2, and the receiving device 2 indicates the operating state. Predetermined operation data D
When H is continuously transmitted to the transmitting device 3 and the control data DC for stopping the operation is received, the operation is stopped. When the transmitting device 3 cannot receive the operation data DH for a predetermined period, the operation is stopped and stopped. When the operator 21 is continuously operated for a predetermined period, the operation is stopped.

[0010]

By stopping the operation when the operation data DH cannot be received for a predetermined period of time, the operation can be stopped and the power consumption can be reduced even when the control data D1 responding for some reason cannot be received. When the stop operator 21 is operated for a predetermined period of time, by stopping the operation, the power supply can be operated even if the power switch is omitted.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

(1) Overall Configuration In FIG. 1, reference numeral 1 denotes a portable compact disc player as a whole, a compact disc player body 2 for reproducing a compact disc, and a remote commander 3 for remotely controlling the compact disc player body 2. It is formed by and.

Here, the compact disk player body 2
After sliding the lid opening / closing operator 4 to open the upper lid 5,
By placing the compact disc on the table 6 and closing the upper lid 5, the compact disc is held in a reproducible state. In this state, the compact disc player main body 2 is configured such that the power can be turned on by operating any one of the operators 8 to 16 arranged on the front surface, and the operator 8 is further pressed. When the compact disc playback operation is started and the playback operation is continued,
The button can be pressed to pause.

Further, the compact disc player body 2
The playback operation can be stopped by pressing the operation element 9 adjacent to the operation element 8. Further, in the reproduction stopped state, the operation element 9 can be pressed to switch off the power supply. It is done like this. As a result, the compact disc player main body 2 can operate the operating elements 8 to 16 of the compact disc player main body 2 to turn on the power source and then execute a desired reproduction process, and further operate the operating element 9. Then, the power can be turned off.

Further, the compact disc player body 2
Is the operator 1 of the front skip after starting the playback operation.
By repeatedly pressing 0 and 11 respectively, it is possible to skip the performance being reproduced in the reverse direction with respect to the reproducing direction and the reproducing direction, in units of one song.
Further, by continuously pressing the operating elements 10 and 11, the reproduction speed is increased in the reproduction direction and in the direction opposite to the reproduction direction so that the performance to be reproduced can be searched.

Further, the compact disc player body 2
Is the ESP mode operator 12 after starting the playback operation.
Is operated to switch the operation mode between the ESP mode and the normal mode. On the other hand, the compact disc player main body 2 has an earphone jack 13, a volume control operator 14 and an operation mode switching operator 15 arranged on the side surface, and an earphone plug is inserted into the earphone jack 13 for operation. By operating ~ 15, the compact disc player main body 2 alone can listen to the compact disc without using the remote commander 3.

That is, the compact disc player main body 2 has a state in which the remote control of the remote commander 3 is accepted (hereinafter referred to as a standby state) and a state in which the remote control is not accepted by repeatedly sliding the front hold switch 16 to the left. The hold switch 16 is slid to the right and held to accept the remote control of the remote commander 3 and to operate the operators 8 to 15 provided on the compact disc player main body 2. It can be held in a state where it is not accepted (hereinafter referred to as a hold state). This enables the compact disk player 1
Slides the hold switch 16 to the right,
For example, it is possible to effectively avoid erroneous operation of the operators 8 to 15 when the compact disk player body 2 is stored in a bag or the like.

Corresponding to the operators of the compact disc player body 2, the remote commander 3 has a reproduction operator 18, a skip operators 19 and 20, a reproduction stop operator 21, and an ESP mode switching operator 22. It is arranged to output control data to the compact disc player main body 2 in response to the operation of each of the operating elements 18 to 22.

As a result, the compact disk player 1
The operation of the compact disk player body 2 can be switched in the same manner as when the operators 18 to 24 are operated to operate the corresponding operators 8 to 14 of the compact disk player body 2.

Further, the remote commander 3 has an earphone jack 23 and a volume adjusting operator 24 arranged on the side surface thereof, and when the compact disk player body 2 is set to the standby state and the hold state, the compact disk player is set. The audio signal wirelessly transmitted from the main body 2 is output from the earphone jack 23. As a result, the remote commander 3
After inserting an earphone plug into the earphone jack 23 instead of the earphone jack 13 of the compact disc player body 2, the compact disc player body 2
The audio signal reproduced by the compact disk player main body 2 can be listened to wirelessly by switching the operation modes of the above.

