JPH11331717A - Television receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To select a broadcasting station by a tuning button, even at the time of moving an area by a sense similar to that obtained prior to moving. SOLUTION: This television receiver is provided with a GPS receiver 14 for specifying the position of a self-vehicle, a preset memory 11 for storing a preset broadcasting station and its tuning button number and a broadcasting station data base 10 for storing a broadcasting station allowed to be received in each area, its channel number and frequency. A control part 8 reads out a broadcasting station allowed to be received in a certain area and its channel number from the data base 10 and rewrites a preset memory 11, so as to allocate the same broadcasting station or a broadcasting station in the same series to the same number as the preset tuning button number.

Description

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to an on-vehicle or home television receiver having a preset function.

[0002]

2. Description of the Related Art A preset function is to assign a receivable channel to a channel selection button.
Hereinafter, it refers to a function of receiving a broadcast of a desired television broadcast station simply by selecting a channel selection button. Television broadcasting is not uniform throughout the country, but varies from region to region. For example, in the Tokyo area, NHK is the first channel and the NTV is the fourth channel, whereas in the Osaka area, the NHK is the second channel and the Yomiuri television of the NTV series is the tenth channel. Therefore, when presetting is performed, channel assignment unique to the region is performed, and it is necessary to reset the preset when the region changes. In particular, in the case of an in-vehicle television receiver, there is a high possibility of movement in an area. Therefore, if the preset memory is not rewritten, not only a desired broadcast station cannot be received but also a television broadcast itself cannot be received. Sometimes.

[0003] Rewriting of a preset memory in a conventional on-vehicle television receiver is performed by sequentially searching for a television broadcast from channel 1 to channel 62, selecting a channel having a received electric field strength of a certain level or more, and pressing a channel selection button. They are assigned in order. FIG. 4 shows a conventional rewriting process of a preset memory. In FIG. 4, first, when rewriting of the preset memory is instructed (step S1), the automatic channel selecting device is activated, the frequency of the first channel is set, and the broadcast wave is received (step S2). If the electric field strength level is equal to or higher than the threshold value (step S3), the frequency channel is stored and assigned to the first channel selection button (step S3).
4). Such an operation is performed for all the channels (step S5), and the channels having a certain electric field intensity level or more are sequentially allocated by the number of tuning buttons.

[0004]

However, in the above-mentioned conventional television receiver, when the user manually rewrites the preset memory, the search for each channel requires a considerable amount of time and labor, and the automatic retrieving operation is difficult. Even when a tuning device is provided, there is a problem that it takes time. In addition, since receivable channels are selected based on the electric field strength level, when the same series of broadcasts are broadcast on different channels, both may be selected. Also, since the search is performed in order from channel 1 regardless of the broadcasting station, the channel selection buttons are allocated in the order of the receivable channels, and the order of the preset broadcasting station is different before and after rewriting the preset. There is a problem that the user has to memorize the order newly.

[0005] The present invention is to solve such a conventional problem, and provides a television receiving apparatus which can perform selection of a broadcasting station by a tuning button in the same manner as before movement even when moving from one area to another. The purpose is to provide.

[0006]

According to the present invention, in order to achieve the above object, means for rearranging channels so that preset tuning station numbers of broadcasting stations have the same tuning button numbers in different regions. It is provided with.
For example, in the case of an in-vehicle television receiver, when the station A is assigned to the channel selection button No. 1 and the station B is allocated to the number 2, the assignment at the destination is conventionally performed. In the case where station A is assigned to button 2, in the present invention, station A is assigned to button 1 and station B is assigned to button 2 in the same manner as before the movement. As a result, the user can select a channel with the same feeling as before, and can improve the usability.

[0007]

According to the first aspect of the present invention, the channels of a plurality of receivable television broadcasting stations are stored in association with a plurality of tuning buttons, and any one of the tuning buttons is selected. In a television receiver having a preset function capable of receiving a desired channel, the number of the tuning button of a preset broadcasting station can be changed to the same or the same series of broadcasting stations in different regions. This is a television receiver provided with means for rearranging channels so as to be numbers, and the user can select a channel with the same feeling as before, and has an effect of improving usability.

According to a second aspect of the present invention, there is provided a preset memory for storing preset broadcast station or channel numbers and numbers of channel selection buttons, a receivable broadcast station for each area, and a channel number and frequency thereof. Is read from the broadcast station database and the broadcast station that can be received in the area when the area is selected, and the channel number is read out from the broadcast station database, and the same number as the number of the tuning button preset previously is the same. 2. The television receiver according to claim 1, further comprising control means for rewriting the preset memory so as to allocate the same series of broadcast stations, wherein a channel receivable in the area can be preset by simply selecting the area. Has an action.

