JPH02153630A - Additional information receiver - Google Patents

Abstract

PURPOSE:To attain display which does not give a sense of incompatibility to a user by permitting a control means to store all the character codes or character data of the name of broadcasting stations by corresponding to address codes and transmitting character data to a display means. CONSTITUTION:The address codes and the character codes are detected from one group of RDS (radio data system) data which multiplex digital data to an FM radio signal, and the character codes are stored in the area of a code memory 19 corresponding to the address codes. The character codes by eight characters are stored in the code memory 19 and the character codes are read in the order of the addresses. Then, character data corresponding to the character codes are read from a font memory 20 and stored in a data memory 18. Character data in the data memory 18 are transmitted to a driving circuit 9 and simultaneously displayed in a character display after seven seconds elapse in such a state, for example. Thus, the names of the broadcasting stations are simultaneously displayed when additional data are multiplexed, and the sense of incompatibility is not given to the user.

Description

[Detailed description of the invention]

Field of the Invention The present invention relates to an additional information receiver that displays broadcasting station names. The same conventional technology In recent years, E (Da (radio d
The RDS standard has been compiled by the European Broadcasting Union (EBU, 1).
Radlo Data System RD8
for VHF/FM 5ound Broa
dcasting”, EBU Document T
eeh, 3244-ga Mar. It was introduced in 1984. According to this, RD8
The data consists of 4 blocks as i group, and the 1st group a")
KPIs are always set.
tiflcatlon code (deaf RAM identification code) is written, and the second block serves as an address block that indicates what is written in the third and fourth blocks. Therefore, messages sent using RDS include PS (p
program asrvlce name), which is used to display the name of the broadcasting station using alphanumeric characters of up to 8 characters. This PS has a character code for 2 characters in the N4 block (16 bits, the first 8 bits represent the 7th character of 1* a a s n, and the latter 8 bits represent the 2.4th, 6.8th character). ), and segment address codes C1 and CD (2 bits) are assigned to the second block. However, when receiving this PS and displaying the broadcasting station name, if the character code is converted into character data in segments in the order of reception and transferred to the display means, the first character will not be displayed.
Starting with the middle letters, the raw liver is displayed at intervals of 90 minutes, which gives the user a sense of discomfort. Additionally, if a Union Jack segment display is used, some characters may appear that cannot be displayed, and if those characters exist in the broadcasting station name, different characters may be displayed and there is a risk of WAMing the station. a. 90-9 The a-dam invention that the invention seeks to solve takes into account the above-mentioned drawbacks, and provides a broadcasting station that is capable of full display without giving any discomfort to the user, and that has characters of 1 ft that cannot be displayed on the display means. This allows the user to easily guess the broadcasting station even when receiving name data. Ninth Means for Solving the Problems The additional information receiver of the present invention includes additional information data extraction means for extracting additional information data from a broadcast signal, storage means,
A display means for displaying a broadcasting station name and a character code and an address code are detected from the additional information data from the additional information data extracting means, and the character code is converted into character data so as to be displayed at the next display position according to the address code. and a control means for storing all the character codes or character data of the broadcasting station name in the storage means according to the address code, and then transmitting the character data to the display means. It is sent to Preferably, said control means is for transmitting frequency data to a local oscillator circuit and display means. More preferably, the control means includes a timer means kN for counting a time longer than the time required to store all the character codes or character data of the broadcasting station name in the storage means, and when the additional information data includes the broadcasting station name data. If jin is detected,
It activates the timer means and controls the switching from displaying the received frequency to displaying the name of the broadcasting station. More preferably, the control means controls switching between the reception frequency display and the broadcasting station name display based on the display switching selection means. Further, another additional information receiving 4iI of the present invention includes additional information data extraction means for extracting additional information data from a broadcast signal;
The character code and address code are detected from the additional information data from the display means for displaying the broadcasting station name and the additional information data extraction means, and the character code is converted into character data so that the display position corresponds to the address code. and a control means for converting the character code into a character code and sending it to the display means;
