JP2962135B2 - Remote control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote controller for controlling audio equipment, such as a portable headphone stereo or a CD player, which is driven mainly by a battery, using electromagnetic waves.

[0002]

2. Description of the Related Art In recent years, in order to improve operability, it has become indispensable to attach a remote control (hereinafter abbreviated as "remote control") to a small audio device represented by a headphone stereo.

FIG. 7 is a block diagram showing a conventional remote control device of a headphone stereo wireless system. In the figure, a remote control transmitting unit (hereinafter referred to as a remote control unit) 3 is shown.
An audio device main unit (hereinafter, referred to as a device main unit) 31 having a built-in remote control receiving unit in response to an electromagnetic wave signal emitted from the unit 31
Is controlled. Remote control unit 3
Reference numeral 0 denotes an operation switch 32, a remote controller control unit 33, a high-frequency converter 34, a local oscillator 35, a transmission antenna 36, and the like. The device main unit 31 remotely controlled by the remote control unit 30 includes an earphone 37, a high-frequency amplification circuit 38, a detection and demodulation circuit 39, a reproducing unit 40 including a tape mechanism, a low-frequency amplifier 41, and a main body control unit 4.
2, transistor switch 43, standby switch 4
4. DC power supply 45 and the like.

In such a configuration, the remote controller 30
And the device body 31 are separated and independent, and the remote controller 3
When the main unit 31 is controlled by the operation of 0, the standby switch 44 is first turned on, and a command is output from the main body control unit 42 according to the input, the transistor switch 43 is turned on, and the high-frequency amplifier circuit 38 and the demodulation for detection are demodulated. The power is supplied to the circuit 39 to operate it, and the remote controller 3
It is set in a state of waiting for a remote control command radio wave from 0.

In normal operation, when the operation switch 32 of the remote controller 30 is pressed, a serial transmission code corresponding to the operation command of the operation switch 32 is generated by the remote controller controller 33, and generated by the local oscillator 35 in the high frequency converter 34. The converted signal is subjected to high-frequency conversion by a heterodyne method, amplified, and output as a transmission signal from the transmission antenna 36. Then, the device main unit 31 receives the transmission signal from the remote control unit 30 by the code of the earphone 37 also serving as a receiving antenna, demodulates it by the high-frequency amplifier circuit 38 and the detection demodulation circuit 39, and The decryption is performed, the command of the operation switch 32 is confirmed, a control output is generated, and the operation of the device main body 31 such as the reproducing means 40 can be controlled. The device main body is portable, and is often put in a bag or the like when used.

As such a wireless transmission type remote controller, a remote controller controller 33 of a remote controller 30 is provided.
Has a circuit for generating a specific code for transmission / reception recognition, and transmits the specific code superimposed on the operation command code.
There has been proposed a remote control device in which the operation command of the remote control unit 30 is determined by confirming the coincidence with a specific code stored in advance in the first main body control unit 42. This is because the transmission signal from another remote control device of the same type is
If the above-mentioned specific code for transmission / reception recognition does not match even if received, it is determined that the code is invalid, so that malfunction can be prevented. As a method of setting the specific code, for example, when one of the operation switches 32 of the remote control unit 30 is used as a reset switch and the switch is turned on, the remote control unit 33 of the remote control unit 30 controls the remote control unit 30 and the device main unit 31. Is generated as a code having a content different from that of the previously set state and is automatically transmitted, and the device main unit 31 sets and stores the changed specific code in an internal storage unit in the main body control unit 42. . The operation of changing the specific code by the reset switch is performed by the remote controller 30.
This is necessary when the power supply battery is replaced, or when a remote control device of the same type is used nearby and a malfunction occurs.

[0007]

However, in the conventional remote control device as described above, in order to prevent the power supply battery of the device main body from being consumed, the receiving circuit is operated for the first time by pressing the standby switch to be in the receiving standby state. Once set, an operation command transmitted from the remote control unit can be received. However, if the standby switch is not pressed, the system does not enter the reception standby state.

Another problem is that the remote controller is easily lost. Further, when a plurality of remote control devices of the same type are used in the vicinity, the specific code for transmission / reception recognition between the remote control unit and the device main unit matches, and a malfunction due to interference occurs, the reset switch is pressed and the remote control unit and the device main unit are connected. It is necessary to reset the specific code for transmission / reception recognition and invalidate the signal from the other remote controller, and there is a problem that the operation is complicated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is preferable that a remote controller is configured to be attachable to and detachable from an apparatus main body, and that a remote control reception state of the apparatus main body is started when the apparatus is detached from the apparatus main body. It is another object of the present invention to provide an excellent remote control device with improved operability and portability by resetting the transmission / reception recognition specific code.