That is, conventionally, among the portable audio equipments of this type, an equipment which can listen to an audio signal via a remote commander has been designed so that an earphone cable is directly connected to the remote commander. However, in such a case, it is necessary to separately prepare earphones when auditioning the audio signal with only the main body device, and even if only the earphones are broken, it is necessary to replace and repair them together with the remote commander.

On the other hand, as shown in FIG. 2, earphone jacks 13 and 23 are formed on both the compact disc player body 2 and the remote commander 3, and the compact disc player body 2 is selectively selected according to the user's needs. Alternatively, if the earphone plug P can be connected to the remote commander 3, it is possible to prepare an earphone without separately preparing it.
The earphone desired by the user can be connected to listen to the audio signal, and if the earphone fails, only the earphone can be replaced.

Therefore, the usability of the compact disc player 1 can be further improved accordingly. Thus, in the compact disk player 1 as described above,
The earphone jacks 13 and 23 are formed so that a stereo type so-called mini-plug P can be connected, thereby improving usability.

With this, the compact disk player 1
Connect the earphone plug to the remote commander 3 to connect the compact disk player body 2 to the remote commander 3.
By controlling the above operation, the audio signal can be freely auditioned even when the compact disc player main body 2 is stored in a bag or the like.

At this time, the remote commander 3 uses the earphone cable 25 connected to the earphone jack 23.
Is used as an antenna to transmit and receive desired data to and from the compact disc player body 2, and to receive an audio signal transmitted from the compact disc player body 2. As a result, the compact disc player 1 can receive an audio signal or the like with a compact and simple shape as a whole, and the compact disc player 1 can be operated only when the remote commander 3 needs to control the operation of the compact disc player main body 2. Desired data can be transmitted and received between the player main body 2 and the remote commander 3.

That is, when the earphone plug 23 is not connected to the earphone jack 23 on the remote commander 3 side, it can be determined that the remote commander 3 does not need to remotely control the compact disk player body 2. In this case, the remote commander 3 If data can be transmitted to and received from, the compact disk player body 2 may be erroneously controlled.

When the cable of the earphone is used as an antenna, the remote commander 3 receives the data sent from the compact disk player body 2 when it is not necessary to remotely control the compact disk player body 2 by the remote commander 3. By not obtaining it, the power supply of the remote commander 3 can be controlled on the basis of this data reception result, and useless power consumption of the remote commander 3 can be reduced.

Further, the remote commander 3 has a liquid crystal display unit 26, and the liquid crystal display unit 26 can display the operation mode of the compact disc player main body 2 and the like. Therefore, the compact disc player body 2
The substrate storage space 28 is formed inside the upper lid 5, and the transmission / reception substrate is stored in the substrate storage space 28. As a result, the compact disc player main body 2 receives the control data transmitted from the remote commander 3 on the transmitting / receiving board, and further transmits the audio signal and the display data of the liquid crystal display unit 26 to the remote commander 3.

At this time, the remote commander 3 is operated by the operator 1.
When 8 to 22 are operated, the control data is transmitted in response to this operation, whereas the compact disc player main body 2 continuously transmits the display data in the standby state and the hold state, whereby the remote control is performed. The operation of the compact disk player body 2 can be monitored on the commander 3 side.

Therefore, as shown in FIG. 3, when the remote commander 3 sends the control data, the remote commander 3 displays the symbol 30 representing the control data transmitting operation, and further, the remaining display of the liquid crystal display unit 26 according to the display data. Switch. That is, the remote commander 3 displays the key symbol 31 when the manipulator 16 is operated and the compact disc player body 2 is set to the hold state, and the manipulators 10, 1 are displayed.
When the compact disk player body 2 starts the search operation in response to the operation of 1, 19, or 20, the symbol 32 or 33 indicating the search direction is displayed.

