JPH07212860A - Remote control system - Google Patents

Abstract

PURPOSE:To easily perform a preset by completing the setup of a remote control transmitter only if the prescribed key of the remote control transmitter is operated. CONSTITUTION:When a tenkey is operated and a desired area number is inputted when a transmission mode is shifted to a preset mode by operating the key matrix 18 of a remote control transmitter 12, the time information on a clock 22, the position information on the pertinent area written in a memory 20, frequency division information, guide channels and existing channels are transmitted from a transmission circuit 24. In a remote control receiver 14, a clock 36 is set based on the time information, the correspondence table of the position information and the frequency division information is written in a memory 30 and the correspondence table of the guide channel and the existing channel is written in an EEPROM 32. Based on the correspondence table of the memory 30, prescribed broadcasting is received by a selection station circuit 34 and the reservation of a G code becomes possible based on the correspondence table of the EEPROM 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control system, and more particularly to a remote control system used for operating a television receiver or a video tape recorder.

[0002]

2. Description of the Related Art When a television or a video television recorder is purchased, it is usually necessary to preset the time and the channel first. Conventionally, the time information of the clock built into the remote control system is sent to the main unit to set the time, and the remote control system sends the tuning channel information for each tuning channel to preset the tuning channel. In order to set the guide channel for G code reservation, the guide channel information is transmitted from the remote controller so as to correspond to each selected channel.

[0003]

However, such a conventional remote control system has a problem in that presetting is time-consuming. Therefore, a main object of the present invention is to provide a remote control system that can be easily preset.

[0004]

The present invention provides a remote control system including a remote control transmitter for transmitting a predetermined signal in response to a key input and a remote control receiver for receiving a signal transmitted from the remote control transmitter. The transmitter includes a first clock that operates according to the current time, a first memory in which channel selection channel information and guide channel information corresponding to the channel selection channel information are written so as to correspond to a broadcast reception area, and The remote control receiver includes a transmitting means for transmitting time information and channel selection channel information and guide channel information of a predetermined area written in the memory in response to a key input, and the remote control receiver includes a second clock for receiving the time information, reception. Second memory for writing channel selection channel information, and third memory for writing reception guide channel information corresponding to reception channel selection channel information Characterized in that it comprises a remote control system.

[0005]

By pressing, for example, a preset key on the remote control transmitter, the signal transmission mode is changed to the preset mode. At this time, for example, when a desired area number is input by operating the ten-key pad, time information and channel selection channel information of the area written in the memory and guide channel information corresponding to the channel selection channel information are transmitted.

The remote control receiver writes the received tuning channel information in the second memory, and also writes the received tuning channel information and the guide channel information in the third memory so that they correspond to each other. Also, the received time information is set in the clock.

[0007]

According to the present invention, the time is set in the remote control receiver and the channel selection information and the guide channel information are stored in memory by simply operating a predetermined key of the remote control transmitter. Can be preset. The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, a remote control system 10 of this embodiment includes a remote control transmitter 12 and a remote control receiver 14. The remote control transmitter 12 includes a microcomputer 16 having a key matrix 18, a memory 20, a clock 22.
And the transmission circuit 24 is connected. In the memory 20, as shown in Table 1, the area information area in which the address of the preset information in each area is written, and the position information (2 bits) corresponding to each broadcasting station, the frequency division information (3 bits), the guide channel (2 bits) and a preset information area in which existing channels (2 bits) are coded and written. It should be noted that the position information and the existing channels in the preset information area have the same contents. For example, in the case of NHK broadcasting in the Kanto region, both channels are two channels. The frequency division information is information used for controlling the frequency synthesizer system tuning circuit 34 described later, and the guide channel is a channel used in the VCR plus reservation system. Microcomputer 1
Reference numeral 6 reads time information from the clock 22 in response to an input signal from the key matrix 18 and also reads predetermined data from the memory 20, and transmits these information to the transmission circuit 24.
Output from.

[0009]

[Table 1]

The remote control receiver 14 includes a microcomputer 26, in which a receiving circuit 28, a memory 30, and an EEPROM 3 are provided.
2. A frequency synthesizer type tuning circuit 34 and a clock 36 are connected. Then, the microcomputer 26 receives the information transmitted from the remote control transmitter 12 via the receiving circuit 28, sets the time information in the clock 36, writes the position information and the frequency division information in the memory 30 so as to correspond to each other, Then, the guide channel and the existing channel are written in the EEPROM 32 so as to correspond to each other.

