JPH0341650A - Remote controller - Google Patents

Abstract

PURPOSE:To prevent the malfunction caused by the interference from other same kind of devices placed adjacently, and also, to execute various controls by transmitting an encoding control signal and a prescribed pattern signal to a reproducing machine body side from a receiving side, and bringing the operation of the reproducing machine body to remote control based on a detection output of a pattern detecting means. CONSTITUTION:An encoding means 81 for encoding a control signal and a pattern generating means 86 for generating a prescribed pattern signal are loaded on a receiver 6, and also, a decoding means and a pattern detecting means for detecting the prescribed pattern signal are provided on a reproducing machine body side. In such a state, the same pattern signal is set to the pattern generating means 86 and the pattern detecting means in a state that the reproducing machine body and the register 6 are coupled, an encoding control signal and a prescribed pattern signal are transmitted to the reproducing machine body side from the receiver 6 side, and the operation of the reproducing machine body is brought to remote control, based on a detection output of the pattern detecting means. In such a way, various control can be executed, and also, the operation caused by an interference from other same kind of devices placed adjacently is prevented.

Description

[Detailed description of the invention] The present invention will be explained in the following order.

8. Industrial field of application B 1. Existing requirements of the invention C. Prior art D. Problem to be solved by the invention E. Means for solving the problem (Figures 1 and 2) F
Effect G Embodiment G, overall configuration of the embodiment (Figs. 1 and 2) G2 Audio signal transmission system (Figs. 1 and 2) 03 Control signal transmission system (
Figures 1 and 2) 04 Generation of control signals (Figures 3 and 4) G Other embodiments (Figure 5) The present invention relates to a remote control device suitable for an audio signal regenerator.

B. Summary of the Invention The present invention is a remote control device for a wireless transmission type audio signal reproducing machine, which is equipped with a commander on the player side and on the detachable headphone side, and transmits a coded control signal and a predetermined pattern signal from the headphone side. By detecting the pattern signals received by the player and identifying the control signals of the player and other control signals, the player can control various operating modes of the player and prevent malfunctions caused by interference from other similar devices. This is to ensure that this is prevented.

C. Conventional technology As a headphone-type cassette player (hereinafter simply referred to as a "player") such as the Walkman (registered trademark),
It is known that a wireless transmission method is used between the player and headphones.

FIG. 6 is a perspective view showing the appearance of an example of the wireless player, in which (1) is the player and (6) is a dedicated receiver for the headphones.

In the player (1), when the left and right channel stereo audio signals R are played back from the tape cassette (not shown), this signal R
is an FM signal SL using 2vi transmission with a predetermined frequency interval,
The signals SL and St are further transmitted to the receiver (6).

Then, in the receiver, the FM from the player (1)
When the signal S t,−3a is received, this signal SL+S
, the audio signal RI, R is demodulated, and this signal RI,
R indicates the left and right sound units (7) of the headphones (7).
L), (7R).

In this case, the receiver (6) may be half the size of a business card or less.

Therefore, when listening to a cassette while commuting, for example, on the train, you can put the player (1) in your purse or purse, and put the receiver a (6) in your jacket breast pocket, or use the clip to put it on your collar or necktie. The headphones (7) can be used without the cord getting in the way.

The distance at which the receiver (6) can be used away from the player (1) is 1.5 m, taking into consideration the Radio Law and cases where nearby people are using similar wireless players.
It is considered to be a degree.

Literature: Japanese Patent Application No. 1983-254966
No. 8825) Japanese Patent Application No. 62-280489, etc. D Problems to be Solved by the Invention By the way, in the wireless player described above, when stopping playing a tape, the power switch of the receiver (6) is turned off and the player is turned off. The player (1) must be placed in stop mode by pressing the stop button (1).

However, it is common for the player (1) and headphones (7) to be used separately (this is why they are wireless), and when the receiver (6) is turned off, Sometimes I forget to put the player (1) I put in the machine into stop mode.

Then, the player (1) wastes the battery by continuing to use the playback mode until the tape is played to the end and the auto shaft off mechanism is activated. Or, if the player (1) is set to auto-repeat mode, it will continue playing until the battery runs out.
It still wastes battery power.

Furthermore, even if you do not forget to set the player (1) to stop mode, you may turn off the power to the receiver (6), and even if you do not forget to put the player (1) in the stop mode,
) is a pain to press the stop button.