[0010]

According to the present invention, there is provided a remote controller having a main body and a remote controller detachably attached to the main body.
A is, the remote control unit controls the reset switch which operates in response to the mounting and detachment, and at least one operation command switch, the operation of receiving the indication of the operation command switch the main unit of the apparatus main body Generate a sign for
Remote control means for generating a transmission serial signal including the operation command code, and transmission means for converting the transmission serial signal generated by the remote control means to an electromagnetic wave and transmitting the electromagnetic wave, the remote control means further comprises: Device main unit
Receiving the instruction from the reset switch when the
A change finger for changing the transmission / reception recognition specific code of the main unit
Command code and a new specific code for transmission / reception recognition
And stores the stored change command code and the transmission / reception recognition feature.
Via the transmission means together with the operation command code
Configured to transmit, the apparatus main body, a receiving means for demodulating the transmitted serial signal by receiving the electromagnetic wave from the transmitting means of the remote control <br/> down unit, in response to the mounting and detachment of the remote control unit and remote control detachment detection switch for controlling the operation of the receiving means Te, identification code and variables for at least receiving recognition
Storage means for storing a command code , at least a specific code for transmission / reception recognition is rewritable, and a transmission serial signal demodulated by a reception means, analyzed and collated with the storage of the storage means to identify its contents, and The device according to the operation command code on the assumption that the transmission / reception recognition specific code matches.
Have a control means for controlling the operation of the main body, said control means
Further receives the change command code in the receiving means.
When the specific code for transmission and reception recognition of the storage means is the
To the transmission / reception recognition specific code received with the change command code
It is configured to control rewriting, and the
The transmission / reception recognition specific code and the transmission code stored in the
Only when the reception recognition specific code matches,
Control .

More specifically, the control means starts the operation of the receiving means by the operation of the remote control attachment / detachment detection switch when the remote control section is detached from the apparatus main body section, and continuously or intermittently from the remote control section at regular intervals. The transmitting serial signal can be detected, or the transmitting serial signal from the remote control unit can be detected at least continuously for a certain period of time after the operation of the receiving means is started, or The control means may be configured so that the remote control unit generates a plurality of sets of transmission serial signals including at least a change command code and a new transmission / reception recognition specific code by operating a reset switch when the remote control unit is attached to the device main body unit.

[0012]

According to the present invention, the remote controller is detached from the main body of the apparatus and the control means controls the receiving means to operate by the operation of the remote control attachment / detachment detection switch of the main body and starts the remote control receiving operation. At the same time, the remote control unit causes the remote control unit to start the operation of the remote control unit by the operation of the reset switch, and transmits a transmission serial transmission signal including the change command code and the transmission / reception recognition specific code from the transmission unit, and the device body unit Is received and demodulated by the receiving means, the control means writes the new transmission / reception recognition specific code sent together with the change command code into the storage means, and thereafter, it is assumed that the new transmission / reception recognition specific code is received. Thus, the reception code is allowed to be received.

Further, the control means continuously or intermittently transmits the signal from the remote control unit after the remote control unit starts the operation of the receiving means by the operation of the remote control attachment / detachment detection switch when the remote control unit is detached from the device main body unit. The remote control unit may detect a signal, or may detect a transmission serial signal from the remote control unit at least continuously for a certain period of time after the operation of the receiving unit is started, or By causing the remote control unit to generate a plurality of sets of transmission serial signals including at least the change command code and the new transmission / reception recognition specific code by the operation of the reset switch at the time of attachment to the device main unit,
Even in an unstable state at the start of reception of the receiving means, the change command code and the transmission / reception recognition specific code are reliably received and the transmission / reception recognition specific code is rewritten.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the remote controller according to the present invention will be described below with reference to FIG. 1 which is a block diagram of the remote controller and FIG. 2 which is a time chart of a transmission serial signal output from the remote controller A. I do. FIG.
, The remote control device comprises a remote control transmitting unit (hereinafter, referred to as a remote control unit) A and an audio device main unit (hereinafter, referred to as device main unit) B, and both A and B can be separated and independent. It is configured to be removable from the main body B.

