JP3466794B2 - FM multiplex broadcast receiver - Google Patents

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 for receiving digital data such as news of sequentially complemented program information and accumulated information which is multiplexed with an FM radio broadcast and transmitted from a broadcasting station.

[0002]

2. Description of the Related Art In commercial FM radio broadcasting, an F that transmits digital data such as program information and news by superimposing it on a frequency band that is not used for transmitting audio.
M multiplex broadcasting is being performed.

As shown in FIG. 1, a plurality of formats including a display format 0 to 3 and a free format are previously defined as a display format of an FM multiplex broadcast program. Then, as shown in FIG. 2, the display format of each program is defined (designated) by the program data header in the format of the information of the program transmitted from the broadcasting station.

In the current FM multiplex broadcast receiver, a display device compatible with the format 0 is mainly used in order to prevent the display element and the display memory from becoming expensive. FIG. 3 shows a specific display area example of the format 0. As the types of programs to be sent in the format 0, there is one program of sequentially complementary program information and several programs of accumulated information such as news.

On the FM multiplex broadcasting receiver side, a menu screen of the program information sent from the broadcasting station side is displayed,
The selected program was being displayed. In a display device capable of displaying a plurality of pages on one screen, a plurality of pages including a header are displayed, or a header is omitted to display a plurality of pages.

[0006]

However, in such a display device capable of displaying a plurality of pages, when the header is displayed, the header having the same content is displayed many times, resulting in a loss of the display section. In addition, when the header is omitted and displayed, there arises a problem that the program content of each page cannot be identified. Also, when scrolling back the program complement page of successive complement, it becomes difficult to know which page is the latest page, or during the waiting time when the update page of the program complement page of successive complement is not transmitted easily.
I could not see the contents of other accumulated information programs.

[0007]

In order to achieve the above object, the present invention provides a channel selection means for selecting a reception signal of FM multiplex broadcasting and a superposition on the reception signal thus selected. Decoding means for decoding the FM multiplex data,
An FM having storage means for storing the decoded multiplex data, display means for displaying the multiplex data, and control means for controlling the write and read operations of the storage means and the display operation of the display means. a multiplex broadcast receiving apparatus, release FM multiplex in which the display means displays the information of a plurality of pages of the multiplexed data on one screen
Information on multiple pages of the multiplex data in the transceiver
Or a character that identifies whether the
Or an identification symbol consisting of symbols is displayed on the display means.
This is characterized by providing an identification symbol display control means .

[0008]

[0009] The invention of claim 2, wherein the table on the display means
The information shown is on two pages.
The information is information about the latest page and the old page when the program-interlocked pages of sequential complement are scrolled back.

[0010] According to a third aspect, the table on the display means
Shown is information on two pages,
Information is assigned to the program-interlocked page of successive complement and the information of stored information program, the program-interlocked page of successive complement constantly updates and displays the latest page, and the page of stored information program is automatically paged at regular time intervals. It is characterized in that it is displayed.

[0011]

According to the FM multiplex broadcast receiver of the first aspect, the information of a plurality of pages displayed on the same screen is information of a plurality of programs by the identification symbol display control means or a plurality of pages in the same program. Since an identification symbol such as a character or a symbol indicating whether or not the information is displayed, the connection of each page, the program name, etc. can be identified.

According to the FM multiplex broadcast receiver of the second aspect, information of a plurality of pages displayed on the same screen includes:
The identification symbol display control means displays the identification symbol such as a character or a symbol indicating whether the page is the latest page or the old page when the program-interlocked page of sequential complement is returned and scrolled. Even when the program-linked page is displayed and the page return / forward scroll is repeated, it is possible to easily determine which page is the latest page that matches the current broadcast content.

[0014] According to FM other受放transceiver of claim 3, wherein, the information of a plurality of pages to be displayed on the same screen, and sequentially supplement program linked information and displays the updated constantly recent pages, a predetermined time The information of the accumulated information program which is automatically page-fed and displayed at intervals of the above, and the identification symbol display control means displays an identification symbol such as a character or a symbol indicating which information the information is. It

Therefore, in displaying a plurality of pages on the same screen, the contents of other stored information programs are automatically page-fed and both of them are displayed at the same time while displaying sequentially complemented program-linked pages. A large amount of information can be automatically displayed without performing a feed operation. In this case, it is easy to determine whether the information displayed on each page is a program-completion page of sequential complement or a page of stored information programs. It can be surely identified.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION <First Embodiment> An embodiment of an FM multiplex broadcast receiver of the present invention will be described in detail with reference to the drawings. FIG. 4 illustrates an F according to an exemplary embodiment of the present invention.
It is a block diagram of an M multiplex broadcast receiver. In FIG.
Reference numeral 1 is a tuner unit that receives radio waves from an FM broadcasting station and performs detection, 2 is an FM multiplex decoding unit that decodes multiplexed data from the detection output of the tuner unit 1, and 3 is multiplex decoded by the FM multiplex decoding unit 2. A control unit (CPU) 4 for performing control for displaying data is a font ROM in which font data for displaying characters is stored.