This is to display a space. More preferably, the control means includes a conversion means for converting character codes into character data, and sets the conversion means in advance so that character codes that cannot be displayed on the display means are displayed with spaces. More preferably, the control means includes display determination means for determining whether or not the character code can be displayed on the display means, and if the dim display determination means determines that the character code cannot be displayed, a space is displayed. It is something. More preferably, the n princess control means has a character type determination means for determining whether the character code is an uppercase letter or a lowercase letter, and converts the character code to either an uppercase letter or a lowercase letter based on the character type determination means. It is something. (e) Effect Since the present invention is configured as described above, when additional information data having broadcast station name data is multiplexed in a received broadcast signal, the reception frequency is changed for a predetermined period of time after reception. and then display the station name all at once. In this state, the reception frequency display and the broadcasting station name display can be switched arbitrarily by the display switching selection means. Further, character codes that cannot be displayed on the display means are displayed as spaces, and other character codes are displayed with the corresponding characters. Furthermore, all letters will be displayed in either uppercase or lowercase. (F) Embodiment An embodiment of the present invention will be described based on the drawings. WEl(2) indicates the format of one group of FIDS data with PS, and block lVc is P-ecoding, check word (nineth code for error detection and correction) + offset person (starting point of block and its Block 2 is assigned a group type code (indicating the group of RDS data messages). 8 (group type version) ), T p
(R number 1 of traffic information broadcasting station), PTY (program content identification code), TA (identification signal during traffic information broadcast), M/
8C (music or conversation identification code), DI (transmission status identification code), Ct, Co (address code of the character code of the broadcasting station name), test word + offline Frequency list of broadcasting stations currently transmitting programs) or PI code (BOKj: * differs),
A test word + offset) C is assigned, and a character code of two characters (16 bits) of the broadcasting station name, a test word + offset) D, is assigned to block 4. The character addresses displayed on the display increase from left to right, and represent the first and second characters from character code h and 2E when address code C1 and Go are 0°0, and the same goes for Cz. , when Co is 0,1, the 3.4th, Ct, Co
When it is 1,0, it represents the 5th and 6th, and when CI and Co are 1,10, it represents the 7.8th. Note that this IT DS data (transmission rate 1.1875 bits/sec) is differentially encoded, and the signal is 1.1875 bits/sec.
1875KHz glue cy7 2-phase PSKiill. Then, by this signal, subcarrier a (57KHz)
The signal is subjected to carrier suppression width modulation, and this double-side band signal is multiplexed with the audio signal and transmitted. FIG. 2 shows a block diagram of the RDS receiver of the present invention,
(1) is an antenna, (21 is an FM tuner circuit that inputs the signal of the antenna and outputs an FM demodulated signal, and the local oscillation circuit is composed of a PL synthesizer. (3)
is the output signal of the FMf-Yuna circuit 1 (21) as F(,
MPX circuit that separates into L signal, (4) is an amplifier that amplifies the output signal of the MPX circuit, +5J (61 is a speaker. The RDS decoder demodulates the modified iJ4 signal, regenerates the clock, and performs group synchronization and error correction of the demodulated RDS data. (8) is the display, which has an 8-digit Union Jack-shaped segment as shown in the third factor. It consists of a display, a character display (8A) consisting of a dot located after the fourth digit of this segment display, an RDS lamp (8B), and a PS lamp (8C). (9)
are the drive circuits that drive the display device (83'), αG to (
131 is a preset key, (141 is a display switching key, r
151 is the I10 baud for inputting the respective keys), (1
61flcPU-t', a program memory consisting of ROM [171Kl] controls each circuit according to the loaded program. αa is a data memory consisting of RAM,
Frequency data 1 corresponding to each of the preset keys αG to αJ and sent to the local excavation circuit of the FM tuner circuit (2): Storage area and character data (13 bits) in segments for 8 characters. CXJ is a font memory consisting of a ROM in which character data corresponding to the character code is written, and a Union Jack-shaped segment display. Data corresponding to spaces is written in advance in characters that cannot be displayed (for example, areas that can be specified by character codes). The fourth (2) prisoner (Hitoshi) shows a flowchart of the main part of the program written in the program memory an, and the operation will be explained based on this below. First, after inputting tyl, 0PU (161 is the flag register Initial set F to 0 and press preset key αG
The operating status of C131 to C131 is monitored. Here, if any preset key is operated, the frequency data corresponding to this preset key is displayed! MeshichisuαIlG!
5! ! Midete F M f Knee song 11 21F)
Local oscillation circuit and driver] Send to K2+ circuit (9), FM
Tuner circuit +2) is tuned to the frequency and the character display (8A) is made to display the frequency (in the case of frequency display, a dot is used as a decimal point) (steps s-1 to 3).Next, the FM If the tuner circuit (2) is tuned to the predetermined frequency, it is determined whether the receiving station is an RDS station or not.2)-1-
Judgment L (RD S 'f near -/ (7) t!
, 57 K H", it outputs a predetermined signal). If it is an RDS station, it outputs an RDS lamp lighting signal to the drive circuit (9) and lights the RDS lamp (8B) (step S-4, 5).If the receiving station is an RDS station, it decodes the group type code of the RDS data to determine whether or not this RDB data contains a PS. If so, the PS lamp lighting signal is output to the drive circuit (9), and the PS lamp (8G
), the timer is initially started, and the flag register F is set to L (steps S-6 to S-9). Next, each of the address code and character code is detected from one group of RDS data, and the character code is stored in the area of the next code memory α according to this address code (by storing the character code according to the address code) , the character codes will be stored in display order (code memory address order)) 1.
(, l step S-10). After all 8 character codes (including spaces) are stored in code memory 19, code memory a
The character codes are read out in address order from 9, and the character data corresponding to the character codes is read out from the font memory (2) and stored in the data memory α81C (step 5-11.12). 7 seconds in this state