Further, the remote commander 3 displays an elliptical symbol 34 when the compact disc is held in the loaded state, and the compact disc player main body 2 is displayed.
When the reproduction operation is started, a fan-shaped symbol 35 formed in a manner similar to a compact disc is displayed inside the symbol 34 sequentially and cyclically. As a result, the remote commander 3 displays the fan-shaped symbol 35 so as to move according to the rotation of the compact disc during reproduction. In the search mode, the switching of the display of the symbol 35 is accelerated, and the reproduction direction is further increased. This moving direction is switched according to the above.

Further, the remote commander 3 is set to "INTRO" when the compact disc player main body 2 is set to the intro mode for sequentially reproducing the beginning portion of each performance.
Is displayed, and when the compact disc player main body 2 is set to the program mode for reproducing in the preset song order, the display of "PGM" is displayed. Furthermore, when the compact disk player body 2 is set to the shuttle full mode in which the performance is randomly reproduced, the remote commander 3 displays a display of “SHUFFLE”, and the compact disk player body 2 is set to the repeat mode in which the performance is repeatedly played. When set, the arrow symbol 36 is displayed.

Further, when the operation mode for emphasizing the low tone of the reproduced audio signal is selected, the remote commander 3 displays the display of "DBB" and displays "MID" or "MAX" according to the emphasizing level. The display is displayed, and further, the 2-digit 7-segment display unit 37 is driven to display the track number and the like. Further, when the volume limit mode for limiting the volume is selected, the remote commander 3 displays the human face symbol 38 and the number "1" or "2" according to the level of the limit. Further, the remote commander 3 displays warning symbols 39 and 40, respectively, when the power supplies of the compact disk player body 2 and the remote commander 3 are reduced.

That is, when the compact disc player body 2 is remotely controlled by the remote commander 3 and the audio signal reproduced by the compact disc player body 2 is wirelessly auditioned as in this embodiment, the compact disc player body 2 is simply remoted. The power consumption on the remote commander 3 side is significantly increased as compared with the case of controlling. Therefore, in the compact disc player 1, it is necessary to monitor the power consumption not only on the compact disc player main body 2 side but also on the remote commander 3 side and issue a warning if necessary.

Therefore, in this embodiment, the compact disk player body 2 monitors the power supply voltage of the compact disk player body 2 to monitor the consumption of the battery housed in the compact disk player body 2, and this power supply voltage When it drops below a predetermined value, it is determined that the battery has run down. When it is determined that the battery is exhausted, the compact disc player body 2 outputs this determination result by using the display data sent to the remote commander 3, and the remote commander 3 displays the display unit 39 based on the reception result. Is displayed.

On the other hand, the remote commander 3 similarly monitors the power supply voltage to monitor the consumption of the built-in battery, and displays the display unit 40 when the power supply voltage drops below a predetermined value. Here, the display portions 39 and 40 are formed of the same symbol, and are provided outside the liquid crystal display portion 26.
In the case of the remote commander 3, the compact disk 3
4 and symbols 41A and 41B printed in a manner similar to the symbol 30 of the transmission operation can identify the power sources of the compact disk player body 2 and the remote commander 3. As a result, the compact disc player 1 enables the user to easily confirm the consumption of the power sources of the compact disc player main body 2 and the remote commander 3.

On the other hand, when the operation mode is switched to the ESP mode, the compact disc player main body 2 reproduces audio data via a large capacity memory, which allows continuous operation even when a track jump is caused by vibration or the like. It is designed to reproduce audio signals. The remote commander 3 causes the compact disk player body 2 to ESP when the operator 22 is operated.
When the mode is switched to, the display unit 42 is displayed and the amount of data stored in this memory can be displayed.

As a result, the compact disk player 1
Is adapted to operate the compact disc player main body 2 wirelessly and monitor its operating state. Furthermore, the remote commander 3 can be used to listen to the audio signal reproduced by the compact disc player main body 2 wirelessly. ing.

Here, as shown in FIG. 4, the compact disc player main body 2 drives the spindle motor by driving the mechanical portion 51 based on the control code output from the system control circuit 57, and mounts it on the table 6. The placed compact disk is driven at a predetermined rotation speed.
In this state, the compact disc player main body 2 irradiates the compact disc with the light beam of the optical pickup at the mechanical portion 51, receives the reflected light beam by the optical pickup, and outputs the received light result to the amplifier circuit 52.