In order to solve the above-mentioned problems, the receiver (6) is of a super-hetero gain type, and the leakage of the local oscillation signal when the power is turned on is increased within the allowable range, and the leakage of this local oscillation signal is The presence of the signal is detected in the player (1), and when the locally transmitted signal is not detected for a predetermined period of time, it is determined that the receiver (6) is powered off, and the player (1) is set to a stop mode. The applicant has already proposed a remote control system (see Japanese Patent Application No. 63-264790).

However, in the previously proposed wireless player,
FM signals S of the same pair of frequencies from all players,
and S+t are being transmitted. Therefore, since the local oscillator signals of all receivers are also set to the same frequency,
For example, if the person seated next to you on a commuter train uses the same type of wireless player, the locally transmitted signals leaking from the other player's receiver will interfere with each other, interfering with normal remote control. There was a problem with being exposed.

Additionally, there was a problem in that the number of controllable modes was limited.

In view of these points, the present invention aims to propose a remote control device that prevents malfunctions due to interference from other devices of the same type in the vicinity and is capable of performing a wide variety of controls.

E. Means for Solving the Problems The first aspect of the present invention is a remote control device for a separate audio signal reproducing machine, in which an audio signal reproduced by a main body (1) of the reproducing machine is wirelessly transmitted to a receiver a (6). and a coupling means (47) for detachably coupling the main body of the player and the receiver.

(87) is provided, and an encoding means (87) is provided for encoding the control signal.
1) and a pattern generating means (86) for generating a predetermined pattern signal. ) is provided on the playback main body side, and the same pattern signal is set in the pattern generation means and pattern detection means with the playback main body and receiver connected, and the coded control signal and predetermined signal are transmitted from the receiver side. This remote control device transmits a pattern signal to the player main body side, and remotely controls the operation of the player main body based on the detection output of the pattern detection means.

A second aspect of the present invention is a remote control device for a separate audio signal reproducer in which an audio signal reproduced by a reproducer main body (1) is wirelessly transmitted to a receiver (6), A coupling means (47) for detachably coupling the machine to the machine.

(87) is provided, and an encoding means (87) is provided for encoding the control signal.
1) and a pattern generating means (86) for generating a predetermined pattern signal. ) is provided on the player main body side, and a series of pattern signals commonly set in the pattern generation means and pattern detection means are switched in synchronization with each other, and the encoded control signal and the predetermined pattern signal are transmitted from the receiver side. This is a remote control device that transmits the information to the main body of the playback machine and remotely controls the operation of the main body of the playback machine based on the detection output of the pattern detection means.

F Effects According to this configuration, a wide variety of controls are possible, and malfunctions due to interference from other devices of the same type in the vicinity are reliably prevented.

G. Embodiment An embodiment of the remote control device according to the present invention will be described below with reference to FIGS. 1 to 4.

Structure of G1 Embodiment The overall structure of an embodiment of the present invention is shown in FIGS. 1 and 2.

FIG. 1 shows an example of a player (1), and FIG. 2 shows an example of a receiver (6). In this embodiment, a control operation unit (commander) (8) is mounted on the receiver (6) side. Further, the receiver (6) is detachably coupled to the player (1) by an appropriate coupling mechanism (not shown).

In the player (1), (lO) is an audio signal reproducing circuit, (20> is an audio signal transmitting circuit, (40) is a system control circuit, and (50) is a control signal receiving circuit.

Further, in the receiver (6), (60) is an audio signal receiving circuit, (80) is a system control circuit, and (90) is a control signal transmitting circuit.

The control circuit (80) on the commander (8) side is provided with a pattern generation circuit (86) to generate a pulse train of a predetermined pattern, and transmit the pulse train superimposed on the coded control signal.

The control circuit (40) on the side of the player (1) is provided with a pattern detection circuit (46) to detect the reception of pulse examples of a predetermined pattern, and identify the own and other control signals based on the detection output of this circuit. do. Thereafter, the operation mode of the player (1) is switched in response to a coded control signal from the commander (8).

When the player (1) and the receiver (6) are coupled by a mechanism such as that disclosed in Japanese Utility Model Publication No. 15355/1983 by the present applicant, the contacts (47) and (87) abut, Pattern detection circuit (46) and pattern generation circuit (
86) is used to set the initial conditions.

G2 audio signal transmission system In Figure 1, the power switch (36) of the player (1)
) is turned on, power supply voltage is supplied to the system control circuit (40), and the player (1) enters a standby state.

