JP3234694B2 - Data multiplex broadcasting receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data multiplex broadcast receiver for displaying identification information of a broadcast station based on multiplex data contained in radio waves from a broadcast station to be received.

[0002]

2. Description of the Related Art FM broadcast stations include a main broadcast station for creating, editing, FM-modulating and transmitting broadcast contents, and receiving a radio wave from the main broadcast station to make it difficult to receive a radio wave from the main broadcast station. There is a relay broadcasting station that relays and transmits to an area. Further F
In M multiplex broadcasting, the name of a main broadcasting station and the name of a relay broadcasting station can be transmitted as multiplexed data, and the station name, that is, station identification information can be displayed.

For example, when a basic broadcasting station such as NHK-Tokyo or NHK-Urawa is being received, the name of the main broadcasting station is given by:
When a relay broadcast station such as NHK-Hachijo or NHK-Chichibu is being received, the name of the relay broadcast station is displayed.

[0004] Therefore, the user can easily recognize the name of the broadcast station currently being received.

[0005]

However, in the above-mentioned conventional data multiplex broadcasting receiver, the radio wave from the relay broadcasting station is from the main broadcasting station, but is first included in the radio wave from the relay broadcasting station. When the multiplexed data of the broadcast station name is received, only the identification information of the relay broadcast station is displayed, so that there is a problem that it is difficult to recognize the radio wave of the main broadcast station.

[0006] When displaying the name of a relay broadcasting station, the name of the main broadcasting station can be displayed by operating a predetermined key.
Increasing the number of key operations is not preferable for safe driving.

The present invention solves such a conventional problem. Even when multiplexed data of a broadcast station name included in a radio wave of a relay broadcast station is first received, the identification information of the relay broadcast station can be obtained. It is another object of the present invention to provide an excellent data multiplex broadcasting receiver that can easily recognize the radio wave of the main broadcasting station by displaying the identification information of the main broadcasting station as well as the identification information of the main broadcasting station. I do.

In addition, even when the name of a relay broadcasting station is displayed, the name of the main broadcasting station can be automatically displayed without key operation. Therefore, an object of the present invention is to provide an excellent data multiplex broadcast receiver capable of ensuring safe driving.

[0009]

In order to achieve the above object, the invention according to claim 1 comprises a decoder for decoding multiplexed data contained in radio waves of a received data multiplex broadcast, and a decoder for decoding the multiplex data included in the received data multiplex broadcast. A display for displaying broadcast station identification information, and a data multiplex broadcast receiver having a control unit for controlling display of data on the display based on the decoded multiplexed data. Determining means for determining whether or not the identification information of the relay broadcasting station that relays and broadcasts the received information has been completed, and whether or not the identification information of the core broadcasting station has been completely received, and a predetermined time based on the determination result of the determining means. First display means for displaying the identification information of the relay station; and displaying the identification information of the core broadcast station for a predetermined time after displaying the identification information of the relay station for the predetermined time. Characterized by comprising a display means.

According to a second aspect of the present invention, in the first aspect, the third display for displaying the identification information of the relay broadcasting station again for a predetermined time after displaying the identification information of the main broadcasting station for the predetermined time. Means are provided.

[0011]

Therefore, according to the first aspect of the present invention, even if the multiplexed data of the broadcast station name included in the radio wave of the relay broadcast station is first received, only the identification information of the relay broadcast station is received. In addition, by displaying the identification information of the main broadcasting station, it is possible to easily recognize which main broadcasting station is the radio wave.

According to the second aspect of the present invention, even when the name of the relay station is displayed, the name of the main station can be automatically displayed without any key operation. In the case of a broadcast receiver, key operations are reduced, and safe driving can be ensured.

[0013]

1 and 2 show an embodiment of the present invention.
This will be described with reference to FIG.

FIG. 1 is a schematic block diagram of a data multiplex broadcasting receiver to which the present invention is applied. In this figure, 1 is F
A tuner unit 2 for receiving M broadcast radio waves is a microcomputer serving as a control means for giving a control signal to the tuner unit 1 to perform tuning control, PLL control, and the like, and for controlling the entire receiver. Reference numeral 3 denotes a multiplexed signal analysis unit which extracts and analyzes multiplexed data included in radio waves received by the tuner unit 1 and supplies the multiplexed data to the microcomputer 2, and 4 denotes a storage unit for storing the analyzed multiplexed data and other necessary data. RAM.

