KR19990023149A - Frequency automatic setting device of broadcasting channel according to region change - Google Patents

Abstract

The present invention relates to an apparatus for automatically setting a broadcast channel frequency of a broadcast receiver, comprising: a region change detector for detecting a region movement of a broadcast receiver, a storage for storing a frequency of a broadcast channel according to a region, and a region change detection from the region change detector A control unit for outputting a control signal for setting a corresponding local frequency of the broadcast channel selected by referring to the broadcast channel frequency in the storage unit by a signal, and automatically tuning the frequency of the broadcast receiver to the control signal of the selected broadcast channel. It characterized in that it comprises a frequency setting unit for setting the local frequency. The apparatus for automatically setting a frequency of a broadcast channel according to the present invention automatically sets a frequency of a broadcast channel that changes according to a region change, and displays the broadcast channel name on the channel display unit instead of displaying the broadcast channel using the frequency of the broadcast channel. The advantage is that it can be represented directly as a string.

Description

Frequency automatic setting device of broadcasting channel according to region change

The present invention relates to an apparatus for automatically setting a broadcast channel frequency according to a region change.

General over-the-air broadcasting, such as radio and television, broadcasts using a specific frequency determined according to a channel. Specific frequencies according to these channels are different depending on the region even in the same broadcast channel. If you want to continue to listen to the same broadcast channel when moving the area, you need to change the broadcast channel frequency according to the change of area.

This problem is particularly inconvenient for radio receivers mounted in car audio systems with frequent regional changes. In order to reduce the trouble of the driver tuning to a broadcasting channel and tuning a frequency, a radio receiver installed in a conventional car audio system inputs frequencies of about 5 broadcasting channels according to channel classification numbers, and then divides the channels. If you press the number, the preset frequency is set so that you can listen to the desired broadcast channel.

However, the frequency according to the broadcasting channel input in advance in the radio receiver does not consider the frequency change according to the change of the region at all, and in most cases, the frequency is set to the broadcasting channel frequency in the region where the user mainly resides.

In addition, the conventional method displays the broadcast channel by displaying the frequency of the broadcast channel. For example, if 89.1 MHz is displayed on the channel display in the Seoul area, the broadcast channel being listened to is KBS 2FM broadcast. Therefore, if the user does not memorize the frequency according to the broadcast channel, only the channel display unit does not know which broadcast channel the broadcast being listened to. Of course, while the broadcast often contains information that informs the broadcast channel information, this is not suitable when the user wants to receive the desired broadcast channel quickly.

The conventional method of displaying a broadcast channel by using the frequency of the broadcast channel reflects a problem that a user must manually set a frequency change according to a region change. That is, in the related art, the frequency change of the broadcasting channel cannot be automatically set according to the region change, and the user must manually set the frequency by using the channel display unit displaying the frequency. Therefore, the broadcasting channel must be displayed by using the frequency. It is not there.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problem, and an object of the present invention is to automatically set a frequency of a broadcasting channel that changes according to a region change, and display a broadcasting channel instead of displaying the broadcasting channel using the frequency of the broadcasting channel. An apparatus for automatically setting a broadcast channel frequency capable of directly displaying a broadcast channel name as a character string is provided.

1 is a block diagram of an apparatus for automatically setting a frequency of a broadcast channel according to an embodiment of the present invention.

Explanation of symbols for the main parts of the drawings

10: broadcast channel display unit 11: region change detection unit

12: storage unit 13: control unit

14: frequency setting unit

In order to achieve the above object, the present invention provides an apparatus for automatically setting a frequency of a broadcast channel selected by a user when a region of a broadcast receiver is changed, the region change detector for detecting a region movement of a broadcast receiver, broadcasting according to a region A storage unit for storing a frequency of a channel, a controller for outputting a control signal for setting a corresponding local frequency of a broadcast channel selected by referring to a broadcast channel frequency in the storage unit by a zone change detection signal from the zone change detection unit, and a broadcast unit; An apparatus for automatically setting a frequency of a broadcast receiver according to a region change includes a frequency setting unit configured to automatically tune a frequency of a receiver and set a corresponding local frequency of a selected broadcast channel by the control signal.

The display apparatus may further include a broadcast channel display unit which displays the broadcast channel selected by the user as a character string so that the character string of the displayed broadcast channel does not change even if the frequency of the broadcast channel is changed according to a region change.

Hereinafter, an apparatus for automatically setting a broadcast channel frequency according to the present invention will be described in detail with reference to the accompanying drawings.

Since the apparatus according to the present invention automatically sets the frequency of a broadcast channel according to a region change, in order to display a received broadcast channel, it is not necessary to display the frequency of the broadcast channel as in the conventional manner, but rather a character string of a broadcast channel name. You can also mark 1 illustrates a case where a broadcast channel is displayed as a character string. The apparatus according to the present invention includes not only displaying a broadcast channel as a character string but also displaying a broadcast channel as a frequency, and when displaying a broadcast channel as a frequency, the broadcast channel is automatically displayed at a receiving frequency set according to a region change. Can be changed.

1 is a block diagram of an embodiment of an apparatus for automatically setting a broadcast channel frequency according to the present invention.