[Step S-9~
12 processing time and sufficient time to recognize the reception wave number], the character data in the data memory αδ is sent to the drive circuit (9), and all characters are displayed simultaneously on the character display (8A). (Steps 5-13 and 14)
Here, as described above, if the broadcasting station name is 1P3JOnk#, it is displayed as IIP3Jnk#. Then, J
If there is a space between and 30, it can be recognized as a character that cannot be displayed, and from ordinary knowledge it can be easily guessed as "JoHk*. After displaying the broadcasting station name, if display switching key α4 is operated, the flag register Next, when F is 1, FMt
Read out the frequency data of the local oscillation circuit of the Yuna circuit (2), send it out to the drive circuit (9), display the frequency on the character display (8A), and set it in the flag register F60 (Stator 8.-15 to 18). ].When the display switching key 〇41 is operated again, the next time the flag register F is 1, the character data in the data memory a8 is sent to the driver m+ circuit (9), and the broadcasting station name is Display on the character display (8A) (Step S-1!1p16*19*2G) e
Furthermore, if any of the preset keys is operated again,
Returning to step S-3, the above-described operation is repeated (step S-21). The fifth part shows a flowchart of the main part of the program of the program memory of another embodiment, and corresponds to steps 5-10 to 12 on page 4 (AJ(B)).In this embodiment,
Do not write characters that cannot be displayed on the character display (8A), such as character data such as SO2, to the font memory ■.
Assume that one space data is written. This flow?
f-) K-based dynamic fi! To explain this, all 8 character codes are stored in the code memory (L) according to the address code.
9 (steps S-101, 102), the character code is read out from the code memory αl in the order of addresses, and whether or not the character of this character code can be displayed on the character display (8A) is checked using, for example, the display character code table. or the presence or absence of the upper bits of the code! By lpel etc. (
Special characters are located after the code table) #4J is cut off, and if it can be displayed, the character data corresponding to the character hood is read from the font memory ■, and if it cannot be displayed,
Read the space data from the 7ont memory ■ and store it in the data memory ttS (steps S-103 to 1).
07). Then, step S described above for all character codes.
-103 to 107 are repeated (step S-108). FIG. 6 shows a flowchart of the main part of the program for the 10-gram memory battle of another embodiment, and corresponds to steps 5-1o to 12 of FIG. 6(B) of M4. In addition, in this embodiment, as in the case of FIG. 5, in the font memo 9m, characters that cannot be displayed on the character display (8A) K, such as character data such as 10", are not written, but one space data I is written. , For English characters, only uppercase character data shall be written.Based on this flowchart, <a work will be explained.Character codes for 8 characters are all stored in the code memory tl!JK store according to one dress code. After that (steps S-201, 202), read character codes from code memory αI in % address order (step S-203)
, as described above, it is determined whether or not the characters of this character code can be displayed on the character display (8A).
204), display 205]. And the character code b8
If ~o6 is 1///01.1, change b610KR (step 5-20.6). According to this K, RDS
The display character code table for English characters is structured as shown in Figure 7. When b8 to b6 are ←+→central 011, if you change b6 to OK, you can change the character code from lowercase to uppercase. You can change the character code. In other words, it is possible to display the broadcast station name in uppercase letters rather than lowercase letters, and if all English letters are displayed in uppercase letters, there is no need for lowercase character gaters, which reduces the memory capacity of the font memory. This is due to the fact that it is small. After the BIA in step S-206, R is extracted from the character data "t7 ontome y" corresponding to the character code (step S-208), and step S-2
If it is determined that the display is not possible in step S-207, the space data is read from the font memory ■.
), store it in the data memory (step 3-209
). Thereafter, steps S-203 to S-209 described above are repeated for all character codes (step S-210).
. In the above configuration, the RDS decoder (7) serves as the additional information data extraction means, the code memory a3 and the data memory e serve as the storage means, and the 11 output circuit (9) and the display (81 serve as the display means). , CPU (1G, program memory CI?), font memory r:XJ

