JPH1032511A - Fm multiplex broadcast receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an FM multiplex broadcast receiver that displays a program having been displayed just before power is interrupted with priority when the power is applied again. SOLUTION: A service identification data (SI) denoting a program just before power is interrupted and a data group number are stored in a RAM 7, and when the program data received by a tuner 2 after application of power and outputted from a reception LSI 4 are coincident with data of a last program stored in the RAM 7, the program is displayed on a display section 9. When unmatching, a table of content program or a supplementary program is displayed for the time being and when the same program as the last program is received, the program is displayed on the display section 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an FM multiplex broadcast receiver, and more particularly to an FM multiplex broadcast receiver for receiving an FM multiplex broadcast in which character data is multiplexed on an FM audio signal.

[0002]

2. Description of the Related Art In FM multiplex broadcasting, FM audio signals are multiplexed with text information such as news and weather forecasts and broadcast. The text information forms one news program or one weather forecast program on a plurality of pages, and each program is displayed in a general table of contents. When any program is selected in the table of contents, the first page of the program is displayed, and the next page is displayed each time the operation key is operated.

[0003]

In a conventional FM multiplex broadcast receiver, for example, when a power is turned off while a news program is being displayed, and then turned on, a program of the total table of contents or music being broadcast is displayed. There is a problem that a complementary program indicating a song name is displayed, and the user has to perform a channel selection operation each time, so that there is a trouble in selecting a program.

[0004] Therefore, a main object of the present invention is to provide an FM multiplex broadcast receiver capable of automatically receiving a program received immediately before the power is turned off when the power is turned on again.

[0005]

The invention according to claim 1 is
In an FM multiplex broadcast receiver for receiving an FM multiplex broadcast in which text data is multiplexed on an audio signal, a tuner for receiving the FM multiplex broadcast and data indicating a program displayed immediately before the power is turned off are stored. Control means for outputting data of the program if the program received by the tuner when the power is turned on matches data indicating the program stored in the storage means; And display means for displaying the program data output from the program.

In the invention according to claim 2, the program is composed of a plurality of pages, and if the received program matches the data indicating the program stored in the storage means,
The first page of the program, the page displayed immediately before the power is turned off, or the first received page is displayed on the display means.

According to a third aspect of the present invention, the control means of the first aspect displays the once received program on the display means if the received program does not match the data indicating the program stored in the storage means. Display.

[0010] The invention according to claim 4 further includes a selection means for selecting a program, wherein the control means controls the program by the selection means before the program matching the data indicating the program stored in the storage means is received. Is selected,
The program is displayed by the display means.

[0009]

FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, an FM broadcast wave is received by a tuner 2 via an antenna 1. The tuner 2 demodulates and amplifies the right channel and left channel audio signals from the received FM broadcast radio waves, and supplies the audio signals to the speaker 3. Further, the tuner 1 demodulates the data multiplexed from the FM broadcast wave and outputs it to the receiving LSI 4 as a composite signal.

The receiving LSI 4 is supplied with a clock signal from the CPU 5, and the receiving LSI 4 sequentially transmits character data from the composite signal based on the clock signal.
Give to. The ROM 5, the RAM 7, the operation keys 8, and the display unit 9 are connected to the CPU 5. The ROM is shown in Figs.
A program based on the flowchart shown in FIG. 4 is stored in advance, and the RAM 7 stores data for the CPU 5 to process. The operation keys 8 are operated to select a program or a desired page. The display unit 7 displays character information of the program.

FIG. 2 is a flowchart for explaining an operation for preferentially displaying the last program, FIG. 3 is a flowchart for explaining a process for storing the last program information, and FIG. 6 is a flowchart showing the processing of FIG.

Next, a specific operation of one embodiment of the present invention will be described with reference to FIGS. In response to the operation of the operation key 8 of FIG. 1, the CPU 5 gives a tuner command to the tuner 2 so that the broadcast wave specified by the operation key 8 is received. In response, tuner 2 receives the broadcast wave and provides a composite signal to receiving LSI 4, which provides program data to CPU 5 based on a clock signal from CPU 5. The CPU 5 displays the program data on the display unit 9 and displays the service identification SI.
And a data group number composed of a combination of a program number and a page number. Each time the operation key 8 is operated, the RAM 7 stores a service identification S of the selected program.
I and the data group number are stored.

