JPH1155079A - Device and method for presetting channel and recording medium recording channel preset program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify channel preset operation for a user of equipment having a tuner. SOLUTION: This device is composed of a tuner 2, a digital data extracting part 3 for extracting digital data to be sent while being superimposed on broadcasting or simultaneously, a storage part 5, a manipulation part 6 and a control part 4. The control part 4 receives a channel preset request from the manipulation part 6, detects the presence/absence of broadcasting, and recognizes the identification number of a broadcasting station sent from the broadcasting station. The control part 4 further specifies a reception zone or utilization style by collating the information of a reception zone, a broadcasting station and a channel previously stored in the storage part 5, and performs channel setting corresponding to the reception zone or utilization style according to the channel preset information preserved in the storage part 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a channel preset device for simplifying a channel preset in a device having a built-in tuner, such as a television, a video, a television built-in personal computer, and a radio.

[0002]

2. Description of the Related Art Conventionally, channel presetting has been performed by the following method.

[0003] A first method is a method of selecting a reception area or inputting an area code or the like of a telephone number to specify a reception area and preset a channel.

A second method is to detect the presence / absence of broadcasting in order from the smallest channel to the largest channel, and allocate all broadcasts.

[0005]

SUMMARY OF THE INVENTION However, the above-mentioned conventional first method
This method is very complicated because it is necessary to select a receiving area and input a telephone number and the like one by one. Also, the channel preset information prepared in advance is often limited to a specific area such as an urban area. May not fit. Further, when a channel that cannot be received is set, or when there is a channel that can be received other than the preset information, a separate setting is required.

In the second conventional method, there is a variation in preset channels depending on a reception state, and an incorrect preset may be performed because information such as a reception area is not taken into consideration.

An object of the present invention is to eliminate such complexity of the channel preset and eliminate the mismatch between the preset information and the actually receivable channel.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention detects the presence / absence of a broadcast, stores the broadcast station identification information, etc., which the broadcast station superimposes on the broadcast and sends it to the apparatus in advance. The present invention provides an apparatus that realizes a channel preset that matches an actual broadcast with a simple operation by performing channel setting by comparing preset information that is present.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention comprises a tuner, a digital data extracting unit for extracting digital data superimposed on or transmitted simultaneously with a broadcast, and a storage unit for storing channel preset information. An operation unit for requesting a channel preset, and a control unit for setting a channel. The control unit receives a channel preset request from the operation unit, and receives data from the digital data extraction unit and channel preset information in the storage unit. This is a channel preset device that performs channel setting according to a reception area or a reception mode based on the reception area, and has an effect that a channel can be set by a simple operation.

[0010] The invention described in claim 2 is the same as the claim 1.
Here, the channel preset information stored in the storage unit includes a reception area, a broadcast station identification number, a reception channel number,
This is a channel preset device having an assignment button, and has an effect that a channel can be set according to a broadcast that can be actually received in a reception area by a simple operation.

[0011] The invention according to claim 3 is based on claim 1.
, The digital data extracting section is a channel preset device characterized by extracting presence / absence of a broadcast for each channel and a broadcast station identification number, and automatically sets a channel set in the broadcast based on the broadcast station identification number. Has the effect of being able to.

The invention described in claim 4 is the first invention.
In the above, the control unit is a channel preset device characterized by deleting or adding a channel to be assigned when the channel that can be actually received is different from the channel preset information in the storage unit. It has the effect of eliminating mismatching.

The invention described in claim 5 is the first invention.
In the above, the control unit is a channel preset device characterized in that when the identification number of the broadcast station cannot be obtained, the broadcast station is identified by the program content data extracted from the digital data extraction unit. Even if the program is not transmitted, the channel preset can be performed from the program contents.

[0014] The invention according to claim 6 is the first invention.
Wherein the control unit automatically performs the channel preset immediately after a system such as a personal computer in which the channel preset device is incorporated when the channel preset is not set or when the system is in an idle state. This has the effect that the channel preset is automatically performed immediately after the built-in system is activated or in the idle state.

The invention described in claim 7 is the first invention.
Wherein the control unit starts the channel preset operation when it detects that the content of the preset is different from the actual broadcast even when the channel preset is set, And automatically updates the channel setting when detecting that the actual broadcast is different.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. Embodiment 1 FIG. 1 is a system block diagram of a channel preset device according to one embodiment of the present invention. 1 is an antenna, 2 is a tuner, 3 is a digital data extraction unit, 4 is a control unit, 5 is a storage unit, and 6 is an operation unit.

FIG. 2 is a flow chart showing the procedure for processing the channel preset. Hereinafter, the flowchart of FIG. 2 will be described step by step.

In ST1, the control unit 4 obtains a channel preset request from the operation unit 6 and starts operation. S
At T2, the channel setting is initialized. In ST4, the control unit 4 sequentially sets channels for the tuner,
In step ST5, the presence / absence of broadcasting is detected by the digital data extracting unit for each channel. If a broadcast is detected, digital data superimposed on or simultaneously transmitted with the broadcast is extracted in ST6, and a number for identifying a broadcast station included in the digital data is extracted.