[Conversion means] and I10) Itcj corresponds to the control means, and the display switching key α41 corresponds to the display switching selection means EtIA. (G) Effects of the Invention The present invention, as described above, displays the broadcasting station name at once when additional information data having broadcasting station name data is multiplexed in the Confucian broadcasting borrowed name. It does not make you feel uncomfortable. Furthermore, after reception, at a predetermined time, rMJ displays the received frequency, then displays the name of the broadcasting station, and displays the frequency of the received station using fIA. Furthermore, the display switching selection means allows the user to arbitrarily switch between displaying the wave number of the receiving station and displaying the name of the broadcasting station, making it easy to use. Furthermore, i-character codes that cannot be displayed on one display means are displayed as spaces, and other character codes are displayed with their corresponding characters, and the broadcasting station name data that is displayed on the display means is Even when the user receives a broadcast station, the user can recognize that the broadcast station is displayed, and in many cases can easily guess the correct broadcast station name from the character arrangement. In addition, since all characters are displayed in either uppercase or lowercase, the amount of character data stored can be reduced.

[Brief explanation of the drawing]

Figure 1 i, f (displays the fuzomat of DS data, Figure 2 is a block diagram of the RDS borrowing machine of the present invention, Figure 3 is a front view of the display unit, #t4 Figure 40J FIG. 5 is a flowchart showing the main part of the program of another embodiment of the present invention. (2)...FMf knee circuit, (7)...RDS decoder, (8)...display device, (9)...drive circuit,
rle...CPU, C1η...program memory,
α...Data memory, (L9...Code memory, ■
... Font memory applicant Sanyo Electric Co., Ltd. 1 other representative Patent attorney Takashi Nishino h4 (1 other person) Figure 5 5-9f To 5-13 Figure 6 S-9 5-13, Figure 7 Procedural amendment (method) % formula % Display of the case 1986 Patent application No. 113748 Name of the invention Additional information Receiver amendment person Relationship with the case Patent applicant name (18B> Sanyo Electric Co., Ltd.

Claims (8)

[Claims] (1) The local oscillator circuit is configured with a PLL synthesizer, and the PLL synthesizer is varied to select a station, and each group includes a character code for a predetermined number of characters of the broadcasting station name and this character code. A receiver for receiving additional information data assigned an address code corresponding to the broadcast signal, additional information data extraction means for extracting additional information data from the broadcast signal, storage means, display means for displaying a broadcasting station name, a control means for detecting the character code and the address code from the additional information data from the additional information data extracting means, converting the character code into character data and sending it to the display means so that the display position corresponds to the address code; Additional information characterized in that the control means stores all character codes or character data of a broadcasting station name in the storage means according to the address code, and then sends the character data to the display means. Receiving machine. (2) The additional information receiver according to claim 1, wherein the control means sends frequency data to the local oscillation circuit and the display means. (3) The control means has a timer means for counting a time longer than the time for storing all the character codes or character data of the broadcasting station name in the storage means, and the control means includes a timer means for counting a time longer than the time for storing all the character codes or character data of the broadcasting station name in the storage means, When this is detected, the timer means is activated, and after the timer means has timed a predetermined period of time, the display is switched from displaying the received frequency to displaying the name of the broadcasting station. information receiver. (4) A display switching selection means is provided, and the control means controls switching between the received frequency display and the broadcasting station name display based on the display switching selection means. additional information receiver. (5) The local oscillator circuit is configured with a PLL synthesizer, and the frequency division ratio of this PLL synthesizer is varied to select a station, and the character code included in the broadcast signal and corresponding to a predetermined number of characters of the broadcast station name is included in each group. and a receiver for receiving additional information data to which an address code corresponding to the character code is assigned, additional information data extraction means for extracting additional information data from the broadcast signal, display means for displaying a broadcasting station name; a control means for detecting the character code and the address code from the additional information data from the additional information data extracting means, converting the character code into character data and sending it to the display means so that the display position corresponds to the address code; An additional information receiver, characterized in that the control means displays a space for character codes that cannot be displayed on the display means. (6) A patent characterized in that the control means has a conversion means for converting character codes into character data, and the conversion means is set in advance so that character codes that cannot be displayed on the display means are displayed with spaces. The additional information receiver according to claim 5. (7) The control means has a display determination means for determining whether or not the character code can be displayed on the display means, and if the display determination means determines that the character code cannot be displayed, a space is displayed. The additional information receiver according to claim 5, characterized in that: (8) The control means has a character type determination means for determining whether the character code is an uppercase letter or a lowercase letter, and converts the character code to either uppercase or lowercase based on the character type determination means. Characteristic Claim No. 5
Additional information receiver described in section.