JPS6148293A - Remote control system - Google Patents

Abstract

PURPOSE:To execute the control action corresponding to action mode indicating data only when reception part indicating data is coincident with transmission part indicating data by transmitting a control signal obtained by adding the reception part indicating data to the normal action mode indicating data. CONSTITUTION:In accordance with the operating situation of a mode switch 12 and VTR indicating switch 13, a processor 11 of a commander 10 produces, for instance, a serial signal and executes the encoding processing, after which it transmits said signal from a light emitting element 15 through a driver 14 with the aid of infrared ray. After the infrared ray from the element 15 is received by a photodetector 21 of a VTR20, it is decoded by a decoder 22 and transmitted to a system controller 23. A command indicating switch 24 for operating the VTR20 is connected to said controller 23. Through this switch 24 an action bit is decoded and the action in accordance with the data in an action mode is executed only when the commander indicating data is coincident with the VTR indicating data obtained by decoding a VTR indicating bit.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote control system for, for example, a video tape recorder.

[Conventional technology]

2. Description of the Related Art Conventionally, so-called remote control systems have been used to remotely control television receivers, video tape recorders (hereinafter referred to as VTRs), audio devices, and the like. Various methods are known as this remote control system, but for example, VT
For R, an infrared type is often used. Also,
Normally, a serial signal with a predetermined format consisting of operation mode specification pits that specify the operation mode of the VTR is used as a signal, and a signal that is encoded on this serial signal is transmitted by infrared rays from a so-called commander's light emitting element. It is now possible to do so. The signal from the light emitting element of the commander is received by a light receiving element on the VTR main body side, and then decoded to obtain the serial signal. Further, this serial signal is sent to a system controller composed of a CPU or the like, and the operation mode designation bit of the serial signal is decoded. As a result, data on the operation mode is obtained from the commander, and V'll'R performs operations such as recording and playback according to the data.

Incidentally, in recent years, with the spread of VTRs, an increasing number of users are using two VTRs to dub or edit recorded video tapes.

In such a case, it is necessary to have one VTR 5 perform a reproducing operation and the other VTR 5 to perform a recording operation. Here, when operating each VTR using the commander, each VT
There is no problem if the serial signal formats used in the R remote control system are different, but if they are the same, the two VTRs will perform the same operation due to the operation of either commander, resulting in the desired operation. The problem was that it was not possible to make the

Therefore, the present invention was proposed in view of the above-mentioned conventional problems, and when a plurality of devices equipped with a remote control system are operated by serial signals of the same format, each device is controlled independently by a commander. The purpose is to enable operation.

[Means for solving problems]

In order to achieve the above-mentioned object, the remote control system according to the present invention includes an operation mode specifying means for forming operation mode specifying data and a receiving section specifying means for forming receiving section specifying data. a transmitting section that transmits a control signal consisting of designated data and receiving section designated data; and a transmitting section specifying means that forms transmitting section designated data; and a receiving section that performs a control operation according to the operation mode specifying data only when the received receiving section specifying data match.

[Effect]

According to the present invention, a control signal obtained by adding receiving section specifying data to normal operation mode specifying data is transmitted from the transmitting section, and the receiving section receives this control signal and adds the receiving section specifying data and the receiving section specifying data. Control operations according to the operation mode designation data are performed only when the data match the transmission unit designation data.

[Example] Hereinafter, an example of the remote control system according to the present invention will be described in detail with reference to the drawings.

In this embodiment, the present invention is applied to a VTR remote control system.

1A and 1B are block diagrams showing the remote control system of this embodiment. FIG. 1A shows the configuration on the commander 10 side, and FIG. 1B shows the configuration on the VTR 20 side. In FIG. 1A, a mode switch 12 is connected to the processor 11 for specifying an operation mode such as recording, playback, fast forward, etc., and a mode switch 12 is connected to the processor 11 for specifying the VTR to be operated as described later. A switch 13 is connected. In the above sequence →111, a serial number SSE as shown in FIG. 2, for example, is formed depending on the respective operating states of the mode switch 12 and the VTR designation switch 13. That is, depending on the specified state of the operation mode by the mode switch 12, m
Bit ('m = natural number) operation mode designating bit is formed, and VTI' is set to V by the designating switch 13.
VT of n pi) (n - natural number) according to the specified state of TR
R designation bits are formed, and these bits constitute an l frame TF. Further, after the serial signal SSB is encoded by the processor 11, this encoded signal is sent to the driver 14. Thereby, a signal based on the serial signal SsE is transmitted from the light emitting element 15 using, for example, infrared rays.