In the remote control section A, at least one or a plurality of operation switches 1 and a reset switch 2 responsive to attachment / detachment to / from the apparatus main body section B are provided with an operation command code generation circuit in a remote control section 3 which is a remote control section. The output of the operation command code generation circuit 3b and the transmission / reception recognition specific code generation circuit 3c is also connected to the transmission signal generation circuit 3a in the remote control unit 3. . The storage means 3d is connected to the transmission / reception recognition specific code generation circuit 3c. The output of the remote controller 3 and the output of the local oscillator 5 are connected to a high-frequency converter 4, and the output is connected to a transmitting antenna 6. The reset switch 2 is configured to be turned on when the remote control unit A is mounted on the device main unit B, and turned off when the remote control unit A is detached from the device main unit B. The local oscillator 5, the high-frequency converter 4, and the transmitting antenna 6 are collectively referred to as transmitting means.

Next, in the main body B, the cord 7a of the earphone 7 is also used as a receiving antenna, and is connected to the output terminal of the low-frequency amplifier 10 via the coil 16 and to the high-frequency amplifier circuit 8 via the capacitor 17. Connected to
The main body control unit 11 serving as control means via the detection and demodulation circuit 9
It is connected to the. The DC power supply 12 is connected to a reproducing mechanism 14 including a tape mechanism 14a and a reproducing circuit 14b via a main body control section 11, and via a transistor switch 13 to a high-frequency amplifier circuit 8 and a demodulation / demodulation circuit 9 which are receiving means.
Power supply voltage. The audio output of the reproducing means 14 is supplied to the earphone 7 via the low-frequency amplifier 10 and the coil 16. The remote control attachment / detachment detection switch 15 is connected to the main body control unit 11.

Here, the main body control section 11 has a remote control section A
A control circuit 11a for performing a control output based on a detection signal obtained by demodulating a transmission signal from the control unit, and a storage unit 11b for storing a code corresponding to the decoded control signal in order to decode an encoded transmission signal. doing. The storage means 11b needs to be able to rewrite at least the transmission / reception recognition specific code.

The reproducing means 14 comprises a tape mechanism including a head 14a, a reproducing amplifier 14b, and the like. A motor and a plunger (not shown) for driving the mechanism are connected so as to be controlled by the main body controller 11. Have been. The remote control attachment / detachment detection switch 15 is turned on, for example, when the remote control unit A is attached to the device main unit B.
It is off in the detached state, and is connected so that the on / off state can be detected by the main body control unit 11.

The operation of the remote control device configured as described above will be described below. First, when attempting to control the device main body B by operating the remote control A, the remote control A is detached from the device main body B. Due to this detachment, the remote control attachment / detachment detection switch 15 in the device main unit B changes from the on state to the off state. The main body control unit 11 detects this state and outputs a control command to turn on the transistor switch 13. When turned on, the voltage of the power supply 12 is applied to the receiving circuit composed of the high-frequency amplifier circuit 8 and the demodulation and demodulation circuit 9 to operate, and the apparatus enters a radio wave standby state of a remote control command from the remote controller A.
At the same time, the first timer is cleared and started in the main body control unit 11.

Further, by detaching the remote control unit A from the device main unit B, the remote control unit A detects that the reset switch 2 is turned off, and the transmission / reception recognition specific code generation circuit 3c of the remote control unit 3 performs transmission / reception recognition. A specific code and its change command code are generated and stored in the storage unit 3d.
To memorize. At the same time, the transmission signal generation circuit 3a is operated to generate a transmission serial signal continuously or at regular time intervals under the control of the third timer.

An example of the transmission serial signal will be described with reference to FIG. In FIG. 2, the starting bit in the period a is
This is a time allocated to a code for causing the main body control unit 11 of the device main body unit to recognize the start of the transmission serial signal from the remote control unit A. The period b is the time of a remote control operation command code corresponding to the operation command switch 1 of the remote control unit A. The period c is the time of the transmission arrival confirmation specific code, and a predetermined code is given even if the operation command switch is not operated. The period d is a time when a sign is given when the reset switch 2 is turned on, that is, when the remote control unit A is attached to the device main body B. When the reset switch 2 is not turned on, there is no sign, and the data is 00.

In the period e, immediately after the remote control unit A is separated from the main unit unit B, a command code for changing the specific code for transmission / reception recognition, which is added only to the first or several subsequent transmission serial signals transmitted from the remote control unit. It's time. The period f is a time for forming the transmission / reception recognition specific code. The last period g is the time of an end bit for causing the main body control unit 11 to recognize the end of the serial transmission serial signal. The time from the period a to the period g is a continuous serial code string generated by the remote controller 3 and constitutes one transmission serial signal transmitted from the remote controller A. The one transmission serial signal is decoded by the main body control unit 11, and the main body unit executes each processing described with reference to FIG.