In this standby state, when the playback button (43□) is pressed, the system control circuit (40) forms a playback mode control signal corresponding to this button operation and supplies it to the solenoid (31), which controls the playback head (IIL). (IIR) (IIR
) is brought into contact with the tape MT, and the capstan (
33), a pinch roller (34) is brought into contact with the pinch roller (34). moreover,
In conjunction with this, the switch (35) is turned on, and the battery (
37) is applied to the regeneration circuit (1) through the switch (35).
0) and is also supplied to the motor (32), and the player (1) enters the playback mode. Note that this state is maintained by a control mechanism (not shown).

When in this playback mode (and other operating modes), pressing the stop button (434) will cause the end (IIL).

(IIR) and the pinch roller (34) return to the stop mode position, the switch (35) is turned off, the playback circuit (10) and the motor (32) become inactive, and the player ( 1) becomes the stop mode.

In the playback mode, the outputs of the pair of playback heads (IIL) and (IIR) of the player (1) are connected to the equalization circuits (12L) and (12R) of the audio signal playback circuit (TO).
and are equalized according to the magnetic characteristics of the tape MT, such as the so-called normal position and metal position, and the gain control amplifier circuits (13L) and (1
3R) to an appropriate level. Regeneration circuit (
10) includes a noise reduction circuit, a tone quality adjustment circuit, etc., which are not shown. The output signal of the reproducing circuit (10), R
is taken out to the stereo headphone jack (14), and is also connected to the modulation amplifier (21L) of the transmitting circuit (20).
, FM modulation circuit (22L) through (21R),
(22R) as its modulation signal.

The resonant circuit of the original carrier wave oscillator in the FM modulation circuits (22L) and (22R) includes a coil and a variable capacitance diode for FM modulation, and an amplifier (
21L), audio signals from (21R), R
is supplied as a control voltage (modulation signal) and the FM signal SL
, SR are formed.

However, in this case, if the original carrier wave frequencies of the signals SL and SR are ft, f-, then this carrier wave frequency f,.

rr is the original transmission frequency (wL transmission frequency) f L
+f is a fraction of I, for example, f L = 12.67 MIIz f r =
It is assumed to be 12.2tMHz.

Then, these FM signals SL, S, l are transmitted to the mixing circuit (23
At the same time, an alternating signal S24 is taken out from the oscillation circuit (24), and this signal S
! 4 is supplied to the mixing circuits (23L) and (23R).

In this case, the resonant circuit of the oscillation circuit (24) is composed of a highly stable solid-state resonator. Furthermore, the signal S2'4 is, for example, the fifth harmonic due to its resonator, and the frequency f24 of the signal sz4 is, for example, fz4=88.67MFl.
It is assumed that z.

Then, such a signal S24 is sent to the mixing circuit (23L)
.

(23R), so the mixing circuit (23L),
From (23R), the frequency is f L = f , -f L = 88.67 - 12.67
=76, OMflz f *= f ta f r = 88.67 12.2
The FM signals St, S□ of 1-76.46 MHz and signal components of unnecessary frequencies are extracted.

The output signals of these mixing circuits (23L) and (23R) are supplied to bandpass filters (25L) and (25R), and only FM signals SL and SR with carrier frequencies fL and fi are taken out. , l is a high frequency amplifier (
26L) and (26R) to the antenna (27) and is transmitted from the antenna (27).

Further, in FIG. 2, when the power switch (76) is turned on, the voltage of the battery (77) is supplied to each part of the receiving circuit (60), and the receiver (6) enters the receiving mode.

Then, the FM signals SL, S from the player (1) are received by the antenna (61), and these signals SL, Sl
Bandpass filter (tuned circuit) that passes only l (62
) and the mixing circuit (64) through the high frequency amplifier (63)
At the same time, a local oscillation signal S65 having a frequency of, for example, f 6S=65.76MH2 is taken out from the local oscillation circuit (65), and this signal S6S is supplied to the mixing circuit (64).

In this way, in the mixing circuit (64), the signals SL, SR
is signal S. For example, f i = f L-f , = 76.0-65.76 = 1
0.24MHz f = = f ta f as =76.46 6
5.76=10.7M1 (frequency converted to intermediate frequency signals SL and SR of z.

Then, these signals SL and SR are transmitted through an intermediate frequency filter (71L) composed of, for example, a ceramic filter.
filter (71L), (7
Signals SL, S, are respectively taken out from intermediate frequency amplifiers (72L), (
72R) through the FM demodulation circuit (73L), (73
R) is supplied as an audio signal, R is demodulated, and this signal is output to an output amplifier (74L), (74R).
Through the headphone (7) unit (7L), (
7R).

