JPH04328998A - Remote control signal processing system - Google Patents

Abstract

PURPOSE:To contrive to compatible with the codes of each system by constituting the system so that the code of the remote control signal of composite merchandise that different kinds of systems are integrated can be used properly according to each system. CONSTITUTION:When the remote control signal is transmitted from the slave machine of the remote control device to a composite merchandise, the signal is received by a remote control receiving light part 1 and is led to a signal processing circuit 2. For the signal to led to the circuit 2, whether the system code is the system code of a TV receiver or the system code of VTR is discriminated. When the instruction code is exclusive to the TV receiver, a video signal processing part 4, etc., are controlled and the operations corresponding to the instruction code are executed. When the instruction code is common to the TV receiver and VTR, a system switch and control part 7, etc., are controlled and the operations corresponding to the instruction code are executed. When the instruction code is exclusive to VTR, a VTR control part 3 is controlled and the operations corresponding to the instruction code are performed.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control signal processing method for processing remote control signals for a composite product combining different types of systems.

0002

2. Description of the Related Art Recently, electric appliances that can be remotely controlled using infrared rays have become popular, and many electric appliances equipped with remote control devices are often placed within the control range of one remote control device. In order to cope with such a situation, a system code for distinguishing between products is generally inserted at a specific position of the remote control signal. When a product receives a remote control signal from a slave unit of a remote control device, the product's remote control signal receiving section determines the system code indicating the product type inserted in the received signal and recognizes the command sent to itself. Determine whether or not. In this way, malfunctions between different types of products are prevented.

However, for example, video tape recorders (hereinafter referred to as ``VTR'') and television receivers (hereinafter referred to as ``T
There are many composite products that have become popular, such as a VTR system code or a TV receiver system code. On the other hand, a single system code is used to decode remote control signals.

0004

[Problems to be Solved by the Invention] In the conventional device described above, for example, if the composite product is an integrated type of VTR and TV receiver, if the system code of the VTR is adopted, the system code of the TV receiver is You will no longer be able to operate the remote control unit with the
If the receiver's system code is adopted, a remote control unit with the VTR's system code will not be able to operate it. That is, it becomes impossible to achieve compatibility with the code of the remote control signal in conventional individual products.

[0005]

[Means for Solving the Problems] In order to solve the above problems, the present invention combines different types of systems that process remote control signals in which a predetermined system code predetermined for each different type of system is inserted. In a remote control signal processing method for a composite product, a system determination means reads a system code of the remote control signal and determines which system the system code corresponds to; instruction code discrimination means for determining whether the instruction code is unique to the determined system or common to other systems;
a dedicated instruction decode processing means for decoding a dedicated instruction code for each system; a common instruction decoding processing means for decoding a common instruction code common to each system;
If the instruction code discriminated by the instruction code discriminating means is a code specific to the system discriminated by the system discriminating means, the dedicated instruction decoding processing means corresponding to the system is selected and discriminated by the instruction code discriminating means. If the instruction code is a common instruction code common to each system, a selection means for selecting the common instruction decoding processing means is provided.

[0006]

[Operation] With the above configuration, when the composite product receives a remote control signal, it determines the system code of the remote control signal and determines whether the signal corresponds to any system in the composite product or the signal does not correspond to any system. to judge. If the signal does not correspond to any system, it will be treated as an error signal, and if the signal corresponds to any system in the complex product, the command code of the remote control signal above will be interpreted as a dedicated command specific to that system. code or a common instruction code common to each system. If it is a dedicated instruction code unique to a system, a dedicated instruction decode processing means corresponding to the system is driven, and if it is a common instruction code common to each system, a common instruction decode processing means common to each system is driven.

[0007]

[Embodiment] An embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a block diagram showing an operation control section of a composite product in which a TV receiver and a VTR are integrated, which is an embodiment of the present invention. In the figure, reference numeral 1 denotes a remote control light receiving section that receives remote control signals such as infrared rays transmitted from a slave device (not shown) of a remote control device, and the remote control light receiving section 1 also includes an amplifier. Reference numeral 2 denotes a signal processing circuit including a microprocessor, etc., which decodes a remote control signal received by the remote control light receiving section 1.

