JPS6221291B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a remote control transmitting device that transmits a signal consisting of two or more digit symbols.

In conventional remote control transmission devices for television receivers, when selecting a channel by directly inputting a channel number, such as with a frequency synthesizer type tuner, if the channel number is 2 digits or more, the channel number is 1 digit or more. This was inconvenient as it required two operations, one for the number and the 10-digit number, to send.

Also, even if the channel number to select is a single digit, such as the second channel, you must first press "0" to send, then press "2" to send. This was an inconvenience for those who mainly watched broadcasts using single-digit channel numbers, and had to manually enter ``0'' each time they selected a channel.

Therefore, an object of the present invention is to solve the problem of two or more operations in a remote control transmitter and to provide a remote control transmitter with good operability that can transmit signals of two or more digits with only one operation. It is something.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to drawings showing embodiments.

First, FIG. 1 shows an example of its basic configuration, where 1 is an address designation key, 2 is an address counter, 3 is an address decoder, 4 is an address display, 5 is a gated oscillator, 6 is a readout control circuit, 7 is a channel number command circuit, 8 is a memory,
9 is a parallel-serial code conversion circuit, 10 is a transducer for transmission, 11 is a memory switch, 12 is a battery, 13 is a display time limit circuit, 1
4 shows the entire remote control transmitter.

Now, in this remote control transmitter 14, when an address is first designated by the address designation key 1, the address counter 2 is driven and the input address information is held as a binary signal. The binary signal held by the address counter 2 is converted into a decimal signal by the address decoder 3, and the memory 8
Specify one address.

On the other hand, the digital switch 7a for the 10th digit and the digital switch 7b for the 1st digit of the channel number command circuit 7 input the channel number to be stored at that address, and the binary signal of each input digit number is input. are respectively input to the memory 8a for the 10th digit and the memory 8b for the 1s digit of the memory 8. When the memory switch 11 is closed, the channel number signals are stored as binary signals at the previously designated addresses. This operation is repeated as many times as necessary while changing the address, and the necessary channel number selection information is written and stored in the memory 8.

Next, when selecting a channel, any key of the address designation key 1 is operated. Then, the two-digit channel number signal written in the specified address of the memory 8 is read out, and the read control circuit 6
The parallel binary signal is converted into a serial two-digit code signal (long/short signal) and sent to the transducer 10, where infrared light, etc. for remote control is converted into a serial code signal (long/short signal). The signal is modulated and sent out.

In this way, signals for two digits are automatically read out and sent out with just one operation of the address designation key 1.

The display time limit circuit 13 is a circuit for automatically erasing the address display when there is no next input even after a certain period of time (for example, 30 seconds) has elapsed since there was no key input. This prevents wear and tear.

In addition, these signal processing units are configured with low power consumption IC elements such as CMOS or IIL, and the memory 8
Similarly, it may be configured using elements with low power consumption. In addition, if the memory 8 is configured with a non-volatile memory such as MNOS memory, the battery 1
There is no need to rewrite when replacing 2.

Furthermore, instead of a digital switch, the channel number command circuit 7 has counters 15a and 15b for the 10's digit and the 1's digit, and the contents of the counters 15a and 15b for numerically displaying them, respectively, as shown in FIG. Decoder drivers 16a, 16b, numeric display elements 17a, 17b, and counter 15
It is also possible to input the signal electronically using an oscillator 18 and a switch 19 that change the outputs of the outputs a and 15b.

FIG. 3 shows a top view of a remote control transmitter equipped with the above circuit. Address specification key 1a
11, digital switches 7a and 7b for channel number commands, a memory switch 11, and lamps 4a to 4l for address display.

Next, FIG. 4 shows a first embodiment of the present invention.

Here, 20 is an input key, 21 is a write channel number processing circuit that processes a two-digit channel number to be written to the memory, 22 is an input processing circuit, and 23
is the write/read mode switch, 2
4 is an address latch and decoder; 25 is a channel number latch and decoder; 26 is a memory for storing a two-digit channel number at each address;
27 is a read control circuit, 28 is a parallel-serial converter circuit, 29 is a transducer, 30 is a memory switch, 31 is a numeric display element, 32 is a decoder driver, 33 is a battery, and 34 is the entire remote control transmitter.