Reference numeral 5 is a storage unit (RAM) for storing the information to be displayed and the multiplexed data decoded by the FM multiplex decoding unit, and 6 is the character information of the format 0 described in FIG. 3 for two pages. It is a display unit having a display screen that can be displayed, and causes the control unit 3 to display an identification symbol such as a character or a symbol for identifying the type of display data for two pages displayed on the display unit 6. An identification symbol display control unit 7 is provided.

In order to display the character information for two pages on the display section 6, the detection output of the tuner section 1 is decoded by the multiplex decoder section 2, the decoded multiplex data is stored in the storage section 5, and the control section. Depending on how the information stored in the storage unit 5 is read out in 3, information for the same program for two pages is displayed, or information for another two programs is divided into upper and lower one page each. Control whether to display.

When the information of another two programs is separately displayed on the display section 6 by one page, the identification symbol display control section 7 provided in the control section 3 displays the information on the display section 6. A symbol (in the present embodiment, angle brackets) indicating that the two pieces of information are different programs is generated, and the upper two rows and the lower two rows are respectively displayed on the right end of the display unit 6 as shown in FIG. 5A. This symbol is added to and displayed.

When the information of the same program is divided into two pages and displayed on the display unit 6 vertically, the symbols for all four lines are added to the right end of the display unit 6 as shown in FIG. 5B. And display it. In this way, the identification symbol display control unit 7 generates an identification symbol corresponding to the display page for the character information displayed on the display unit 6 and adds this symbol, so that information in the same program for two pages is displayed. It is possible to easily determine whether the information is being displayed, or whether the information of another two programs is being displayed separately for each page. In addition,
In the present embodiment, the angle brackets are displayed on the right end of the display unit 6, but the display position may be any position where the upper two lines and the lower two lines can be distinguished (for example, the left end), and the symbols to be displayed are also angle brackets. Does not have to be, and the symbols do not necessarily have to be the same.

As another example, as shown in FIG. 5C, by displaying the program numbers given to the programs in the upper two rows and the lower two rows respectively, the information in the same program for two pages can be displayed. It is possible to easily determine whether it is being displayed, or whether the information of another two programs is being displayed separately for each page. Also, this does not necessarily have to be based on the program number given to the program, such as displaying the initials of the program name given to the program.
Any program that can identify whether it is the same program or a different program may be used.

<Embodiment 2> As described above, the present apparatus can display the text information for two pages on the display unit 6, and thus the information in the same program can be displayed for two pages. is there. In addition, the sequential complement information of format 0 is sent as character information from the broadcasting station every two lines, that is, one page at a time. In the present device, this sequential complement information is stored in the storage unit 5 for a plurality of pages.

The successive complement information stored in the storage unit 5 can be read out by the control unit 3 as needed and the desired old information can be displayed. The display in this case is shown in FIG. 6a.
As shown in, the information of the latest sequential complement program is displayed on the lower two lines of the display unit 6, and the previous information is displayed on the upper two lines. In this case, it is of course possible to switch the upper and lower sides and display the information of the latest sequential complement program on the upper two lines and display the previous information on the lower two lines.

At the right end of the upper two lines of the display unit 6, the identification symbol display control unit 7 adds and displays a symbol indicating that it is the information of the immediately preceding complementary program. As a result, it is possible to identify that the information displayed in the relevant part is the previous information. In order to distinguish the symbols added in this case from the symbols exemplified in the first embodiment, the same symbols can be displayed by blinking or can be different symbols, and the display position of the symbols can also be changed in the embodiment. As in the case of 1, the position may be any position where the upper two rows and the lower two rows can be distinguished.

<Third Embodiment> Further, in the present apparatus, by storing the sequential complement information in the storage unit 5 for a plurality of pages,
It is possible to read and display old information as needed. In a device that can display character information of format 0 for only one page, when reading and displaying old information (return scroll), old information is displayed on the entire screen, and the latest information cannot be viewed in that state. Is common.

This apparatus can display the text information for two pages on the display unit 6, and when the scroll back is performed from the display state shown in FIG. 6 (a), as shown in FIG. 6 (b). Only the upper two lines can display the old information backward and the lower two lines can display the latest information.
As a result, the upper 2
In a row you can scroll back and see the old information.