In actual transmission, in order to increase the reliability of transmission / reception, the second data is formed by reversing the 0s and 1s of the code from the period b to the period f of the data, and the first non-reversed data is generated. Is output as a set of continuous data. The transmission serial signal is determined by the main body control unit 11 when the first data matches the inverted data of the second data.

When the remote controller A is detached from the main body B, the corresponding reset switch 2 is turned off, the remote controller controller 3 is activated, and the transmission / reception recognition specific code generation circuit 3c stores the transmission / reception recognition specific code in advance. RO
M is selected from a combination of codes prepared in M or the like, or is generated by using a random number generating means, and at the same time, a change command code for changing the transmission / reception recognition specific code is generated and stored in the storage means 3d. . The transmission serial code shown in FIG. 2 is generated by the transmission signal generation circuit 3 a of the remote control unit 3, and the high-frequency converter 4 performs high-frequency conversion in a heterodyne manner by the local oscillation frequency given by the local oscillator 5, and amplifies the signal. It is output as a transmission signal, and the specific code for transmission / reception recognition is rewritten in the device main unit as described later. Thereafter, when the operation switch 1 of the remote control unit A is pressed, an operation command code is generated by the operation command code generation circuit 3b of the remote control unit 3 in accordance with the operation state of the operation switch 1, whereby the transmission signal is transmitted. The generation circuit 3a combines the transmission code as shown in FIG. 2 including the operation command signal, generates a transmission serial signal, and transmits the transmission serial signal in the same manner as described above.

At this time, the transmission / reception recognition specific code continues to be transmitted while the transmission serial signal is being generated based on the storage of the storage means 3d, but the change command code is transmitted at least once, preferably several times. Is preferred. This is because if the transmitting circuit and the receiving circuit do not immediately start up, the first code may not be reliably received.

In the equipment main body B, the transmission signal from the remote controller A is received as the reception antenna with the code 7a of the earphone 7, and the coil 16 blocks the reception high-frequency component from conducting to the low-frequency amplifier 10. The signal is amplified by the high-frequency amplifier circuit 8 via the capacitor 17, demodulated by the detection demodulation circuit 9, and compared with the code stored in the storage unit 11 b and the code in the transmission data in the main body control unit 11 in a normal state. When decrypted and recognizing the change instruction code of the transmission / reception recognition specific code, the transmission / reception recognition specific code stored in the storage unit 11b is rewritten and stored in the transmitted new transmission / reception recognition specific code. After this, the storage means 11b
The transmission / reception recognition specific code and the operation command code in the received data are compared and decoded. If the transmission / reception recognition specific code matches, the control command corresponding to the operation of the operation switch 1 is output, and the reproduction is performed based on this. The operation of the device body B such as the means 14 is controlled. When the remote control unit A is attached to the device main unit B from a state where the remote control unit A is detached from the device main unit B, the remote control attachment / detachment detection switch 1 of the device main unit B
5 is turned on, and the operation of the apparatus main body is stopped by the operation of the main body control unit 11.

Here, FIGS. 3 (a) and 3 (a) are perspective views showing a state where the remote control unit A is mounted on the apparatus main body B.
A configuration example of the reset switch 2 and the remote control attachment / detachment detection switch 15 will be described with reference to FIG. 3B which is a partial cross-sectional view showing a mounting state of the remote control unit A to the device main body B viewed from the direction. In the figure, there are four holding members 23 around the concave portion 21a of the device main body housing 21 of the device main body portion B, and the rotating shaft 23a is fitted to the bearing portion 21b of the concave portion 21a and is rotatably held. However, the holder 23 has its rotating shaft 23
a is sealed by the sealing portion 21 and the projection 23
b is held by the device main body housing 21 by being urged toward the inner wall of the device main body housing 21 by the spring 24, and in a state of holding the remote control unit A, the holding unit 23 c of the holder 23 is Recess 2 of remote control housing 22
2a.

In this state, the protrusion 22 of the remote control housing 22 is
b is an actuator 1 of the remote control attachment / detachment detection switch 15
5a is pressed to bring the contact pieces 15b and 15c into contact with each other to turn on. Similarly, the projection 21e of the device main body is fitted into the inside of the remote control housing 22 through the opening 22c, presses the actuator 2a of the reset switch 2, and brings the contact pieces 2b and 2c into contact to turn on.