When the power is turned off and then turned on again,
The CPU 5 determines whether the last program has been received according to the flowchart shown in FIG. This judgment is shown in FIG.
As shown in the figure, the identification code SI and the data group number of the received program are obtained from the data based on the composite signal received by the tuner 1 when the power is turned on, and the identification code SI and the data group of the last program stored in the RAM 7 are obtained. The numbers are compared, and if they match, it is determined that the program is the last program, and the program data is displayed on the display unit 9.

If the program received after the power is turned on is not the last program, it is determined whether or not a table of contents program or a complementary program has been received. Here, the supplementary program is a program that notifies the title of the music currently being broadcast. When it is determined that the table of contents program or the complementary program has been received, the table of contents program or the complementary program is displayed on the display unit 9 for the time being. Thereafter, it is determined whether or not the last program has been received. This operation is the same as the processing shown in FIG.
If the user operates the operation keys 8 to select a program or turn a page before the last program is received, the priority display of the last program is invalidated and the selected program or the program of the turned page is displayed. It is displayed on the display unit 9.

Therefore, in this embodiment, when a news program is displayed on the display unit 9 before the power is turned off, the service identification SI and the data group number are stored in the RAM 7 as data of the last program. Every
If the program received when the power is turned off and turned on again matches the program based on the data group number stored in the RAM 7, the first page of the news program or the same page as the page before the power was turned off is immediately obtained. Alternatively, the first received page can be displayed, and the same program as the program that the user has watched last can be viewed, so that the trouble of selecting the program can be eliminated.

[0016]

As described above, according to the present invention, the data indicating the program received immediately before the power is turned off is stored, and the program received when the power is turned on is stored. If the data coincides with the data indicating the selected program, the program is displayed preferentially, so that the trouble of selecting the program is eliminated, and the same program can be continuously viewed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart for explaining an operation of preferentially displaying a last program.

FIG. 3 is a flowchart illustrating a process of storing last program information.

FIG. 4 is a flowchart illustrating a process of determining the reception of a last program.

[Explanation of symbols]

 Reference Signs List 1 antenna 2 tuner 3 speaker 4 receiving LSI 5 CPU 6 ROM 7 RAM 8 operation keys 9 display unit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masahiro Sata 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Hironori Mitou 2-chome Keihanhondori, Moriguchi-shi, Osaka No. 5-5 Sanyo Electric Co., Ltd. (72) Yoshinori Tomita 2-5-5 Keihan Hondori, Moriguchi City, Osaka Prefecture Inside (5) Sanyo Electric Co., Ltd. (72) Hiroyuki Namizaki Keihan, Moriguchi City, Osaka Prefecture 2-5-5 Hondori Sanyo Electric Co., Ltd. (72) Kanji Nakano 2-5-5 Keihan Hondori, Moriguchi-shi, Osaka Sanyo Electric Software Co., Ltd. (72) Inventor Takeharu Matsuda Osaka 2-5-5 Keihanhondori, Moriguchi-shi, Sanyo Electric Software Co., Ltd. (72) Inventor Motoaki Ogawa 1-1-1, Sakata, Oizumi-cho, Euraku-gun, Gunma FMS I Oh Sendy Liang within Bahado

Claims (4)

[Claims] 1. An FM multiplex broadcast receiver for receiving an FM multiplex broadcast in which a text signal data is multiplexed on an audio signal, wherein a tuner for receiving the FM multiplex broadcast and a display just before a power is turned off are displayed. Storage means for storing data indicating a program; and, when the power is turned on, if a program received by the tuner matches data indicating a program stored in the storage means, data of the program is stored. A FM multiplex broadcast receiver comprising: a control unit that outputs a program; and a display unit that displays data of a program output from the control unit. 2. The program comprises a plurality of pages, and if the received program coincides with data indicating a program stored in the storage means, the control means starts the first of the program. 2. The FM multiplex broadcast receiver according to claim 1, wherein a page, a page displayed immediately before the power is turned off, or a page received first is displayed on the display means. 3. The control means, if the received program does not match the data indicating the program stored in the storage means, displays the program once received on the display means. The FM multiplex broadcast receiver according to claim 1, wherein 4. The control device further includes a selection unit that selects a program, wherein the control unit selects the program by the selection unit before receiving a program that matches data indicating the program stored in the storage unit. According to the selection, the program is displayed by the display means,
The FM multiplex broadcast receiver according to claim 1.