At this time, the demodulated output of the demodulation circuit (73R) is supplied to the automatic frequency control (AFC) voltage formation circuit (75) to form the AFC voltage, and this AFC-voltage is supplied to the local oscillation circuit (65). AFC is then performed.

Therefore, the audio signals R and R reproduced from the tape MT can be listened to through the wireless headphones (7).

G. Control Signal Transmission System In FIG. 1, the system control circuit (40) on the player (1) side includes a decoder (41), which transmits the system on the commander (8) side via a wireless transmission system (described later). Control circuit (
80) is connected to the encoder (81).

The system control circuit (40) is supplied with running mode command signals corresponding to the tape running switching buttons (43,) to (43,) on the player (1) side, and is supplied with battery power via the power switch (36>). Characteristic command signals from various characteristic changeover switches (441) to (44n) connected to (37) and volume command signals from a variable resistor (45) are supplied.In the system control circuit (40), characteristic Appropriate characteristic control signals are formed based on the command signal and the volume command signal, and the equalization circuits (12L) and (12R) of the audio signal reproduction circuit (10>) and the gain control amplifier circuit (
13L), (13R), etc.

Furthermore, an appropriate driving mode control signal is formed based on the driving mode command signal and is supplied to the solenoid (31) of the driving mode control system (30).

On the commander (8) side in Fig. 2, there are also tape running direction switching buttons (83□) to (834) as on the player (1) side.
, characteristic changeover switches (84,) to (84n) and a variable resistor (85) are provided, and various similar command signals are supplied to the system control circuit (80), encoded in the encoder (81), and transmitted. It is supplied to the FM modulation circuit (91) of the circuit (90). The output of the modulation circuit (91) is supplied to the mixing circuit (92), where it is mixed with the oscillation signal supplied from the oscillator (93), for example f m = f z4 = 88.67M) (FM of the carrier frequency of z). It is converted into the signal St?.The bandpass filter (95
) and a high frequency amplifier (96), the FM signal SCT
is supplied to the antenna (97) and transmitted from the antenna (97).

In addition, as shown by the broken line, the output of the local oscillation circuit (65) of the receiving circuit (60) is connected to the mixing circuit of the transmitting circuit (90).
2), the oscillation circuit (93) can be omitted.

Then, in the player (1), the FM signal set from the commander (8) is received by the antenna (51>,
This signal Set is supplied to the mixing circuit (54) through the bandpass filter (52) and the high frequency amplifier (53), and the frequency is changed from the local oscillation circuit (55) to, for example, 99
．． A local oscillation signal of 37 MHz is supplied to the mixing circuit (54), the frequency of the signal SCT is converted to an intermediate frequency of, for example, 10.7 MHz, and this FM signal Set is
For example, through an intermediate frequency filter (56) and an intermediate frequency amplifier (57) composed of a ceramic filter,
The signal is supplied to an FM demodulation circuit (58), and a demodulated signal is extracted and supplied to a system control circuit (40).

In the decoder (41) of this system control circuit (40), the encoded command signal from the commander (8) side is decoded and the original various command signals are reproduced.

In the system control circuit (40), characteristic control signals and driving mode control signals similar to those described above are formed based on this regeneration command signal, and the regeneration circuit (10) and solenoid (3)
1) and various characteristics and driving modes are set.

Generation of G4 control signal As mentioned above, in this embodiment, the control circuit (80) on the commander (8) side is provided with a pattern generation circuit (86) that generates a pulse train of a predetermined pattern, and the
) side control circuit (40) is provided with a pattern detection circuit (46).

A similar pulse generation circuit (4) is installed on the player (1) side.
8), a clock generation circuit (88) is provided on the commander (8) side, the clock from this is directly supplied to the pattern generation circuit (86), and a contact (87c) is provided.
) and (47c) to a pattern generation circuit (48), and the output of the pattern generation circuit (48) is supplied as a reference signal to a pattern detection circuit (46).

Further, a gate (42) is provided on the input side of the decoder (41), and the detection output of the detection circuit (46) causes this gate (
42).

Further, the reset terminals of both pattern generation circuits (48) and (86) are commonly connected through contacts (47a) and (87a), and are grounded through a switch (89).

In this embodiment, both pattern generation circuits (48) and (8)
6) generates an m-bit gate code as shown in FIG. For example, when m=7, 2'=128 gate patterns are obtained.