According to a third aspect of the present invention, there is provided the television receiver according to the second aspect, wherein a region is selected by an input from an operation unit, and the operation of specifying a region can be manually performed from the operation unit. Have.

According to a fourth aspect of the present invention, a number is assigned to each area, and when the preset memory is rewritten, a key for instructing rewriting and the number are input from an operation unit to enter the area. Claim 3
The television receiver described above has an operation of specifying an area by a simple operation.

According to a fifth aspect of the present invention, there is provided the television receiver according to the second aspect, wherein the area is selected by a signal from a GPS receiver, and has an effect that the area can be automatically selected. .

According to a sixth aspect of the present invention, a GPS
6. The television receiver according to claim 5, wherein the television receiver is connected to an in-vehicle navigation device having a receiver, and has an effect that a GPS receiver, a display device, and the like can be shared with the navigation device.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of an on-vehicle television receiver according to an embodiment of the present invention. In FIG. 1, 1 is an antenna for receiving a television broadcast wave, 2 is a tuner section for selecting a desired channel from the received TV broadcast wave and outputting a video intermediate frequency signal,
3 is an intermediate frequency amplifying section for amplifying the video intermediate frequency signal, 4 is an audio signal processing section for detecting and amplifying an audio signal from the video signal,
Reference numeral 5 denotes a speaker that outputs audio, 6 denotes a video signal processing unit that detects and amplifies a video signal, 7 denotes a display such as a liquid crystal device that outputs video, and 8 denotes a control unit, which controls the entire device. Reference numeral 9 denotes an operation unit for giving an instruction to the device, and a remote controller attached to the device or for remote control is used. Reference numeral 10 denotes a broadcast station database, which stores an area name, a broadcast station name in the area, a channel number used by the broadcast station, and a used frequency, as shown in FIG. Reference numeral 11 denotes a preset memory, which stores a channel selection button number provided on the operation unit 9 and a corresponding broadcast station name, as shown in FIG. 2B. Numeral 12 denotes an in-vehicle navigation device, which in addition to estimating the current position by a vehicle speed sensor and a direction sensor, receives a radio wave from a satellite by a GPS antenna 13 and a GPS receiver 14 to improve the accuracy of estimating the current position, The position is superimposed on the map data displayed on the display 7, and the driver's position is displayed to the driver. It also has a route search function, and by entering a destination,
The optimal route from the current location to the destination can be displayed.

Next, the operation of the present embodiment will be described. Since the original operation of the television is the same as the conventional operation, only the preset operation will be described here. First, when this device is purchased, a television broadcast station in that area is stored in the preset memory 11 in association with the tuning button. For example, the station selection button 1 is station A, the station 2 is station B,
3 is assigned as station C. Only in the first preset, the tuner unit 2 searches all the channels under the control of the control unit 8 and selects a channel having a high electric field strength as in the conventional case. After presetting in this manner, when the tuning button of the operation unit 9 is pressed, the control unit 8 selects the corresponding broadcasting station from the preset memory 11, reads the frequency of the broadcasting station from the broadcasting station database 10, and reads the frequency of the broadcasting station. It can be set in the section 2 to receive the television broadcast of the broadcasting station. When the user moves from one area to another, it is necessary to rewrite the preset memory at the destination.

FIG. 3 is a flowchart showing a preset memory rewriting operation in the present embodiment. First, the operation unit 9
By pressing the function key of (1), an instruction to rewrite the preset memory is issued (step S11). Then, the control unit 8 inquires of the navigation device 12 about the current position, and the navigation device 12 specifies the own vehicle position from the longitude and latitude information received by the GPS receiver 14,
The signal is sent to the control unit 8. The control unit 8 determines to which prefecture it belongs from the signal indicating the position of the vehicle (step S
12) Read the name of the broadcasting station in that prefecture and its channel number from the broadcasting station database 10 (step S).
13) The preset memory 11 is rewritten so that the same or the same series of broadcast stations are assigned to the same numbers as those of the previously selected channel selection buttons (step S1).
4). For example, as shown in FIG. 2 (a), if it is assumed that before the movement, the prefecture A is moved to the prefecture B,
As shown in (b), each of the tuning buttons 1, 2, and 3 has A
Station B, Station B, and Station C were assigned.
In the conventional method, the station selection button 1 is B station, 2 is A station, 3 is C
On the other hand, in the present embodiment, the station is assigned, and the channel selection buttons 1 and 2 are assigned in the same manner as before the movement, regardless of the channel number.
Stations A, B, and C are assigned to stations 2 and 3, respectively.