The method of writing the channel number into the memory in this embodiment is slightly different from the first example. First, the write/read mode switch 23 is set to write mode, and then the address key "A" is pressed by the input key 20. operated, then "0" ~
An address number is input using one of the keys "9". Subsequently, after the channel key "CH" is pressed, the two-digit channel number to be memorized is input by operating the input key 20 twice.
Next, memory switch 30 is pressed and that channel number is written. Thereafter, a two-digit channel number is written and stored in each address of the memory 26 using this procedure. Note that the signal input using the input key 20 is sorted into an address signal and a channel number signal by the input processing circuit 22 depending on whether "A" or "CH" was operated before, and is sent to the address latch and decoder. 24, a channel number latch and a decoder 25, respectively, and become an address signal and a channel number memory input for the memory 26, and the memory switch 30
is written to that address in memory 26 by closing.

This device also has means for automatically storing channel numbers, and detects the presence of a broadcast input into the writing channel number processing circuit 21 from a television receiver having an auto-search type synthesizer tuner. The received channel number signal is similarly distributed into an address signal and a channel number signal via the input processing circuit 22, and the write channel number sent from the television receiver is automatically written into the memory 26. This channel number signal automatically sweeps the channels selected on the television receiver and sequentially transfers the signal indicating the channel number on which the broadcast signal was received, and when receiving the next channel, the address is changed by one step. It also includes data that instructs you to proceed only.

The channel number written into the memory 26 by operating the input key 20 or by inputting a signal to the automatic writing channel number processing circuit 21 is converted into a signal by the decoder driver 32 and displayed on the display element 31.

Write/read mode switch 23
is switched to read mode, input key 2
0 is used exclusively for address designation, and the two-digit channel number stored in the memory 26 is read out in response to the address entered with one key operation.
The signal is modulated by the transducer 35 via the parallel-serial conversion circuit 28 and sent out as a serial signal such as infrared light. The readout control circuit 27 converts the parallel-serial conversion circuit 28 according to the input key 20.
This is for driving the gate of

FIG. 5 is a top view of this remote control transmitter 34, and the upper display of the display element 31 is an address number, and the lower display is a channel number. Further, a mode changeover switch 23, a memory switch 30, and an input key 20 are provided.

Furthermore, a second embodiment is shown in FIG. This is almost the same as the embodiment shown in FIG. 4 above, but the input keys 20 are arranged in one row, and a display in which the channel numbers written in the memory 26 are arranged in correspondence with the addresses. It is displayed on element 31. That is, it is clearly displayed which channel number is stored for which address. The display element 31 may be a liquid crystal or the like having low power consumption, or a timer circuit may be provided as shown in the first embodiment to erase the display after a certain period of time has elapsed.

As described above, in the present invention, the remote control transmitter has two
By memorizing channel numbers with more than digits, the hassle of having to input two operations like the conventional channel selection operation is eliminated, and it is easy to use, allowing you to immediately specify channel numbers with more than 2 digits in one operation. The device is what you get.

Moreover, since the memory that stores the channel number stores any channel number at any address, even if the number of addresses is limited by storing only valid channel numbers where broadcasts exist. Memory can be used efficiently, and the channel numbers can be arranged freely, so they can be arranged in order starting from the first address depending on the frequency of use.
A device that is easy to use and has good operability can be realized. In addition, by inputting the channel number to be stored in the memory using a signal indicating the broadcast signal receiving channel obtained from an automatic search type television receiver, the channel number can be automatically stored in the memory. . Furthermore, by displaying the memory address and the channel number stored in each address in correspondence, it has the advantage that it becomes clear which channel number is stored for which address. .

[Brief explanation of the drawing]

1 and 2 are block diagrams of a remote control transmitting device in one embodiment of the present invention, FIG. 3 is a top view of the same device, and FIG. 4 is a remote control transmitting device in another embodiment of the present invention. FIG. 5 is a top view of the same device, and FIG. 6 is a block diagram of a remote control transmitting device in yet another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Address designation key, 4... Address display, 7... Channel number designation circuit, 8... Memory, 10... Transducer, 20... Input key, 21... Write channel number processing circuit, 26
...Memory, 29...Transducer.

Claims (1)

[Claims] 1. A memory that stores arbitrary channel numbers of 2 or more digits in arbitrary addresses of multiple addresses, an address specification key that specifies the address of this memory with one operation when selecting a channel by remote control, and a transducer that sends out a remote control signal indicating the channel number of two or more digits according to the channel signal read from the address, and the channel number to be stored in the memory is obtained from an automatic search type television receiver. A remote control characterized in that a signal indicating a broadcast signal reception channel is inputted, and display means is provided for displaying an address in the memory and a channel number stored in each address in correspondence. Transmitting device.