Next, referring to FIG. 2, the remote control receiver 1
The processing operation of the microcomputer 16 when presetting 4 will be described. First, when the area number designated for each area is input from the key matrix 18 in step S1, a time setting start code is transmitted in step S3, and subsequently, the time information read from the clock 22 is transmitted in step S5. . Then, in step S7, a time setting end code is transmitted, and then in step S9, channel selection channel and guide channel setting start codes are transmitted. Then, in step S11, the memory 2
The position information, frequency division information, guide channel data, and existing channel data from 0 are read out. That is, based on the preset information address of the predetermined area written in the area information area of the memory 20, only one data written in the preset information area is read. Then, the read data is transmitted in step S13, and the read address is incremented in step S15. After that, if it is determined in step S17 that all the data has been transmitted, in step S19 the setting end code of the channel selection and guide channel is transmitted and the process ends, but if all the data has not been transmitted, the process returns to step S11.

Next, the processing operation of the microcomputer 26 when the transmission mode shifts to the preset mode will be described with reference to FIG. First, when the time setting start code is received in step S1, the time information is decoded in step S3, and the decoded time is set in the clock 36 in step S5. Next, step S7
In step S9, when the time setting end code is received, and in step S9, the channel start channel and guide channel setting start code are received, the position information, frequency division information, guide channel and existing channel input in step S11 are decoded, These are written in the memory 30 and the EEPROM 32 in S13. That is, the first 2 bits and the next 3 bits of the input data are respectively written as position information and frequency division information in the memory 30 so as to correspond to each other, and the next 2 bits and the next 2 bits are further written. As guide channel and existent channel,
It writes in EEPROM32 so that each may correspond. After that, if the channel selection and guide channel setting end code is not received in step S15, step S15
Returning to step 11, the process ends if this end code is received.

In operation, when the key matrix 18 of the remote control transmitter 12 is operated to shift to the preset mode and the area number is input, the microcomputer 16
Reads the time information from the clock 22 and
Predetermined data is read from 0, and these are transmitted by the transmission circuit 24.
To the code as shown in FIG. When the receiving circuit 28 of the remote control receiver 14 receives this code,
The microcomputer 26 sets the clock 36 based on the time information, writes the position information and the frequency division information in the memory 30, and writes the guide channel and the existing channel in the EEPROM 32. This allows the memory 30
At, a correspondence table of position information and frequency division information is created, and based on this, the channel selection circuit 34 receives a predetermined broadcast. Further, the correspondence table of the guide channel and the existing channel is created in the EEPROM 32, and the G code reservation can be made based on this.

According to this embodiment, the remote control transmitter 12
The time is set in the clock of the remote control receiver 14 and the correspondence table of position information and frequency division information and the correspondence table of guide channels and existing channels are created by simply operating a predetermined key of Can be preset to. In this embodiment, the position information and the frequency division information corresponding thereto are written in the memory 30, but only the frequency division information is stored by associating the position information with the addresses of the memory 30 in a one-to-one correspondence. Of course, you may choose to do so. Further, although this embodiment has been described using the frequency synthesizer type tuning circuit, the present invention is realized by replacing the frequency division information with band information and tuning voltage information so that the present invention can be performed by a remote control reception using a voltage synthesizer type tuning circuit. Of course, it can be applied to machines. Furthermore, the remote control transmitter of this embodiment does not necessarily need to be applied to the remote control attached to the main body device, and the remote control transmitter is installed in a store or the like and set up on the spot when the main body device is sold. Of course, you can also do it.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing a part of the operation of the embodiment in FIG.

FIG. 3 is a flowchart showing a part of the operation of FIG. 1 embodiment.

FIG. 4 is an illustrative view showing a part of the operation of the embodiment in FIG. 1;

[Explanation of symbols]

 10 ... remote control system 12 ... remote control transmitter 14 ... remote control receiver 16, 26 ... microcomputer 20, 30 ... memory 32 ... EEPROM

Claims (1)

[Claims] 1. A remote control system comprising a remote control transmitter for transmitting a predetermined signal in response to a key input and a remote control receiver for receiving a signal transmitted from the remote control transmitter, wherein the remote control transmitter is the current one. In response to a first clock that operates according to time, a first memory in which channel selection channel information and guide channel information corresponding to the channel selection channel information are written so as to correspond to a broadcast reception area, and a key input The remote control receiver includes a transmitting unit for transmitting time information and channel selection channel information and guide channel information of a predetermined area written in the memory, wherein the remote control receiver sets a second clock and reception channel selection for setting the time information. A second memory for writing the channel information and a third memory for writing the reception guide channel information so as to correspond to the reception tuning channel information. Characterized Mukoto, remote control system.