When the user holds the remote control housing 22 of the remote control part A and pulls out the remote control housing 22 in the direction of arrow Y, the holder 23 rotates in the directions of arrows R and L against the elasticity of the spring 24, and the holder 23c
Is detached from the concave portion 22a of the remote control housing 22, the remote control portion A is detached from the device main body portion B, and at the same time, the convex portions 22b, 21
e is the actuator 15 of the switch 15, 2
The switches 15 and 2 are no longer pressed, and the switches 15 and 2 are turned off.

Although the case of the normal operation has been described above, an operation such as a method of notifying when the remote control operation is disabled due to a special situation, particularly, a situation where the remote control unit A is far away from the device main unit B is described. The flow in which the control unit 11 controls each unit will be described using the control flows shown in FIGS. 4, 5, and 6 in combination. First, a control flow showing a case of continuous reception of the device main unit B shown in FIG. 4 will be described. The control circuit 11a clears the first timer in step S1, detects the detachment of the remote control unit A in step S2,
When the remote control attachment / detachment detection switch 15 changes from on to off, the main body control unit 11 issues a control output for turning on the transistor switch 13 in step S3, and enters a standby state for a remote control signal.

Next, in step S4, the presence or absence of a remote control transmission signal is determined. If there is a signal, the flow advances to step S5 to decode the transmission code, and in step S6, whether or not there is a change command code in the transmission data. Is detected, and in some cases, the simultaneously received transmission / reception recognition specific code is stored in the storage means 11b in step S7 as a new transmission / reception recognition specific code. In steps S8 and S11, it is determined whether the code is an operation command code or a release command code. Here, when the signal includes the operation command code, the process proceeds from step S8 to step S9.
In step S10, the main body control unit 11 issues a control output of the operation of the device main unit B such as the reproducing unit 14, performs a predetermined operation of the device main unit B in step S10, and returns to step S1 again.

On the other hand, if the release command code is received in step S11, the process proceeds to step S12, where a control output for turning off the transistor switch 13 is issued, and the receiving circuit stops the remote control signal standby state. If there is no remote control transmission signal in step S4, the first timer is started in step S13,
If the first timer does not reach the first period of 3 seconds in step S14, the process returns to step S4. If the first timer has reached 3 seconds, it is determined in step S15 that the remote control is impossible and the reproduction circuit 14b of the reproduction means 14 or At least a notification method is issued from the earphone 7 through the low-frequency amplifier 10 to emit a warning sound for a certain period of time, and in step S16, the first timer is cleared and the process returns to the entry side of step S4. .

Next, a control flow for the case of intermittent reception of the apparatus main unit B shown in FIG. 5 will be described. Steps S1 to S12 are exactly the same as those in FIG. After step S2, a first timer for remote control disable notification is started in step S17, and if a remote control transmission signal cannot be received in step S4, the process proceeds to step S18 to start a second timer for intermittent reception. In step S19, the second
If the timer has not elapsed for 0.01 second, the presence or absence of a remote control transmission signal is checked in step S20. If there is, the flow proceeds to step S5, and if not, the flow returns to step S19.

If 0.01 seconds have elapsed in step S19, the transistor 13 is turned off in step S21 to release the remote controller standby state. In step S22, the process waits for 0.09 seconds. If not, the process proceeds to step S21. return,
If the time has elapsed, it is checked in step S23 whether the first timer has elapsed for 3 seconds. If the time has not elapsed, the process proceeds to step S3. If the time has elapsed, it is determined in step S24 that the remote controller cannot be used. In the same manner as in the case described above, a notice is issued by issuing a warning sound for a fixed time through the earphone 7, the first timer is cleared in step S25, and the process returns to step S17 to continue the operation. As described above, the control circuit 11a sets 0.01 at every 0.1 second which is the second cycle.
The transmission is controlled so as to perform reception for a second, whereby the transmission from the remote control unit A is confirmed.

Next, a control flow of the remote controller A shown in FIG. 6 will be described. Since the remote controller A is usually small, the case of intermittent transmission will be described first in consideration of battery consumption. In step S31, the remote control unit 3 detects that the remote control unit A has detached from the device main unit B by turning off the reset switch 2. The remote control unit 3 is activated in step S32, and the transmission / reception recognition specific code is set in step S33. The generation circuit 3c generates a change command code and a transmission / reception recognition specific code and stores them in the storage unit 3d.
In step S34, the transmission serial signal is synthesized by the transmission signal generation circuit 3a, output as a transmission signal to the high frequency converter 4, and transmitted in step S35.