As a result, the compact disc player main body 2 can detect the tracking error signal and the focus error signal via the amplifier circuit 52.
By controlling the mechanical unit 51 based on the tracking error signal and the focus error signal, the tracking control and the focus control can be performed. Further, the amplifier circuit 52 amplifies the reproduction signal RF which is the reproduction result of the compact disk and then converts it into binary data, whereby the compact disk player body 2
Is capable of detecting audio data, address data added to the audio data, and the like based on the binarized data.

The data processing circuit 53 stores audio data sequentially input via the memory controller 54 in the memory 55, and performs error correction processing and deinterleave processing on this audio data. Further, the data processing circuit 53 sequentially inputs the audio data thus stored in the memory 55 and outputs the audio data to the audio output circuit 56, and the audio output circuit 56 converts the audio data into an analog analog conversion circuit by a built-in analog digital conversion circuit. Convert to signal.

Further, the audio output circuit 56 amplifies this analog signal by a predetermined amplifier circuit and outputs it to the earphone jack 13, whereby the compact disc player main body 2 outputs the audio signal recorded on the compact disc. You can listen to it.

When the audio signal is reproduced in this way, the system control circuit 57 operates the E on the basis of the control data DC of the remote commander 3 when the operator 12 is operated.
When the SP mode is set, the rotation speed of the compact disk is increased and the processing speed of the data processing circuit 53 and the like is increased, whereby the transfer speed of the audio data sequentially stored in the memory 55 is The entire operation is controlled so as to be faster than the transfer rate of the audio data output from 55. Further, when the audio data is accumulated in the memory 55 at a predetermined value or more in this state, the system control circuit 57 suspends the reproducing operation of the compact disk.

Thus, the main body 2 of the compact disc player can output the audio signal sequentially while the reproduced audio data is always held in the memory 55 at a certain value or more, and when an abnormality such as a track jump occurs. However, it is designed to be able to output a continuous audio signal. That is, the system control circuit 57 monitors the tracking error signal, the focus error signal, and the address data added to the audio data, and if the audio data cannot be continuously reproduced correctly, the system control circuit 57 reproduces the audio data correctly. The audio data that was profitable was repeatedly played.

As a result, in the compact disc player main body 2, the amount of data in the memory 55 decreases when a disturbance such as a vibration frequently occurs, so that the memory 55 becomes smaller.
The amount of data stored in the display unit 26 is displayed by the symbol 42 of the display unit 26, and the user is alerted.

Further, the audio output circuit 56 outputs the audio signal converted into the analog signal to the transmitting section 58, and the transmitting section 58 outputs the audio signal with a frequency.
It is modulated with a carrier wave of 239 [MHz] and sent to the remote commander 3. This enables the compact disk player 1
The remote commander 3 can receive the audio signal and listen to the audio signal wirelessly.

On the other hand, in addition to the control of the memory 55, the system control circuit 57 responds to the operation of the operators 8 to 16 and further, based on the control data DC input via the receiving section 59. A control code is issued to each operation block, whereby the operation of the compact disk player body 2 is switched, and the display data DH is sent to the remote commander 3 via the transmitter 58. At this time, the system control circuit 57, after generating the display data DH,
The display data DH is converted into a predetermined format to generate the transmission data D1.
The transmission data D1 is NRZ-encoded using a carrier wave of 44.1 [kHz] and sent to the remote commander 3, whereby the display data DH can be efficiently transmitted.

Further, when the system control circuit 57 is set to the standby state, the reproduction mode or the ESP mode, the corresponding light emitting diodes 60 to 62 are turned on, whereby the operation state is confirmed on the compact disc player main body 2 side. It is designed to get you.

Corresponding to this, as shown in FIG. 5, the remote commander 3 is a wire 2 of an earphone forming an antenna.
In step 5, the display data and audio signal sent from the compact disk player body 2 are received, and the reception result is output to the high frequency circuit 65. Here, the high frequency circuit 65 is
The audio signal is demodulated and output to the audio processing circuit 66. The audio processing circuit 66 performs volume suppression processing and bass emphasis processing on the audio signal as necessary, and outputs the audio signal to the earphone jack 23 via the amplifier circuit 67. .

