JPH03109810A - Automatic channel search/storage device - Google Patents

Abstract

PURPOSE:To confirm information of channel search and the number of stored channels momentarily by displaying the number of channel selection numbers and the number channels of a designated level or over stored in a storage section onto a display device through a character generating section. CONSTITUTION:The automatic channel search mode is selected in response to the operation of a channel search switch 12, and a channel of a receiver 15 is selected over the entire reception frequency band through a channel selection section 14. A control data when a receiver signal over a designated level is detected by a level detection section 21 is sequentially stored in a storage section 22, simultaneously the number of channel selection numbers and the number of channels stored in the storage section 22 are displayed on a display device 18 through a character generating section 23. Thus, the channel number and a remaining stored channel number are identified at the time of searching the channel and the information of channel search and the number of stored channels are momentarily confirmed.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) This invention is an automatic device that is used in, for example, a television receiver, and automatically searches for broadcast waves and memorizes the selected channel. This invention relates to a station search storage device.

(Prior Art) Conventionally, television receivers have been provided with automatic station search and storage devices because the channels that can be received vary depending on the region. This device searches for stations by scanning the television broadcasting frequency band in the receiving section according to the operation of the search switch, and stores the sequentially selected channels in the memory section in descending order of frequency or in descending order of frequency. The channel is memorized, and the memorized channel can be selectively output by operating the channel selection switch.

However, in the conventional automatic station search storage device, the end of the station search is only notified by, for example, lighting of a pilot lamp, and the channel number of the searched station cannot be known. Further, although the number of channels that can be stored in the storage section is limited, since the number of stored stations is not displayed, it is not possible to identify the remaining number of channels that can be stored. For this reason, the searched channel could only be confirmed once it had been memorized.

(Problem to be Solved by the Invention) As described above, in the conventional automatic station search storage device, it is not possible to identify the searched channel number and the remaining number of channels that can be stored. could only be confirmed once it had been memorized.

This invention was made in order to solve the above problem, and it is possible to identify the searched channel number and the remaining number of memorizable channels at the time of searching. The purpose of the present invention is to provide an automatic station search storage device that can instantly confirm the location of the station.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, an automatic station search storage device according to the present invention performs sweep control of a receiving device capable of receiving a plurality of channel signals to select a channel. a level detection unit that detects whether a channel selection output of the receiving device is equal to or higher than a specified level; and a mode in which the channel selection is performed for the entire receiving frequency band of the receiving device. a storage unit for storing control data of a channel searched in an automatic search mode set by the search switch, and a character for displaying a specified character on a display of the receiving device. Depending on the operation of the generation part and the station search switch, automatic station search mode is activated.
Channel selection of the receiving device is performed over the entire receiving frequency band through the tuning section, control data when a received signal of a specified level or higher is detected by the level detecting section is sequentially stored in a storage section, and at the same time, the character is generated. and a control section for displaying the number of selected channels and the number of channels stored in the storage section on the display through the section.

(Function) In the automatic station search storage device configured as described above, when storing control data when searching for a channel number of a specified level or higher in the storage unit, the number of selected channels and the number of stored channels are displayed on the display. is displayed.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows the configuration of a television receiver equipped with an automatic station search storage device according to the present invention.
controls the entire device. This control section 11 is composed of a microcomputer,
An automatic station search mode is set by turning on the station search switch 12, and an automatic station selection mode is set by turning on the station selection switch 12. The tuning section 14 receives a tuning command from the control section 11 and sweeps the local oscillation frequency of the receiving section 15. The receiving section 15 selects the antenna 1 under the control of the channel selection circuit 14.
6 television frequency band received signals to select a specific channel, and output the television signal and audio signal of the selected channel. The video processing circuit 17 processes the television signal output from the receiving section 15 and causes the display device 18 to display the signal on a screen. The audio processing circuit 19 processes the audio signal output from the receiving section 15 and causes the speaker 20 to reproduce the sound.

The level detection circuit 21 receives the channel selection signal from the receiving section 15, detects whether the level is above a certain value, and outputs a detection signal to the control section 11 when the level is above the certain value.

The storage unit 22 stores the tuning control value of the control unit 11 when the detection signal is output from the level detection circuit 21 in the automatic tuning mode, and stores the designated tuning control value in the automatic tuning mode. It is read out and output to the control section 11.