Following this gate code, the encoder (81
) generates an n-bit control code as shown in FIG. For example, when n=5, 2'=32 types of control codes are obtained.

In this embodiment, with the player (1) and receiver (6) connected, the switch (89) is turned on to reset both pattern generation circuits (48) and (86).

In this state, appropriate pulses are supplied to the clock generation circuit (88) so that the same Mth (1≦M≦128) gate pattern is output from both the pattern generation circuits (48) and (86). The initial state is set to .

As described above, since the gate pattern is for identifying the control signals of the device and the others, a different gate pattern is assigned to each individual device.

For example, in a mini field, 1
Gate patterns from the 128th to the 128th are set cyclically.

When the player (1) and receiver a (6) are used separately, a control signal as shown in FIG.
0), the pattern detection circuit (46) detects whether or not the reference gate pattern from the pattern generation circuit (48) matches the received gate pattern.

When both gate patterns match, the detection output of the detection circuit (46) opens the gate (42), a coded control signal is supplied to the decoder (41), and the player (1) operates as desired. mode can be switched.

When other players of the same type exist in close proximity and interference occurs due to the same frequency, the pattern detection circuit (46) Since the required detection output is not obtained from the decoder (42) and the gate (42) is not opened, the control code is not supplied to the decoder (41), making it possible to avoid malfunctions due to interference at the same frequency.

Thus, according to this embodiment, the player side of the 2VtL wave transmitting wave wireless headphone type cassette player can identify its own and other control signals based on the gate pulse pattern transmitted from the headphone side together with the control code. This makes it possible to avoid malfunctions due to interference from other players of the same type.

Furthermore, in this embodiment, a wide variety of remote controls can be performed using coded control signals.

GsOther Embodiments Next, another embodiment of the remote control device according to the present invention will be described with reference to FIG.

FIG. 5 shows the configuration of the main parts of another embodiment of the invention. In FIG. 5, parts corresponding to those in FIGS. 1 to 3 described above are given the same reference numerals, and some explanations will be omitted.

In FIG. 5, a clock generation circuit (49) that continuously supplies clocks to the pattern generation circuit (48) is also provided on the player (1) side, and this clock generation circuit (49) is also provided on the player (1) side.
9) and a similar clock generation circuit (88) on the receiver (6) side.
F), transistors Q4 and Q,
on each side.

The emitters of both transistors Q and QII are grounded,
Each collector is connected to the power supply Vcc through resistors R1 and R1.
, and Vcc, and also to the input terminals of the clock generation circuits (49) and (88F). The bases of transistors Q4 and Q are connected to contacts (47d) and (87b) through resistors R1 and R8, respectively, and the corresponding contacts (47b) and (87d) are connected to power supplies Vcc4 and Vcc, respectively. . Also,
Reset terminals of both pattern generation circuits (48) and (86) are connected to contacts (47a) and (87a), respectively, and grounded through resistors R2 and Rt.

Then, a resistor R is connected between the contacts (47a) and (47d).
3 is connected, and the contacts (87a) and (87b
) between resistor R? is connected.

In this embodiment, the grounding contact (47g) on the player (1) side is formed to be long in the sliding direction shown by the arrow. The rest of the configuration is the same as that shown in FIG. 3 above.

In the embodiment of FIG. 5, the player (]) and the receiver (6
) and turn on both power switches (36) and (76) (see Figures 1 and 2),
Both transistors Q4 and Q are supplied with the power supply voltage of the other side to their respective bases, and are respectively turned on, and their collector potentials become r LOJ. Further, the potential of the reset terminals of both pattern generation circuits (48) and (86) becomes rHi.

In this state, when the player (1) and receiver (6) are slid relative to each other in the direction of the arrow, first, the three pairs of contacts (47a
), (87a) to (47d), and (87d) are in a non-contact state, and the reset terminals of the pattern generation circuits (48) and (86) become ground potential, and the regeneration circuits (48) and (86) is reset.

At the same time, the bases of transistors Q4 and Q8 are also at ground potential.

turns off, and each collector potential changes from r LOJ to r
"Hi".

After that, the ground contacts (47g) and (87g) become non-contact, and the player (1) and the receiving jIA (6)
and are separated by direct current.

As a result, both clock generation circuits (49) and (88F
) start in synchronization with each other, and this generation circuit (49)
and (88F), each pattern generation circuit (4) on the player (1) side and the receiver (6) side
8) and (86) sequentially and cyclically switch and output, for example, 128 gate patterns in synchronization with each other in steps of, for example, 10 seconds.