In step S36, it is assumed that the switch 2 of the remote controller has not been turned on, and it is checked in step S37 whether the operation command switch 1 has been operated. If it has been operated, the operation command code generation circuit 3b is operated in step S38.
To generate an operation command code. In step S39, the transmission signal generation circuit 3a combines the transmission serial code including the new transmission / reception recognition specific code, and outputs the resultant signal to the high-frequency converter 4 as a transmission signal and transmits it in step S40. And step S
Returning to the entry side of 36, the operation is repeated.

On the other hand, if the operation command switch 1 is not operated in step S37, the transmission signal generation circuit 3a generates a transmission arrival confirmation code in step S41, and the serial signal including the code is transmitted in step S42 to the transmission signal generation circuit 3a.
Are transmitted in step S43, and the third timer is cleared and started in step S44. Step S
At 45, it is checked whether the switch 2 of the remote control unit A has been turned on. If the switch 2 has not been turned on, it is monitored at step S46 that the third timer reaches 1 second which is the third cycle. Returning to step S41, the above operation is repeated, and if the operation command switch 1 is operated in step S47 before the time reaches 1 second, the flow goes to step S38 to generate an operation command code, and a specific code for transmission / reception recognition is added. In step S39, the transmission serial signal is synthesized, and in step S40
To send. Thereafter, the operation returns to the entry side of step S36 to repeat the operation. If there is no operation of the operation command switch 1, the process returns to step S45 and waits for one second.

When the reset switch 2 is turned on in step S36 or S45, or when the reset switch 2 is turned on by attaching the remote control unit A to the main body unit B, in step S48, the identification for transmission / reception recognition of the remote control unit 3 is performed. The code generation circuit 3c generates a reception state release command code. Then, in step S49, the transmission signal generation circuit 3a
Are combined as a transmission serial signal, and output and transmitted as a transmission signal to the high-frequency converter 4 in step S50.
Finally, the remote control unit 3 is stopped in step S51, the operation of the remote control unit A is stopped, and the process ends.
In the above operation, if the step of the operation of the third timer is omitted, intermittent transmission is not performed, and continuous transmission can be performed.

In consideration of the rise of the circuit operation of the remote control unit A and the device main unit B, as a device for reliably rewriting the transmission / reception recognition specific code, for example, the control circuit 11
“a” indicates that, even in the case of intermittent reception, transmission from the remote control unit A is performed at least continuously for a certain period of time after the remote control unit A starts operation of the receiving means by the operation of the remote control attachment / detachment detection switch 15 when the remote control unit A leaves the device main unit B The remote control unit of the remote control unit A may be configured to detect a serial signal, or at least immediately after the reset switch 2 is operated when the remote control unit A is attached to the device main unit B, a new transmission / reception signal may be transmitted. A plurality of sets of transmission serial signals including the specific code for recognition may be generated.

Further, when the transmission / reception recognition specific code of the device main body is not determined, such as when the power to the device main body B is turned on, immediately after the remote controller A is detached from the device main body B, the transmission from the remote controller is performed. Even if the transmission serial signal to which the change code of the transmission / reception recognition specific code is given cannot be received, the transmission serial signal generated by the subsequent remote control operation command or the transmission serial signal to which the transmission arrival confirmation specific code is added The main body control unit 11 can determine and store the transmission / reception recognition specific code by using the transmission / reception recognition specific code in the period f present therein.

In the above embodiment, the device body B
Has been described as being caused by the generation of the reception standby state release command code from the remote controller A, but it may be performed by the operation of the remote controller attachment / detachment detection switch 15, or both may be operated. . The numerical values illustrated are merely examples, and the present invention is not limited to these numerical values.

Also, in the present embodiment, the detection of the inability to receive the remote control transmission signal has been described as being performed by determining whether or not the transmission arrival confirmation specific code can be received. Instead of providing the transmission arrival confirmation specific code in the serial signal, the reception of the transmission / reception recognition specific code may be detected to detect whether or not the remote controller can be used.