The character generating circuit 23 receives a command from the control unit 11 and displays a designated character at a designated position on the display device 18.

The operation of the above configuration will be described below with reference to FIGS. 2 and 3. FIG. 2 is a flowchart showing the flow of operations during station searching, and FIG. 3 shows an example of a screen display during station searching.

First, by turning on the station search switch 12, the control unit 11
enters the automatic station search mode (step a), and after initializing the channel number N and channel memory number M (step b).
), the receiving section 15 is swept scanned through the channel selection circuit 14 to locate the Nth channel (step C), and the number N is displayed in the area A at the upper right corner of the display device 18 through the character generation circuit 23 (step C). d). At this time, the detection output of the level detection circuit 21 is checked (step e) to determine whether it is above the specified level or not (step f), and whether it is below the specified level (N
o), add 1 to N (step g) and return to step C. If the specified level is higher than the specified level (YES), after storing the channel selection control value of the Nth channel in the storage unit 22 (step h), 1 is added to the number M of stored channels.
is added (step 1), the stored channel number value N is displayed in area B at the lower left corner of the display device 18 (step j), and the number of stored channels M to which 1 is added is displayed in area C at the lower right corner. (Step k). Finally, it is determined whether or not the search has been performed for all frequency bands, that is, whether the search has ended or not (Step 1), and if the search has not ended (
No) Return to step g and repeat the above operation, and if finished (YES), end the station search storage operation and return to the normal television operating state (step m).

Next, by operating the channel selection switch J3, the control section 11 enters the automatic channel selection mode. Here, if it is desired to select the Nth channel, for example, the channel selection switch 13 is turned on by the number of channels. The control section 11 reads this, reads out the channel selection control value for that channel from the storage section 22, and supplies it to the channel selection circuit 14 to cause the reception section 5 to receive the corresponding channel. At the same time, the number N is displayed in area A at the upper right corner of the display device 18 through the character generation circuit 23. Similarly, if you want to select the N+nth channel, you only need to turn on the channel selection switch 13 n more times, and the display device 1
The number N+n is displayed in area A at the upper right corner of 8.

Therefore, during station searching operation, a television receiver using the automatic station searching and storage device configured as described above displays on the screen the channel number to be searched, the channel number to be stored, and the number of stored channels. During operation, the selected channel number is displayed on the screen, so you can instantly check each channel.

Note that this invention is not limited to the above embodiments,
Of course, the operating procedure may be changed or added.

[Effects of the Invention] As described above, according to the present invention, it is possible to identify the searched channel number and the remaining number of channels that can be stored at the time of searching, and thereby the information on the searched channel and the number of stored channels can be identified. It is possible to provide an automatic station search storage device that allows instant confirmation.

[Brief explanation of drawings]

FIG. 1 is a block circuit diagram showing the configuration when used in a television receiver as an embodiment of the automatic station search storage device according to the present invention, and FIG. 2 is the flow of operation in the automatic station search mode of the same embodiment. FIG. 3 is a flowchart showing a display example of the automatic station search mode of the same embodiment. 11... Control unit, 12... Station search switch, ■3...
- Tuning switch, 14... Tuning circuit, 15... Receiving section, 16... Antenna, 17... Video processing circuit, 1
8...Display device, 19...Audio processing circuit, 20...
- Speaker, 21...Level detection circuit, 22...Storage section, 23...Character generation circuit.

Claims (1)

[Scope of Claims] A tuning section that executes tuning by performing sweep control of a receiving device capable of receiving a plurality of channel signals, and a level that detects whether a channel tuning output of the receiving device is equal to or higher than a specified level. a detection unit; a search switch for setting the channel selection to a mode in which the channel selection is performed for the entire receiving frequency band of the receiving device; a storage unit for storing control data; a character generating unit for displaying a specified character on a display of the receiving device; and an automatic station searching mode in response to operation of the station searching switch; Channel selection is performed over the entire receiving frequency band, control data is sequentially stored in a storage section when a received signal of a specified level or higher is detected by the level detecting section, and at the same time, control data is selected on the display through the character generating section. An automatic station search storage device comprising: a control unit that displays the number of station channels and the number of channels stored in the storage unit.