<Embodiment 4> Further, in the present apparatus, it is possible to display the text information for two pages on the display section 6, and the contents of this display can be determined by using the information stored in the storage section 5 by the control section 3. Depending on whether it is read out, the information of the other two programs can be displayed separately for each page, one for each page. FIG. 7 shows an example of the display in this case.
The sequentially supplemented programs are displayed in the upper two lines of the above, and the accumulated information programs are displayed in the lower two lines.

With a device capable of displaying character information of format 0 for only one page, it was not possible to successively watch complementary programs while watching stored information programs. Stored information programs are generally composed of multiple pages of information, and if this page feed is automatically performed at regular intervals,
With this device function, you can view the latest sequential complementing program in the upper two rows and page-display the stored information programs at fixed time intervals in the lower two rows, which enables new usage that has never existed before. Becomes

Further, the stored information program is not limited to one program, but a plurality of programs such as news and weather forecast are generally broadcast. Therefore, it is possible to provide a function of automatically performing the above-described page turning at regular intervals and automatically switching the programs when the last page of the program is reached, and repeating this. If such a function can be performed with a single button operation, for example, all pages of all programs can be sequentially and automatically displayed without manually switching programs or turning pages. It became possible to enjoy even without performing complicated operations.

In the display device of the FM multiplex broadcast receiver according to the above-described embodiment, the character information displayed on the display unit 6 is for two pages, but the present invention is not limited to this, and three or more pages are included. It may have a display function for a plurality of pages. Further, in the above-described embodiment, the header portion is omitted in the information for one page to be displayed for convenience of description, but it may have a display function for displaying the header portion. Further, in the above-described embodiment, the description is limited to the format 0, but the present invention can be applied to other formats (formats 1 to 3 and free format).

[0031]

Since the present invention is constructed as described above,
Multiple data in FM multiplex broadcasting can be displayed simultaneously for multiple pages, and the information on that page can be for multiple programs or for the same program.
You can also display an identification symbol that identifies whether
Even when a plurality of pages are displayed, the connection of each page and the program content can be easily identified. Further, even when two consecutively complemented program-linked pages are displayed, it is possible to easily identify which is the latest page. You can watch it automatically without operating.

[Brief description of drawings]

FIG. 1 is a diagram showing contents of a display format of FM multiplex broadcasting.

FIG. 2 is a diagram showing a configuration example of a program data header of FM multiplex broadcasting.

FIG. 3 is a diagram showing an example of a format 0 display area in a display format of FM multiplex broadcasting.

FIG. 4 is a block diagram of an embodiment of an FM multiplex broadcast receiver of the present invention.

FIG. 5 is a diagram showing a display example of a display device according to the present invention.

FIG. 6 is a diagram showing another display example of the display device according to the present invention.

FIG. 7 is a diagram showing still another display example of the display device according to the present invention.

[Explanation of symbols]

1 tuner 2 FM multiplex decoding section 3 control unit 5 memory 6 Display 7 Identification symbol display control unit

Continuation of the front page (56) Reference JP-A-9-83393 (JP, A) JP-A-8-307372 (JP, A) JP-A-6-233262 (JP, A) (58) Fields investigated (Int .Cl. ⁷ , DB name) H04H 1/00 H04B 1/16

Claims (3)

(57) [Claims] 1. A tuning unit for selecting a reception signal of FM multiplex broadcasting, a decoding unit for decoding FM multiplex data superimposed on the selected reception signal, and a storage unit for storing the decoded multiplex data. and display means for displaying the multiplexed data, a FM multiplex broadcast receiving apparatus provided with a control means for controlling the display operation of the display means to control the write and read operations of said storage means, said display means In the FM multiplex broadcasting receiver for displaying information of multiple pages of the multiplex data on one screen, is the information of multiple pages of multiplex data of multiple programs?
Identification consisting of letters or symbols that identify the same program
Identification symbol display control hand for displaying another symbol on the display means
An FM multiplex broadcast receiver having a step . 2. Information on two pages is displayed on the display means.
2. The F according to claim 1, wherein the information of the two pages is information of the latest page and the old page when the program-interlocked pages of successive complements are scrolled back.
M multiplex broadcast receiver. 3. Information on two pages is displayed on the display means.
These two pages of information are allocated to the program-interlocked page of successive complement and the information of stored information program, and the program-interlocked page of successive complement constantly updates and displays the latest page, and the page of stored information program is displayed for a certain period of time. 2. The FM multiplex broadcast receiver according to claim 1, wherein the page is automatically paged and displayed at intervals of.