A plurality of reception state release command switches and an operation command switch are also used by one operation button, and when the switch is pressed once, pressed twice within a predetermined time, or long-pressed for a predetermined time or more, respectively. To distinguish the operation status of
It may be regarded as the state of the reception state release command. This can be achieved by changing the configuration of the operation command code generation circuit 3b of the remote control unit 3.

In the embodiment, the reset switch 2 or the remote control attachment / detachment detection switch 15 reverses the detection logic in the transmission signal generating circuit 3a or the main body control unit 11 when it is desired to reverse the on / off state in the attached / detached state. What should I do?

In the above embodiment, after the remote control unit A has separated from the device main unit B, the remote control
The timer starts counting, and when the preset time is exceeded, the serial transmission signal including the above-mentioned transmission arrival confirmation specific code or transmission / reception recognition specific code is stopped or continuous transmission is stopped or received. It may be configured to transmit a serial transmission signal including the standby state release code. In this way, the remote controller is notified that the remote controller is disabled. For example, when the device main body B is not used, it is possible to prevent the user from forgetting to attach the remote controller A to the main body and to continue the operation unnecessarily.

Further, the operating portions of the reset switch 2 and the remote control attaching / detaching detection switch 15 may be depressed from their respective housings so that they are not inadvertently pressed and operated when unnecessary. If necessary, it may be configured to be operated by pressing with a tip of a ball-point pen or the like.

In this embodiment, the remote control disabled state is notified by a warning sound from the earphone 7. However, instead of the earphone, the operation of the sounding means and vibration means provided in the apparatus main body B, or the LED liquid crystal It may be performed by visual display means such as display.

Further, in this embodiment, the example of the headphone stereo has been described. However, the technology which can be applied to a CD player and other portable audio equipment driven mainly by a battery, and if necessary, a video equipment and an equipment which is not carried is required. Needless to say.

As described above, according to the present embodiment, the remote control signal reception standby / release state described in the conventional example is selected by using the remote control unit without turning on / off the standby switch of the apparatus body. At this time, when the device is detached from the device body, the device body automatically selects the reception standby state and is automatically rewritten with a new transmission / reception recognition specific code. When the remote control unit is attached to the device main unit, the reception standby state is automatically released.

Also, the remote control unit A is too far from the main unit unit B, a metal object is interposed therebetween, or the battery of the remote control unit A is exhausted, so that the remote control unit cannot be operated. May be notified to the user.

[0051]

As described above, according to the present invention, there is provided a remote control device including a device main unit and a remote control unit detachably mounted on the device main unit, wherein the remote control unit is connected to the device main unit. A reset switch responsive to attachment and detachment, at least one operation command switch, and receiving a command from the operation command switch, generating a code for controlling the operation of the device main body, and transmitting the code including the operation command code. Remote control control means for generating a serial signal, and transmission means for converting the transmission serial signal generated by the remote control means to electromagnetic waves and transmitting the electromagnetic wave, the remote control means,
Further, the reset switch at the time of detachment from the device main body is provided.
Switch, the transmission / reception recognition feature of the
A change command code for changing the constant code and a new transmission / reception recognition feature
A constant code is generated and stored, and the stored change
Command code and the transmission / reception recognition specific code together with the operation command code.
Via the transmitting means configured to transmit to the machine <br/> body portion includes a receiving means for demodulating the transmitted serial signal by receiving the electromagnetic wave from the transmitting means of the remote control unit, the remote control unit A remote control attachment / detachment detection switch that controls the operation of the receiving means in response to the attachment and detachment of the storage means, storing at least a transmission / reception recognition specific code and a change command code , and at least a storage means capable of rewriting the transmission / reception recognition specific code, The transmission serial signal demodulated by the receiving means is analyzed and collated with the storage of the storage means to identify its contents, and the operation is performed on the assumption that the transmission / reception recognition specific code of the storage means matches.
Have a control means for controlling the operation of the apparatus body in response to an instruction code, said control means further previously in said receiving means
When receiving the change command code,
Receiving the specific code for reception recognition together with the change command code;
Configured to control rewriting to specific codes for transmission / reception recognition
It was done .

Then, transmission and reception transmitted from the remote control unit
Identification code for recognition and transmission / reception recognition stored in the main unit
The remote control can be used only when the specified code matches.
Are those that are the ability only operating to disengage from the main unit when using the remote control unit, automatically the main unit is selected in the reception standby state Rutotomoni, a new reception recognition identification code in its Because it is rewritten, it is convenient to carry the remote control and can operate it securely.
In addition, the newly rewritten transmission / reception recognition specific code reduces the possibility of interference with remote control operations of other remote control devices. If interference occurs, it can be easily avoided simply by attaching and detaching it again .

