JPS601916A - Remote control device - Google Patents

Abstract

PURPOSE:To facilitate operation by generating a random channel selection signal in the initial stage of depression of a random channel selecting operation button and generating a successive channel selection signal when this operation button is depressed over a certain time. CONSTITUTION:A transmitter is provided with 12 random channel selecting operation buttons BO1-BO12 to select the first- the twelfth channels. When one of operation buttons BO1-BO12 on a keyboard 6 is depressed, the random channel selection signal which selects a channel corresponding to this depressed operation button is generated as a remote control signal SRM in the initial stage of this depression, and an up signal (the successive channel selection signal) which selects channel successively is generated as the remote control signal SRM when the operation button is depressed over a certain time, for example, 3 seconds. When this operation button BO1 is depressed for a longer time, the up signal is generated as the remote control signal SRM at intervals of a prescribed time.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a remote control device used to remotely control channel selection in a television receiver.

BACKGROUND ART AND PROBLEMS Recently, remote control devices for remotely controlling television receivers have many functions such as channel selection, power on/off, and volume adjustment. For this reason, the number of operation buttons on the panel surface of the transmitting device is large, the shape of the operation buttons is small, and the gaps between them are narrow, resulting in poor usability.

Furthermore, the greater the number of operation buttons, the greater the cost of parts and processing time.

As for the tuning function, in the case of a random tuning function, that is, a function to select a desired channel by specifying it, and a sequential tuning function, that is, a function to tune up or down channels in sequence, conventionally, the transmission These two types of channel selection operation buttons are arranged on the panel surface of the device, which is the reason for the increase in the number of operation buttons described above.

On the other hand, in order to reduce the number of operation buttons on the panel of the transmitter,
Some models have either a random channel selection function or a sequential channel selection function, but in the former case, you have to press the operation button each time you search for a program, and in the latter case, you have to press the button each time you want to search for a program. It is not possible to directly select channels, and the usability deteriorates in both cases.

OBJECTS OF THE INVENTION In view of the above, the present invention is designed to reduce the number of operation buttons until it has a random channel selection function and a sequential channel selection function.

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is provided with a random tuning operation button on the transmitting side, and when the random tuning operation button is initially pressed, a random tuning signal is generated. After a certain period of time has elapsed in this state, the channel selection signals are sequentially generated.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a transmitting device. In the same figure, (
1) is CPU, (2) is ROM, (3) is RAM,
(4) is a data bus, and (5) is an address bus.

In addition, (6) is a key bead that constitutes a random channel selection operation button, for example, 12 random channel selection operation buttons B for selecting channels from the 1st channel to the 12th channel.
OI to B012 are provided. This key date (6
) is connected to the CPU (1) via an interface (7).

Further, (8) is a light emitting diode for converting the remote control signal SRM (hereinafter referred to as remote control signal SRM) into an optical signal. The remote control signal "RM" of C\IU (1) or 6 is supplied to the pace of the transistor QO through the output port (9), and the above-mentioned light emitting diode (
8) is driven by this transistor 01.

In the transmitting device shown in FIG.
6) When the operation buttons BOI to B012 are pressed, a random channel selection signal is generated as the remote control signal sRM to select the channel corresponding to the pressed operation button, and then state for a certain period of time, e.g. 3
After seconds have elapsed, an up signal (sequential channel selection signal) for sequentially increasing channels is generated as a remote control signal SRM. That is, this transmitting device operates according to the flowchart shown in FIG. 2 under the control of the CPU (1).

That is, first, it is determined whether or not the operation button BOI for selecting one channel is pressed. If it has not been pressed, then it is determined whether or not the operation button BO2 for selecting channel 2 has been pressed. When the operation button BOI is pressed, a random channel selection signal for selecting one channel is generated as the remote control signal sRM. Then, it is determined whether or not the operation button BOI has been pressed for a certain period of time or more, for example, three seconds or more. If it has not been pressed, then it is determined whether or not the operation button BO2 for selecting channel 2 has been pressed. When the operation button BOI is pressed after a certain period of time has elapsed, an up signal for raising the channel is generated as a remote control signal SRM. And this operation button BO
If I is pressed further, IJ control signal S
As RM, an up signal is sequentially generated at predetermined time intervals.