In this case, the period in which the same gate pattern appears will exceed 20 minutes, and the gate pattern will not match that of other players who started their clocks in synchronization with each other at intervals longer than 10 seconds, for example.

Therefore, in the embodiment of FIG. 5 as well, malfunctions due to interference from other players of the same type can be avoided in exactly the same way as in the previous embodiments.

In addition, in FIG. 5, resistor R8 or a pair of contacts (
Either of 47a) and (87a) can be omitted.

In addition, in the above embodiment, each pattern generation circuit of the same type of device outputs the gate pattern at the same time interval and in the same order, but the gate pattern of the pattern generation circuit of one set of player and receiver is If the order is controlled in conjunction using random numbers, even if multiple sets of devices are started synchronously within the same switching step of 10 seconds, different gate patterns can be obtained and malfunctions due to interference can be avoided. can.

In the above description, the player (1) is a cassette player, but it may be a CD player, a DAT player, or the like. Further, the antennas (27) and (51) may be of any type as long as they effectively act as antennas, and the antennas (61) and (97) may also be used with the headphones (7).
) can also be used for both purposes.

H Effects of the Invention As detailed above, according to the present invention, a commander is mounted on the player side and the detachable headphone side of a wireless transmission audio signal reproducing device, and a predetermined pattern is transmitted from the headphone side together with a coded control signal. The signal is transmitted to the player side, and the player side detects the received pattern signal to identify its own and other control signals, so it is possible to control the player's operation mode in a wide variety of ways, and to control the control signals from other similar devices. A remote control device that can reliably prevent malfunctions due to interference is obtained.

[Brief explanation of drawings]

FIGS. 1 and 2 are block diagrams showing the configuration of main parts of an embodiment of a remote control device according to the present invention, and FIG. 3 is a block diagram showing the structure of other main parts of an embodiment of the invention. , FIG. 4 is a diagram for explaining the operation of one embodiment of this invention, FIG. 5 is a block diagram showing the configuration of the main part of another embodiment of this invention, and FIG. 6 is an explanation of this invention. This is a diagram for (1) is a headphone type stereo player, (10) is an audio signal reproducing circuit, (20) is an audio signal transmitting circuit, (22)
],). (22R) is an FM modulation circuit, (40) and (80) are system control circuits, (41) is a decoder, (42) is a gate, (46) is a pattern detection circuit, (50) is a control signal receiving circuit, ( 6) is a receiver, (60) is an audio signal receiving circuit, (7) is a headphone, (8) is a commander, (81) is a
) is an encoder, (86) is a pattern generation circuit, (90
> is a control signal transmission circuit. Agent Hidemori Matsukuma 5th Figure 7 - Ylj Hongkin Water Tato Viewing Diagram Figure e

Claims (1)

[Claims] 1. A remote control device for a separate audio signal regenerator, in which an audio signal regenerated by the regenerator main body is wirelessly transmitted to a receiver, wherein the regenerator main body and the receiver can be attached and detached. A coupling means for freely coupling is provided, and an operation unit including an encoding means for encoding a control signal and a pattern generation means for generating a predetermined pattern signal is mounted on the receiver, and a decoding means and a predetermined pattern signal are provided. A pattern detecting means for detecting a signal is provided on the main body of the reproducing machine, and the same pattern signal is set in the pattern generating means and the pattern detecting means when the main body of the reproducing machine and the receiver are coupled. , the encoded control signal and the predetermined pattern signal are transmitted from the receiver side to the playback main body side, and the operation of the playback main body is remotely controlled based on the detection output of the pattern detection means. A remote control device characterized by: 2. A remote control device for a separate audio signal regenerator, in which the audio signal reproduced by the regenerator main body is wirelessly transmitted to a receiver, and a coupling means for removably connecting the regenerator main body and the receiver. The receiver is equipped with an operation section including an encoding means for encoding a control signal and a pattern generation means for generating a predetermined pattern signal, and a decoding means and a pattern detection means for detecting the predetermined pattern signal. means is provided on the playback main body side, and a series of pattern signals commonly set in the pattern generation means and the pattern detection means are switched in synchronization with each other, and the encoded control signal and the above are transmitted from the receiver side. A remote control device, characterized in that a predetermined pattern signal is transmitted to the main body of the playback machine, and the operation of the main body of the playback machine is remotely controlled based on the detection output of the pattern detection means.