Reference numeral 5 denotes a key section for inputting a key operation or other command for selecting a desired broadcast station, 6 a clock signal generation section for generating a clock signal serving as a source of a system clock of the microcomputer 2, and 7 a received signal. This is a display unit for displaying a broadcast station name, that is, identification information of the broadcast station.

Next, the operation of the data multiplex broadcasting receiver having the configuration shown in FIG. 1 will be described. FIG. 2 is a flowchart of the microcomputer 2 in FIG. In FIG. 2, it is determined whether or not a relay broadcast station is being received (step S
1) If it is being received, it is determined whether or not the reception of the relay broadcasting station name data, that is, the multiplexed data of the identification information is completed (step S2). If the reception has been completed, it is determined whether the reception of the main broadcast station name data transmitted once per second has been completed (step S3), and if the reception has been completed, the relay broadcast station name is set to the first. Is displayed on the display unit 7 by the display means (step S4).

Thereafter, the timer is started (step S5), and it is determined whether or not the timer has completed (timed out) (step S6). When the timer is completed, the main broadcast station name is displayed on the display unit 7 by the second display means (step S7). Thereafter, the timer is further started (step S8), and it is determined whether the timer is completed (step S9). When the timer is completed, the name of the relay station is again displayed on the display unit 7 by the third display means.
(Step S10).

In this case, the station name is displayed on the display unit 7 by the first, second and third display means. Specifically, this is the operation of the microcomputer 2 and the multiplexed data stored in the RAM 4 The corresponding station name registered in advance is read from a character ROM (not shown) and supplied to the display unit 7.

If the reception of the data of the name of the main broadcasting station is not completed in step S3, the name of the relay broadcasting station is displayed on the first display means (step S11), and the timer is started (step S12). Then, it is determined whether or not the timer has been completed (step S13). If completed, it is determined whether or not reception of the main broadcast station name data has been completed (step S14). When the reception of the main broadcast station name data is completed, the process shifts to step S7 to execute each process up to step S10.

If it is determined in step S2 that the reception of the relay broadcasting station name data has not been completed, it is determined whether the reception of the main broadcasting station name data has been completed (step S1).
5). If the reception has been completed, the main broadcast station name is displayed on the display unit 7 (step S16), and it is determined whether the reception of the relay broadcast station name data has been completed (step S1).
7). When the reception is completed, the process shifts to step S4, and executes each process up to step S10.

[0021]

As is clear from the above embodiment, according to the first aspect of the present invention, even if multiplexed data of the broadcast station name included in the radio wave of the relay broadcast station is first received, the relay broadcast By displaying not only the identification information of the station but also the identification information of the main broadcasting station, it is possible to easily recognize the radio wave of which main broadcasting station. .

According to the second aspect of the present invention, even when the name of the relay station is displayed, the name of the main station can be automatically displayed without any key operation. In the case of a broadcast receiver, key operations are reduced, and safe driving can be ensured.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a data multiplex broadcasting receiver to which the present invention is applied.

FIG. 2 is a flowchart of a microcomputer in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tuner part 2 Microcomputer 3 Multiple signal analysis part 4 RAM 5 Key part 6 Clock signal generation part 7 Display part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04H 1/00 H04B 1/16

Claims (2)

(57) [Claims] 1. A decoder for decoding a multiplexed data included in the radio data multiplex broadcasting to be received data that the received
And a display for displaying the identification information of the broadcast station data multiplex broadcasting, data multiplexed with a control unit which performs control to display the data on the display unit based on the multiple data decoded
In the broadcast receiver, determining means for determining whether or not the identification information of the relay broadcasting station that relays and broadcasts the radio wave from the main broadcasting station has been received, and whether or not the identification information of the main broadcasting station has been received, First display means for displaying the identification information of the relay broadcast station for a predetermined time based on the determination result of the determination means; and after displaying the identification information of the relay broadcast station for the predetermined time,
It said data multiplex broadcasting receiving <br/> Shin machine for a second display means the identity of the backbone broadcasting station to display a predetermined time, comprising the. 2. The display device according to claim 1, further comprising: third display means for displaying the identification information of the relay broadcasting station again for a predetermined time after displaying the identification information of the main broadcasting station for the predetermined time. Data multiplex broadcast receiver.