In the present invention, the control means transmits the signal from the remote control unit at least continuously for a certain period of time after the remote control unit starts the operation of the receiving means by the operation of the remote control attachment / detachment detection switch when the remote control unit is detached from the device main body unit. The remote control unit may be configured to detect a serial signal, or the remote control unit may transmit the transmission serial signal including at least a change command code and a new transmission / reception recognition specific code by operating a reset switch when the remote control unit is attached to the device main body unit. Since a plurality of sets of signals can be generated, the specific code for transmission / reception recognition can be rewritten more reliably, and a remote control device excellent in operability and portability can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram of a remote control device according to an embodiment of the present invention.

FIG. 2 is a time chart of a transmission serial signal from the same remote controller.

FIG. 3A is a perspective view showing a state where the remote controller is attached to the device main body, and FIG. 3B is a partial side sectional view showing a state where the remote controller is attached to the device main body.

FIG. 4 is a control flow chart in the case of continuous reception of the device main body part.

FIG. 5 is a control flow chart in the case of intermittent reception of the device main body unit as well.

FIG. 6 is a control flowchart of the same remote control unit.

FIG. 7 is a block diagram of a conventional remote control device.

[Explanation of symbols]

 Reference Signs List A Remote control unit B Equipment main unit 1 Operation command switch 2 Reset switch 3 Remote control control unit (remote control means) 3a Transmission signal generation circuit 3b Operation command code generation circuit 3c Transmission / reception recognition specific code generation circuit 3d Storage means 4 High frequency converter 5 Local oscillator 6 Transmission antenna 7 Earphone 8 High frequency amplifier circuit 9 Detection / demodulation circuit 10 Low frequency amplifier 11 Main unit control unit (Main unit control unit) 11a Control circuit 11b Storage unit 12 DC power supply 13 Transistor switch 14 Reproduction device 15 Remote control detachable switch

Claims (4)

(57) [Claims] 1. A remote control device comprising: a device main unit; and a remote control unit detachably attached to the device main unit.
Te, the remote control unit includes a reset switch which operates in response to the mounting and detachment of the main unit, and at least one operation command switch, before
Remote control means for generating a code for controlling the operation of the device main body in response to an instruction from the operation command switch and generating a transmission serial signal including the operation command code, and a transmission serial signal generated by the remote control means Transmitting means for converting a signal into an electromagnetic wave and transmitting the electromagnetic wave, wherein the remote control means further comprises:
In response to the instruction of the reset switch when leaving,
Command code to change the specific code for transmission / reception recognition of the main unit
Generate and store a new code and a new transmission / reception recognition specific code
The stored change command code and the transmission / reception recognition specific code
Signal with the operation command code via the transmitting means.
The device main body unit receives an electromagnetic wave from a transmission unit of the remote control unit and demodulates the transmission serial signal; and the reception unit responds to mounting and detachment of the remote control unit. A remote control attachment / detachment detection switch that controls the operation of the remote controller, at least a transmission / reception recognition specific code and a change command code are stored, and at least the transmission / reception recognition specific code is rewritable. Analyzing the serial signal, collating it with the storage of the storage means, identifying its contents, and assuming that the transmission / reception recognition specific code of the storage means matches, the device main body according to the operation command code
Have a control means for controlling the operation, said control means further the change command marks the receiving means
When receiving the transmission / reception recognition feature,
Transmission / reception recognition of receiving a constant code together with the change command code
The transmission / reception recognition specific code transmitted from the remote control unit and the device.
Matches with the transmission / reception recognition specific code stored in the main unit
The remote control can be controlled only when
Remote control device to be. Wherein the control means is a remote control unit starts the operation of the receiving means by the operation of the remote control detachment detection switch when disengaged from the main unit, from intermittently remote control unit for each continuously or constant period 2. The remote controller according to claim 1, wherein the remote controller detects a transmission serial signal. Wherein the control means transmits the serial signals from at least continuously remote unit predetermined time from the start of the operation of the receiving means by remote control detachment operation of the detection switch when leaving the remote control unit from the main unit 3. The remote control device according to claim 2, wherein the remote control device detects an error. 4. A remote control unit, the remote control unit is intended to plural sets generating transmission serial signal including at least changing command code and the new receive recognition for a particular code by the operation of the reset switch at the time of departure from the main unit The remote control device according to claim 1.