Thereby, the compact disk player 1
The audio signal can be auditioned in a desired operation mode via the remote commander 3. Further, the high frequency circuit 65 is provided in the compact disc player main body 2
It receives the transmission data D1 sent from the device and outputs the reception result to the system control circuit 68.

As a result, the system control circuit 68 can detect the display data DH from the transmission data D1, drive the liquid crystal display unit 26 based on the detection result, and visually confirm the operation of the compact disk player body 2. It is done like this. Further, the system control circuit 68 detects the operation of the operating elements 18 to 24 by scanning the operating elements 18 to 24 in a predetermined cycle, and based on the detection result, the liquid crystal based on the display data DH. The display unit 26 is driven and the operation of the audio processing circuit 66 is switched.

As a result, the compact disc player 1
Is adapted to operate the operator 24 to adjust the volume and the like, and to display the symbol 30 and the like. Further, the system control circuit 68 detects an erroneous operation of the user based on the display data DH and the operation detection result of the operators 18 to 24, and drives the tone sound generating circuit 69 as necessary, thereby the user. It is designed to attract the attention of.

Further, the system control circuit 68 controls the control data D based on the operation detection result of the operators 18-24.
C is generated and this control data DC is output to the transmitter 70. In response to this, the transmitter 70 sends the control data DC
Is subjected to NRZ encoding processing with a predetermined carrier wave and then output to the antenna 25 via the high frequency circuit 65, whereby this control data DC can be sent to the compact disc player main body 2. Thus, the compact disc player 1 can remotely control the compact disc player main body 2 by using the remote commander 3.

(2) Processing of system control circuit 68 Here, the display data is formed by the data necessary for driving the liquid crystal display unit 26 of the remote commander 3 and the error detection checksum. 3 is adapted to switch the display of the liquid crystal display unit 26 and to confirm the operation of the compact disk player body 2 and the operation of the audio processing circuit 66, and retransmit the control data as necessary. It is designed to be able to do.

Therefore, the system control circuit 68 of the remote commander 3 executes the processing procedure shown in FIG. 6 to receive the display data and send the control data as necessary. That is, the system control circuit 68
When any one of the operators 18 to 24 is operated, the operation shifts from step SP1 to step SP2, and the standby mode (that is, the mode in which only the circuit block detecting the operation of the operators 18 to 24 is supplied with power) When the power is turned on, the reset process is executed to turn off the power-off flag, and at the same time, a preset display when the power is turned on is displayed on the liquid crystal display unit 26.

Further, the system control circuit 68 clears the random access memory (RAM) forming the work area in the subsequent step SP3, and the subsequent step S3.
The built-in timer is set to the initial value with P4. Subsequently, the system control circuit 68 proceeds to step SP5, determines whether or not the power-off flag is raised here, and if a negative result is obtained here, proceeds to step SP6 and executes the key scan processing.

As a result, the system control circuit 68 receives the display data at the subsequent step SP7 after detecting which operator is operated. This reception process determines whether or not a header added to the display data can be detected for a predetermined period, and if a header can be detected, the display data is detected based on the timing of this header detection. It is executed by When the display data is detected here, the system control circuit 68 drives the liquid crystal display unit 26 based on the detection result, whereby the compact disc player 1 operates the compact disc player body 2 via the remote commander 3. It is designed to be monitored.

As a result, when the system control circuit 68 detects the display data and further cannot detect the header, the system control circuit 68 proceeds to the subsequent step SP8 and responds to the operation of the operator detected by the key scan processing in response to the compact disk player. Control data is sent to the main body 2. As a result, the system control circuit 68 can switch the operation of the compact disk player body 2 in response to the operation of the operator.

When the control data is transmitted in this way,
The system control circuit 68 executes timer processing in the subsequent step SP9. Here, there are cases where this type of remote control device cannot receive the control data even though the control data has been sent. As a result, the system control circuit 68 counts the time after the control data is sent in the timer process in this case, thereby reducing the useless sending of the control data in the control data sending process and reliably reducing the size of the compact disc player main body 2. The operation can be switched.

That is, the system control circuit 68 counts up the initially set timer by this timer processing, further initializes the timer if necessary, and then executes step SP.
5 and this leads to steps SP5-SP6-SP7.
-SP8-SP9-SP5 processing procedure is repeated. On the other hand, in step SP5,
If the power-off flag is on, the system control circuit 68 moves to step SP10 and switches the entire operation mode to the original standby state. As a result, the system control circuit 68 turns off the power of the remote commander 3 to stop the unnecessary power consumption.