Then, when the operation button BOI is no longer pressed, it is determined whether or not the operation button BO2 for selecting the second channel has been pressed.

The above operation is 2nd channel → 3rd channel →...
・This process is repeated in the order of 12 channels → 1 channel →...

For example, when the operation button BO3 is pressed, a random channel selection signal for selecting three channels is initially generated as the remote control signal SRM. After this pressed state has elapsed for a certain period of time or more, until the pressed state is released, a hot signal is generated as a remote control signal SRM that sequentially increases the channels from channel 4 to channel 5, and so on.

Next, FIG. 3 shows a receiving device. In the figure, α1 indicates a receiving circuit, which includes a photodiode and a light emitting diode of the transmitting device described above.
The remote control signal SR is converted into an optical signal by r(8).
M is received. This received remote control signal SRM is supplied to the decoder 01 and converted into a signal according to the content of the remote control signal SRM.

In this example, the remote control signal 5RR (is the first to first
Thirteen kinds of signals are obtained from this decoder α3, including a random selection signal for selecting two channels and an up signal. The signal obtained by this decoder C1l is supplied to a cruise generator α4. Then, a reset pulse PRI! is sent from the pulse generator a4 to the channel selection counter aQ in response to a signal from the decoder (c). El
and up count pulse PuP are supplied, and channel selection is performed based on the remote control signal SRM.

Output terminal (15,) of the tuning counter α→.

(152),...l When the tuning signal is obtained at (1512), channel 1, channel 2, @:
, -12 channels are selected.

For example, when a random channel selection signal for selecting 3 channels is supplied as the remote control signal sRM, the reset cruise signal PRF,s is supplied and the channel selection counter α→ is reset, as shown in FIG. 4A. The channel (CHI) is selected, and after that, an up-current signal PUP is supplied at a very short period, for example, a period of several m5ec, as shown in FIG. (CH3) is selected.

After that, when the up signal is supplied as the remote control signal sRM, the up count/Yars Pup is supplied to the channel selection counter αυ at a relatively long period, for example, 0.7 cycles, as shown in FIG. Counter α → is sequentially 4 channels (CH4) → 5 channels (CH3) →...
It is assumed that the channel is selected.

According to this example, the random channel selection operation buttons BOI to BO1
Since 2 is also used as a sequential channel selection (up channel selection) operation button, the number of operation buttons can be reduced while maintaining the same perrandom channel selection function and sequential channel selection function as compared to the conventional one.

Therefore, the number of operation buttons on the panel surface of the transmitting device is reduced, improving usability. Additionally, parts costs and processing labor are reduced by the reduction in the number of operation buttons. Furthermore, since the number of operation buttons is reduced, the degree of freedom in design on the panel surface is improved.

In the above-described embodiment, the sequential channel selection is configured to sequentially increase channels, but it may also be configured to sequentially decrease channels. In this case, the down count pulse PDOWN is supplied to the 0 valley of the channel selection counter as shown by the broken line in FIG. It is also possible to configure the system so that sequential channel selection can be performed in both up and down directions. For example, consecutive random channel selection operation buttons rB03. BO4J to BO3→
The configuration may be such that when pressed in the direction of BO4, an up signal is generated as the remote control signal SRM, and when pressed in the order of BO4→BO3, a down signal is generated as the remote control signal SRM.

Effects of the Invention According to the present invention described above, since the random channel selection operation button also serves as the sequential channel selection operation button, the number of operation buttons can be reduced while still having the random channel selection function and the sequential channel selection function. This improves usability, reduces parts costs and processing time, and increases design freedom.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing a transmitting device according to an embodiment of the present invention, FIG. 2 is a flowchart for explaining the same, FIG. 3 is a configuration diagram showing a receiving device according to an embodiment, and FIG. , is a diagram for clarity. BOI-BOI2 are random channel selection operation buttons. To Hidemori Matsukuma 1),

Claims (1)

[Claims] On the receiving side, a random tuning signal and a sequential tuning signal are received and tuning is performed by each one, and a random tuning operation button is provided on the transmitting side, and initially when the random tuning operation button is pressed, random tuning is performed. A remote control device that generates a station signal and sequentially generates a station selection signal after a certain period of time has elapsed in a pressed state.