This signal processing circuit 2 includes a system code discriminating section that reads and discriminates a system code that specifies which system of a composite product is inserted in a remote control signal, and a system code discriminating section that reads and discriminates a system code that specifies which system of a composite product is inserted in a remote control signal, and a system code discriminating section that reads and discriminates a system code that specifies which system of a composite product is inserted in a remote control signal. Consists of an instruction code discriminator that determines whether the instruction code is a dedicated instruction code provided for a specific system or a common instruction code that is common to each system, and a decode processing section that decodes the instruction code discriminated by the instruction code discriminator. .

[0009] 3 is a function exclusively for VTR, PLAY, F.
This is a VTR control unit that controls F, REW, REC, PAUSE, STOP, etc. 4 and 5 are functions exclusive to TV receivers such as COLOR, CONTRAST, and BRIGH.
T, P-TONE, TINT adjustment, etc. and S-VOL, B
These are a video signal processing section and an audio signal control section that control ASS, TREBLE, BARANCE adjustment, etc., and 6, 7, and 8 are the power O which is common to the VTR and TV receiver.
These are a power supply control section, a system switching control section, and a tuner control section that perform tuner and band switching control such as N/OFF, TV/AV switching, tuning voltage VT, and band data.

When a remote control signal such as infrared rays is transmitted to a composite product from a child unit (not shown) of a remote control device, this remote control signal is received by a remote control light receiving section 1 and guided to a signal processing circuit 2. The above remote control signals include PLAY, FF,
VTR-specific instruction codes such as REW, REC, PAUSE, and STOP, and COLOR, CONTRAST, and BRI
GHT, P-TONE, TINT, S-VOL, BAS
TV for adjusting S, TREBLE, BALANCE, etc.
Receiver-specific command code and power ON/OFF, CH0
~9, CH UP/DOWN, MUTE, TV/AV
It contains instruction codes commonly used by both VTRs and TV receivers, and different system codes that specify the VTR and TV receiver are inserted into each signal for the VTR and TV receiver, respectively.

The remote control signal guided to the signal processing circuit 2 is processed according to the flowchart shown in FIG. First, a system code discriminator determines whether the system code contained in the remote control signal is a TV receiver system code or a VTR system code. If it is not any system code, it is determined as an error that it belongs to another device.

Next, if it is a system code of a TV receiver, the instruction code discriminator determines whether the instruction code is exclusive to the TV receiver or a common instruction code common to the TV receiver and VTR, and then the system code of the VTR is determined. If so, the instruction code determination section similarly determines whether the instruction code is a VTR-specific instruction code or a common instruction code common to a VTR and a TV receiver. In this way, it is determined whether the instruction code inserted in the remote control signal is a TV receiver-specific instruction code, a common instruction code common to the TV receiver and VTR, or a VTR-specific instruction code, and corresponding to each instruction code is determined. The decoding processing mechanism performs decoding processing and executes instructions.

That is, if the command code inserted in the remote control signal is exclusive to the TV receiver, the video signal processing section 4 or the audio signal control section is controlled to execute the operation corresponding to the command code. . If the instruction code is common to the TV receiver and VTR, it controls one of the power supply control section 6, system switching control section 7, tuner control section 8, etc., and executes the operation corresponding to the instruction code. . Further, if the instruction code is for VTR only, it controls the VTR control section 3 and executes the operation corresponding to the instruction code.

[0014]

[Effects of the Invention] Since the present invention has the above-described configuration, it is possible to use different remote control signal codes for each system in a composite product that integrates different types of systems. It is possible to achieve compatibility with the code of

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart of an embodiment of the present invention.

[Explanation of symbols]

2 Signal processing section

Claims (1)

[Claims] Claim 1. In a remote control signal processing method for a composite product combining different types of systems that process remote control signals in which a predetermined system code predetermined for each different type of system is inserted, A system determination means for reading the system code and determining which system the system code corresponds to, and whether the command code of the remote control signal is a command code specific to the system determined by the system determination means or another system. instruction code discriminating means for determining whether the instruction code is common to each system; dedicated instruction decoding processing means for decoding a dedicated instruction code for each system; and common instruction decoding processing for decoding a common instruction code common to each system. and if the instruction code discriminated by the instruction code discriminating means is a code specific to the system discriminated by the system discriminating means, the dedicated instruction decoding processing means corresponding to the system is selected, and the instruction code discriminating means selects the dedicated instruction decode processing means corresponding to the system; A remote control signal processing system comprising: selection means for selecting the common instruction decoding processing means if the determined instruction code is a common instruction code common to each system.