The infrared rays from the light emitting element 15 are transmitted to the VT shown in FIG. 1B.
After being received by the light receiving element 21 on the R20 side, the decoder 2
2 and undergoes decoding processing. As a result, a serial signal SsE transmitted from the commander 10 side is obtained, and this serial signal SSE is sent to the system controller 23 constituted by a CPU or the like. The system controller 23 decodes the operation mode designation bit and VTR designation bit of the serial signal 85B. Further, a commander designation switch 24 is connected to the system controller 23 for designating the commander used to operate the VTR 20, and the data designated by the commander by the commander designation switch 24 and the VTR designation bit are decoded. Only when the obtained VTR specification data matches, the operation mode specification bit is decoded and operations such as recording, playback, fast forwarding, etc. are performed according to the obtained operation mode data.

Furthermore, as described above, the VTR designation bit of the serial signal SSH formed on the commander 10 side is n.
Since it is composed of bits, there are 2n combinations of commanders and VTRs. For example, assuming n-2, there are four combinations of commanders and VTRs, as shown in FIG.

Sunaichi, each commander 31.32, 33.34 and each V
There is a one-to-one correspondence with TR41, 42°43.44, and T%VTI (4
1, 42, 43, and 44 can be operated independently. In this case, each commander 31, 32, 33.
VTR specified data in 34 and each VTR 41, 42
, 43, and 44, it goes without saying that these data match the commander-specified data.

If all the commander designation switches of the GVTRs 41, 42, 43, and 44 are set to the commander 31, by changing the VTR designation switches of the commander 31, the four VTRs 41, 42, 43,
44 can be operated independently.

As mentioned above, the remote control system of this embodiment uses the serial signal SSE in which n bits of VTR specification bits are added to the conventional operation mode specification bit, so that each of the 2n VTRs can be connected to a corresponding one. It can be operated independently with the commander. Therefore, for example, when dubbing or editing a recorded videotape using two VTRs, even if the serial signal formats used in each remote control system are the same, both Only one VTR is operated by the operation of one of the commanders,
There is no way that both of these will work.

= 7 = Further, switching of the VTR to be designated and switching of the commander to be designated can be easily performed by the VTR designation switch 13 and the commander designation switch 24, respectively.

Note that the remote control system according to the present invention includes:
Of course, it can be applied not only to VTRs but also to remote control systems for television receivers, audio equipment, etc.

[Effects of the Invention] As is clear from the above description of the embodiments, the present invention provides a remote control system.

Since it uses a serial signal in which a device designation bit is added to the conventional operation mode designation bit, multiple devices can be operated independently by corresponding commanders. Therefore, the intended purpose can be fully achieved.

[Brief explanation of drawings]

FIG. 1 AE and FIG. 1 B are block diagrams showing an embodiment of the remote control system according to the present invention, and FIG. 1 A shows the configuration of the commander side, and FIG.
Figure 2 is a waveform diagram showing an example of the serial signal used in the above embodiment. Figure 3 shows the commander when the VTR designation bits are 2 bits. It is a block diagram showing the correspondence between VT1% and VT1%. 10...Commander 20...VTR.

Claims (1)

[Claims] a transmitter comprising an operation mode specifying means for forming operation mode specifying data and a receiving section specifying means for forming receiving section specifying data, and transmitting a control signal consisting of the operation mode specifying data and the receiving section specifying data; It has a transmitter designating means for forming designation data, and responds to the operation mode designation data only when the transmitter designation data and the receiver designation data obtained by transmitting the control signal from the transmitter match. A remote control system consisting of a receiving section that performs controlled operations.