The presence / absence of a broadcasting station and the number for identifying the broadcasting station are extracted for each channel, and the reception area and the usage pattern are compared with the reception area and the information of the broadcasting station and the channel stored in advance in the storage unit. In ST3, it is determined whether or not has been specified.
In ST7, channel setting is performed according to the reception area or the use mode according to the channel preset information stored in the storage unit.

If the channel preset information does not match the presence or absence of an actual broadcast, a channel to be allocated is added or deleted in ST8.

In the above description, an example in which the tuner is constituted by a TV tuner has been described. However, other tuners can be similarly implemented as long as a broadcast station can be specified by digital data.

As an alternative to the request from the operation unit, the channel preset can be performed without the user of the system being conscious by using the timing of the activation or idle state of the system in which this device is incorporated. It is possible.

Further, the present invention is realized by a program, and can be implemented by another independent computer system by recording and transferring the program on a recording medium such as a floppy disk.

[0024]

Next, a specific example of the present invention will be described with reference to FIGS.

(Embodiment 1) FIG. 3 is a table showing an example of extracted data of a digital data extraction unit obtained in one embodiment of the present invention, and FIG. 4 shows channel preset information stored in a storage unit. It is a table.

In the data of FIG. 3, the channel is sequentially changed from 1ch to 62ch with respect to the tuner 2 of FIG.
The presence / absence of a broadcast is detected, and if there is a broadcast, the transmission identification number of the text broadcast is obtained.

The result obtained in FIG. 3 is compared with channel preset information stored in the storage unit in FIG.
When the data in FIG. 3 is compared with the data in the reception area “Osaka”, all combinations of the broadcast station identification number and the reception channel number match, while the data in the reception areas “Kyoto” and “Kobe” are different. Comparisons may not match. Therefore, the reception area is determined to be Osaka, and channel setting is performed according to the “assignment button number” of the preset information “Osaka”.

In the above embodiment, the broadcast station is specified by using the broadcast station identification number of the teletext broadcast. However, the broadcast program may be transmitted as a text broadcast table of contents or data broadcast. Specifying the broadcast station using the stored data can be similarly performed.

Further, in the above embodiment, 1ch to 62c
h is changed in order, but it is also possible to reduce the time for specifying the reception area by determining the order of the channels to be checked by using the channel preset information in the storage unit.

[0030]

As described above, according to the present invention, there is obtained an advantageous effect that the presetting of the channel can be automatically performed without the user of the apparatus consciously inputting the receiving area and the receiving form. . Further, according to the present invention, it is possible to specify the reception area or the reception mode of the apparatus used by the presence or absence of the broadcast and the digital information included in the broadcast. Further, according to the present invention, there is no need to consciously perform channel presetting by utilizing timings such as system startup and an idle state.

[Brief description of the drawings]

FIG. 1 is a block diagram of a channel preset device according to an embodiment of the present invention;

FIG. 2 is a flowchart showing a processing procedure of channel preset in the channel preset device.

FIG. 3 is a table showing an example of extracted data of a digital data extracting unit obtained in one embodiment of the present invention.

FIG. 4 is a table showing channel preset information stored in a storage unit in advance in the embodiment.

[Explanation of symbols]

 Reference Signs List 1 antenna input 2 tuner 3 digital data extraction unit 4 control unit 5 storage unit 6 operation unit

Claims (9)

[Claims] 1. A tuner, a digital data extracting section for extracting digital data superimposed on or transmitted simultaneously with a broadcast, a storage section for storing channel preset information, an operation section for requesting a channel preset, and channel setting. The control unit receives a channel preset request from the operation unit, and performs channel setting according to a reception area or a reception mode based on data from the digital data extraction unit and channel preset information in the storage unit. A channel presetting device. 2. The channel preset information stored in the storage unit includes a reception area, a broadcast station identification number, a reception channel number, and an assignment button.
The described channel preset device. 3. The channel presetting device according to claim 1, wherein the digital data extracting unit extracts presence / absence of broadcasting for each channel and a broadcasting station identification number. 4. The channel preset device according to claim 1, wherein the control unit deletes or adds a channel to be allocated when the channel preset information in the storage unit and the channel that can be actually received are different. 5. The channel preset device according to claim 1, wherein the control unit identifies the broadcast station by the program content data extracted from the digital data extraction unit when the identification number of the broadcast station cannot be obtained. 6. The control section automatically performs channel presetting immediately after a system such as a personal computer incorporating a channel presetting device is started or in an idle state when the channel presetting is not set. The channel preset device according to claim 1. 7. The channel according to claim 1, wherein the control unit starts the channel preset operation when it detects that the contents of the preset and the actual broadcast are different even when the channel preset is set. Preset device. 8. A method for presetting a channel, comprising: a digital data extracting step of extracting digital data to be superimposed on or transmitted simultaneously with a broadcast; and a step of extracting data from the digital data extracting step and channel preset information stored in advance. A channel setting method for setting a channel according to a reception area or a reception mode based on the reception area. 9. A recording medium on which a program for presetting a channel is recorded, wherein a digital data extracting step for extracting digital data to be superimposed on or transmitted simultaneously with a broadcast, and data from the digital data extracting step are stored in advance. A channel setting program for setting a channel according to a reception area or a reception mode based on the obtained channel preset information.