As shown in FIG. 1, the apparatus for automatically setting a broadcast channel frequency according to the present invention includes a broadcast channel display unit 10 for displaying a broadcast channel as a character string, a region change detection unit 11 for detecting a region movement of a broadcast receiver, and a region. The storage unit 12 stores the frequency of the broadcast channel according to the corresponding region of the selected broadcast channel with reference to the broadcast channel frequency stored in the storage unit 12 by the region change detection signal from the region change detection unit 11. A control unit 13 for outputting a control signal for setting the local frequency, and a frequency setting unit 14 for automatically tuning the frequency of the broadcast receiver to set the corresponding local frequency by the control signal.

In displaying the broadcast channel, the broadcast channel display unit 10 does not display the frequency of the broadcast channel as in the conventional method, but displays the broadcast channel name as a character string.

Since the apparatus for automatically setting a broadcast channel frequency according to the present invention automatically sets the frequency of a broadcast channel in accordance with a region change, it is not necessary to display the broadcast channel by frequency. Instead, if the broadcast channel is displayed as a character string, and the user selects the broadcasting channel through the selection button, the user can receive the same broadcast channel regardless of the frequency change according to the region change.

For example, the selection code of each broadcasting channel is displayed in English characters such as KBS1, KBS2, MBC, SBS, CBS, or in Korean, such as traffic broadcasting, educational broadcasting, Christian broadcasting, and the like. When selecting and pressing the (DOWN) key, a character string indicating a broadcast channel appears on the display unit 10 each time, and the frequency of the broadcast channel corresponding to the character string is automatically set according to a region so that a desired broadcast channel can be received. do.

The region change detection unit 11 is for recognizing the region change first because the frequency of the broadcast channel changes according to the region change when a broadcast receiver such as a television or a radio has a region change.

As a method of detecting a change of area by movement in the area change detection unit 11, a manual method in which a user directly inputs an area, a method using a wide area pager, and a method using a GPS (Global Positioning System) You can think of

In the manual method of manually inputting the region, the nation is divided into several regions in advance according to the change of broadcasting frequency, and the user can manually select the region. Although it is possible to implement inexpensively because no additional device is required, whenever a region change occurs, a user must input a region selection button at a boundary point of the region.

The method using the wide area pager should include a wide area pager in the area change detection unit 11. The wide area wireless paging system divides the whole country into several regions and transmits call information using different frequencies depending on the region. The wide area pager stores reception signal strengths for different frequencies according to the area, and performs the standby operation to determine the area corresponding to the frequency with the greatest intensity as its own area, thereby making it easy to change the area. Can be detected.

The method of using a GPS system using a satellite can accurately detect a user through a satellite, but there is a disadvantage in that a GPS receiver must be provided. However, in the future, when a traffic guidance device or an automatic navigation device using a GPS system is introduced, For example, the GPS system may be used incidentally to detect regional changes.

The storage unit 12 stores frequencies of broadcast channels according to regions.

The frequency of the broadcast channel according to the region stored in the storage unit 12 is stored in a manner of receiving the required frequency information value from the wireless communication base station or satellite according to the region change, and the storage unit 12 frequency by region There is a look-up table method of storing a table and referring to a frequency of a broadcast channel corresponding to a changed region.

The control unit 13 outputs a control signal for setting the corresponding local frequency of the selected broadcast channel by referring to the broadcast channel frequency in the storage unit by the zone change detection signal from the zone change detection unit 11 from the zone change detection unit 11. do.

The frequency setting unit 14 automatically tunes the frequency by programming the PLL driving unit of the broadcast receiver to set the corresponding local frequency by the control signal.

According to the apparatus for automatically setting a broadcast receiver frequency according to the present invention, if a broadcast channel indicated by a character string is selected, the same broadcast channel can be continuously received regardless of local movement. For example, suppose that the user has selected KBS2 FM broadcast as the character display tuner of the broadcast channel. When a user moves from Seoul to Daejeon by car, or when a general digital radio is taken from Seoul to Daejeon, in Seoul, 89.1 MHz, which is the frequency corresponding to KBS2 FM broadcasting, is automatically set to 98.5, which is the frequency corresponding to KBS2 of Daejeon. KBS2 is continuously displayed on the display unit.

As described above, the apparatus for automatically setting a frequency of a broadcast channel according to the present invention automatically sets a frequency of a broadcast channel that changes according to a region change, and instead of displaying the broadcast channel using the frequency of the broadcast channel. There is an advantage that the channel display unit can directly display the broadcast channel name as a string.

Claims (2)

An apparatus for automatically setting a frequency of a broadcast channel selected by a user when a region of a broadcast receiver is changed, A region change detector detecting a region movement of the broadcast receiver, a storage unit storing a frequency of a broadcast channel according to the region; A control unit for outputting a control signal for setting a corresponding local frequency of a broadcast channel selected by referring to a broadcast channel frequency in the storage unit by a zone change detection signal from the zone change detection unit; And a frequency setting unit configured to automatically tune a frequency of a broadcast receiver to set a corresponding local frequency of the selected broadcast channel by the control signal. The apparatus of claim 1, wherein the apparatus for automatically setting a frequency of a broadcast channel according to the region change includes: Automatically setting the frequency of a broadcast channel according to a region change by displaying a broadcast channel selected by a user as a character string, and further including a broadcast channel display unit in which the character string of the displayed broadcast channel does not change even if the frequency of the broadcast channel is changed according to a region change. Device.