As described above, according to the present embodiment, the GPS receiver 14 for specifying the position of the own vehicle, the preset memory 11 for storing preset broadcast stations and their channel selection button numbers, and the reception for each area The control unit 8 includes a broadcast station database 10 that stores possible broadcast stations and their channel numbers and frequencies, and the control unit 8 controls the broadcast stations that can be received in the area based on a signal indicating the position of the vehicle from the GPS receiver 14. And its channel number are read from the broadcast station database 10 and the preset memory 11 is rewritten so that the same or the same series of broadcast stations are assigned to the same numbers as the previously selected channel selection buttons. Of the preset memory 11 can be automatically rewritten, and the broadcast stations corresponding to the channel selection buttons before and after the movement are the same or different. Because the same series, it is possible to operate the channel selection button in the same way as before the move.

In the above embodiment, the signal for specifying the area is obtained from the signal from the GPS receiver 14. However, when the GPS receiver 14 or the navigation device 12 is not provided, the signal from the operation unit 9 is provided. By inputting a signal, for example, assigning a number to each prefecture or each region, and inputting the number from the operation unit 9, the control unit 8 allows the control unit 8 to display the name of the broadcasting station and the channel number in the prefecture or the region corresponding to the number. 10, the preset memory 11 may be rewritten by the method described above.

In the above embodiment, the present invention is described as an in-vehicle television receiver, but the present invention may be applied to a home television receiver. In this case, the area is specified by an input from the operation unit. Also, since the tuning button corresponds to the channel number, for example, in the case of the Tokyo area,
No. 1 is NHK, No. 4 is NTV, No. 6 is TVK, so if you move to another area, even if the channel number in that area is different, No. 1 will be NHK.
The channel numbers are exchanged so that K and 4 are NTV sequences and 6 is a TVK sequence.

[0019]

As described above, according to the present invention, the channels are rearranged so that the channel selection button numbers of preset broadcast stations are the same channel selection button numbers in different regions. Can select a channel with the same feeling as before, and can greatly improve the usability.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram illustrating a configuration of a television receiver according to an embodiment of the present invention.

FIG. 2A is a schematic diagram showing a data structure of a broadcast station database in the embodiment; FIG. 2B is a schematic diagram showing a data structure of a preset memory in the embodiment;

FIG. 3 is a flowchart showing a preset memory rewriting operation in the embodiment.

FIG. 4 is a flowchart showing a preset memory rewriting operation in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna 2 Tuner part 3 Intermediate frequency amplification part 4 Audio signal processing part 5 Speaker 6 Video signal processing part 7 Display 8 Control part 9 Operation part 10 Broadcasting station database 11 Preset memory 12 Navigation device 13 GPS antenna 14 GPS receiver

Claims (6)

[Claims] 1. A preset function capable of storing channels of a plurality of receivable television broadcasting stations in correspondence with a plurality of tuning buttons and receiving a desired channel by selecting one of the tuning buttons. In a television receiver, there is provided a television having means for rearranging channels so that the number of a tuning button of a preset broadcasting station is the same as the number of a tuning button for broadcasting stations of the same or the same series in different regions. Receiver. 2. A preset memory for storing preset broadcast station or channel numbers and channel selection button numbers, a broadcast station database for storing receivable broadcast stations for each area, channel numbers and frequencies thereof, When selected, the receivable broadcast stations and their channel numbers are read out from the broadcast station database, and the same or the same series of broadcast stations are assigned to the same numbers as the numbers of the tuning buttons previously preset. The television receiver according to claim 1, further comprising control means for rewriting the preset memory. 3. The television receiver according to claim 2, wherein the selection of the area is performed by input from an operation unit. 4. The television according to claim 3, wherein a number is assigned to each area, and when the preset memory is rewritten, the area is selected by inputting a key for instructing rewriting and the number from the operation unit. Receiver. 5. The television receiver according to claim 2, wherein the selection of an area is performed by a signal from a GPS receiver. 6. The television receiver according to claim 5, wherein the television receiver is connected to an in-vehicle navigation device having a GPS receiver.