The process of raising the power-off flag is executed by the control data transmitting process of step SP7 and the receiving process of step SP7, whereby the system control circuit 68 omits the power switch and executes the remote control. The power of the commander 3 can be operated, and the supply of unnecessary power is stopped.

That is, as shown in FIG. 7, in the reception process, the system control circuit 68 moves from step SP11 to step SP12 and detects the header for a predetermined period based on the reception result of the high frequency circuit 65. If the header cannot be detected here, the system control circuit 68
In contrast to the direct shift to step SP13, when the header can be detected, the display data repeatedly transmitted based on the header detection result is detected twice, and the procedure shifts to step SP13.

At step SP13, the system control circuit 68 determines whether or not the display data has been correctly detected. That is, when the display data detected twice with respect to the header shows a coincident value, the system control circuit 68 judges that the display data has been correctly detected and moves to step SP14 to receive the display data received here. The liquid crystal display unit 26 is driven based on the data.

As a result, the remote commander 3 can confirm the operation of the compact disk player body 2 via the display unit 26, and the system control circuit 68
When the processing of step SP14 is executed, step SP15
, And return to the main routine.

On the other hand, when the header cannot be detected,
Furthermore, if the display data detected twice does not match,
The system control circuit 68 judges that the display data could not be correctly detected and moves to step SP16 to detect the period in which the display data cannot be correctly detected. That is, in this embodiment, the system control circuit 68 is
If the display data can be correctly detected until then, the timer is operated in step SP16, whereas if the display data cannot be continuously detected correctly,
At step SP16, the value of this timer is detected.

When the period during which the display data cannot be detected correctly is detected in this way, the system control circuit 68
Determines at the next step SP17 whether this period is within 3 seconds. If an affirmative result is obtained here, in this case, it is possible that the user carrying the remote commander 3 temporarily deviates from the receivable range of the display data, or further, noise is mixed in the display data. Thus, the system control circuit 68 moves to step SP18, where the segment display 37 of the liquid crystal display unit 26 is set to 2
After displaying the horizontal bar of the book to call the user's attention, the process proceeds to step SP19.

On the other hand, when a negative result is obtained in step SP17, the system control circuit 68 directly moves to step SP19, and it is determined whether the period during which the display data cannot be correctly detected is 1 minute or more. to decide. If a positive result is obtained here, the system control circuit 68 proceeds to step SP20, sets the power-off flag to on, and then proceeds to step SP15.

That is, in this case, it is considered that the user carrying the remote commander 3 continuously deviates from the receivable range of the display data, and the power source of the compact disk player body 2 is forcibly switched to the off state. In this case, the user may also pull out the earphone plug P from the earphone jack. In this case, the remote commander 3 wastes power.

As a result, the system control circuit 68 sets the power-off flag to ON when the display data sent from the compact disk player body 2 cannot be continuously received for one minute or more, and the processing of the subsequent step SP5. When the procedure is executed, the remote commander 3 is brought down to the standby mode, so that the power supply of the remote commander 3 is brought down and wasteful power consumption can be effectively avoided.

On the other hand, if a negative result is obtained in step SP19, the system control circuit 68 judges that the display data may be received again in this case, and moves to step SP15 and returns to the main routine. .

On the other hand, in the key scan processing and the control data transmission processing, the system control circuit 68 operates as shown in FIG.
The power-off flag is set to ON by executing the processing procedure shown in. That is, the system control circuit 68 performs step S in the key scan processing and the control data transmission processing.
The process moves from P30 to step SP31, where the key matrix data is fetched by detecting the logic level of the output port of the key matrix circuit, and then the process proceeds to step SP32.

Here, the system control circuit 68 judges based on the fetched key matrix data whether or not any one of the operators has been pressed, and if a negative result is obtained here, it moves to step SP33. After performing various processing, the process proceeds to step SP34 and returns to the main routine.
On the other hand, if any one of the operators is pressed, the system control circuit 68 shifts to step SP35 when a positive result is obtained in step SP32.
It is determined whether or not the operated operator is the stopped operator 21.

When an operator other than the operator 21 that is stopped is operated, the system control circuit 68 causes the step SP to operate.
When a negative result is obtained in 35, the process proceeds to step SP36, and a key code is set corresponding to the operator operated here. Further, the system control circuit 68 is
By outputting this key code to the transmitting section 58 in the following step SP37, the control data DC formed by this key code is sent to the compact disc player main body 2, and this processing procedure is ended in the following step SP34.

As a result, the remote commander 3 can remotely control the compact disc player body 2 by switching the operation of the compact disc player body 2 based on the control data DC.

On the other hand, when the stop operator 21 is pressed, the system control circuit 68 causes the step SP3.
If a negative result is obtained in step 5, step S
Moving to P38, it is judged here whether or not the pressing operation is continued for 3 seconds. If a negative result is obtained here, the system control circuit 68 moves to step SP36, whereby the control data DC for stopping the compact disk player body 2 is stopped.
Is sent. On the other hand, if a positive result is obtained in step SP38, the system control circuit 68 causes the step SP38 to
After shifting to 39 and setting the power-off flag to on, the routine proceeds to step SP34.

As a result, the system control circuit 68 continues to operate when the operator 21 that is stopped for 3 seconds or longer is pressed.
It is designed to fall to the standby mode and turn off the power. Therefore, in the remote commander 3, the power can be operated without providing a separate power switch,
As a result, in the compact disc player 1,
The shape of the remote commander 3 can be miniaturized.

(3) Effects of the Embodiments With the above configuration, the manipulator 2 is continuously stopped for 3 seconds or more.
When 1 is pressed, it goes down to the standby mode and turns off the power of the remote commander.
The power of the remote commander 3 can be operated without providing a separate power switch, the shape of the remote commander 3 can be reduced, and the power of the remote commander is turned off based on the reception result of the display data. It is possible to reduce wasteful power consumption.

(4) Other Embodiments In the above-mentioned embodiments, the case where data is transmitted and received between the remote commander and the compact disc player main body by modulating control data and wirelessly communicating has been described. The invention is not limited to this, and may be remotely controlled via infrared rays or the like, and may be controlled by wire.

Further, in the above-mentioned embodiment, the case where the compact disc player main body 2 is controlled by the remote commander 3 has been described, but the present invention is not limited to this and can be widely applied to various remote control devices. .

[0080]

As described above, according to the present invention, when the operation data transmitted from the receiving device cannot be received for the predetermined period, the operation stop operator for further stopping the operation of the receiving device continues for the predetermined period. When operated by stopping the operation of the transmitter, the operation of the transmitter as well as the receiver can be stopped without separately providing an operator for stopping the operation. A remote control device that can be downsized can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing a compact disk player according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the connection of the earphones.

FIG. 3 is a plan view showing the liquid crystal display unit.

FIG. 4 is a block diagram showing the compact disc player body.

FIG. 5 is a block diagram showing a remote commander.

FIG. 6 is a flowchart for explaining the processing of the main routine of the system control circuit 68.

FIG. 7 is a flowchart for explaining the reception process.

FIG. 8 is a flowchart for explaining transmission of key scan and control data.

[Explanation of symbols]

1 ... Compact disk player, 2 ... Compact disk player body, 3 ... Remote commander, 5 ...
… Top cover, 21 …… Stop operator, 26 …… Liquid crystal display, 5
7, 68 ... System control circuit.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical display location G11B 33/14 E H05K 9/00 Q (72) Inventor Ikkuma Kumasaka 1-chome Arakawa-ku, Arakawa-ku, Tokyo 35th-6th iD-Day Co., Ltd.

Claims (1)

[Claims] 1. A remote control device for controlling the operation of the receiving device by transmitting control data of a predetermined unit from the transmitting device to the receiving device, wherein the transmitting device stops the operation of the receiving device. When the child is operated, the control data for stopping the operation is sent to the receiving device, and the receiving device continuously sends the predetermined operation data indicating the operation state to the transmitting device, and the control data for the stopping operation is given. When the operation device does not receive the operation data for a predetermined period, the operation is stopped, and the operation is stopped when the operation-stop operator is operated for a predetermined period. A remote control device characterized by the above.