JPH08256075A - Fm multiplex broadcasting receiving device - Google Patents

Abstract

PURPOSE: To display broadcasted FM multiplex received information in color. CONSTITUTION: The multiplex information received by an FM multiplex reception circuit is stored through a CPU 61 into a data memory 65. The character data stored here are converted to dot map data by a character generator 66 and stored in a display memory 68. In this case, the data are converted so that different colors can be provided when the binary information stored in the data memory 65 is pay information and when it is free information. The data stored in the display memory 68 are supplied through a display port 69 onto a liquid crystal color display panel and displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an FM multiplex broadcasting receiver, and more particularly to an FM multiplex broadcasting receiver capable of displaying information in color.

[0002]

2. Description of the Related Art In recent years, a service for multiplexing and broadcasting multiple information such as characters and other display information on an FM broadcast has become widespread. FIG. 23 shows the principle of such multiplexing of FM multiplex broadcasting.

That is, from the left (L) and right (R) audio signals, the sum signal ((L + R) signal) of the L and R signals (main channel signal) and the difference signal ((LR) signal). Is created. Each of these signals is limited to the frequency band of 15 kHz. The difference signal ((L-
(R) signal), a carrier having a frequency of 38 kHz is subjected to carrier suppression amplitude modulation to create a sub-channel signal. Then, by adding the main channel signal, the 19 kHz pilot signal, and the sub-channel signal,
A stereo composite signal is created.

On the other hand, the multiplexed signal has a frequency band of 53 kHz or more and 100 kHz or less at the base band frequency,
The sub-carrier frequency of 76 kHz, which is four times the frequency of the pilot signal, is set to L-MSK (Level control).
red Minimum Shift Keying)
It is modulated and frequency-multiplexed into a stereo composite signal. Therefore, in the end, the carrier wave of a predetermined frequency is frequency-modulated by the signal obtained by adding the main channel signal, the pilot signal, the sub-channel signal and the sub-carrier frequency signal (multiplexed signal) to be an FM broadcast wave.

By the way, a difference signal (L-
When the modulation degree of the R signal) is large, the interference with the multiplexed signal becomes large. On the contrary, the interfering noise on the voice signal is easily detected when the modulation of the voice signal is small. Therefore, as shown in FIG. 24, the multiplex signal is L-MSK modulated, and the modulation factor of the multiplex signal corresponds to the modulation factor of the L-R signal, and its magnitude (multiplexing level) is 4% to 10%. Is changed up to.

The transmission capacity of the multiplexed signal is 16 kbp.
s, 6.83 kbps of which is used as a data area, and the remaining 9.17 kbps is used for error correction.

To correct this error, as shown in FIG.
A product code ((2
72, 190) shortened difference set cyclic code).

[0008]

By the way, information such as characters and figures broadcast by FM multiplex broadcasting has been proposed in a color display format as a higher-level transmission format. Is described as monochrome information. It is considered that the receiving device for receiving the FM multiplex broadcast is integrated with, for example, a portable pocket radio, a portable television receiver, an electronic notebook device, a radio cassette device, or the like. For example, considering that this receiving device is integrated with a portable color liquid crystal television receiver, the receiving device (receiver) itself has a color display function, but the received information is a monochrome image. It will be displayed. This means that you have not fully utilized the special features.

The present invention has been made in view of the above circumstances, and is intended to make it possible to display broadcast FM multiplex information in color, thereby increasing the added value of the apparatus. is there.

[0010]

An FM multiplex broadcast receiving apparatus according to claim 1 comprises a receiving means for receiving information broadcast by FM multiplex broadcasting, a color display means for displaying in color, and a receiving means. Setting the display color by the discrimination means for discriminating the type of information received and the discrimination result of the discrimination means,
A display control unit for performing a display operation on the color display unit with the set display color.

The type of information discriminated by the discriminating means is
It can be the genre of information.

An FM multiplex broadcasting receiving apparatus according to a third aspect of the present invention includes a receiving means for selectively receiving information broadcast by FM multiplex broadcasting from a plurality of broadcasting stations, a color display means for displaying in color, and a receiving means. Display control means for setting a color corresponding to the broadcasting station of the information received by the means, and performing a display operation on the color display means with the set color.

According to another aspect of the present invention, there is provided an FM multiplex broadcast receiving apparatus, which is independent of receiving means for receiving information broadcast by FM multiplex broadcast, and complementary information or programs for which the information received by the receiving means complements a program. Discrimination means for discriminating which is independent information, color display means for displaying in color, color corresponding to the discrimination result of the discrimination means is set, and display for performing display operation for the color display means with the set color And a control means.

An FM multiplex broadcasting receiver according to a fifth aspect of the invention determines a receiving means for receiving information broadcast by FM multiplex broadcasting and whether the information received by the receiving means is free information or pay information. And a display control unit that sets a color corresponding to a determination result of the determination unit and performs a display operation on the color display unit with the set color. To do.

According to another aspect of the present invention, there is provided an FM multiplex broadcast receiving apparatus, which includes receiving means for receiving information that does not include color information broadcast by FM multiplex broadcasting, color display means for displaying in color, and receiving by the receiving means. A predetermined color is set for the information that has been set, and a display control unit that performs a display operation on the color display unit with the set color is provided.

An FM multiplex broadcast receiving apparatus according to a seventh aspect of the present invention includes a receiving means for receiving information sequentially broadcast by the FM multiplex broadcast, a color display means for displaying in color, and information sequentially received by the receiving means. And a display control unit that sets a color corresponding to the detection result of the detection unit and performs a display operation on the color display unit with the set color.

An FM multiplex broadcast receiving apparatus according to claim 8 is a receiving means for receiving information broadcast by FM multiplex broadcasting, an input means for inputting information such as a telephone number by a manual operation, and a receiving means for receiving. Storage means for storing the input information and the information input by the input means, a determination means for determining the information received by the receiving means and the information input by the input means, and a color display means for displaying in color. And a display control unit that sets a color corresponding to a determination result of the determination unit and performs a display operation on the color display unit with the set color.

An FM multiplex broadcasting receiver according to a ninth aspect of the invention is capable of receiving receiving means for receiving pay information broadcast by FM multiplex broadcasting, color display means for displaying in color, and receiving pay information. Storage means for storing data that determines a valid period, a determination means for determining the valid period of the data stored in the storage means, a color corresponding to the determination result of the determination means, and a color display means with the set color. And a display control means for performing a display operation for.

According to a tenth aspect of the present invention, there is provided an FM multiplex broadcast receiving apparatus which comprises a first color signal generating means for A / D converting a color video signal to generate a digital color signal, and information to be broadcast in the FM multiplex broadcast. The receiving means for receiving, the second color signal generating means for generating a digital color signal from the information received by the receiving means, the digital color signal generated by the first color signal generating means and the second color signal generating means. Selective output means for selectively outputting one of the generated digital color signals for color display.

An FM multiplex broadcast receiving apparatus according to claim 11 includes a receiving means for receiving information broadcast by the FM multiplex broadcast, a color code obtaining means for obtaining a color code from the information received by the receiving means, and a color code. Color code conversion means for converting the color code acquired by the code acquisition means into another color code, color display means for displaying in color, and color display means with a color set by the color code converted by the color code conversion means. And a display control means for performing a display operation for.

A television broadcast receiving means for receiving the television broadcast may be further provided, and the color display means may display an image corresponding to the television signal received by the television broadcast receiving means in color.

[0022]

In the FM multiplex broadcast receiving apparatus according to the first aspect, the type of information broadcast by the FM multiplex broadcast is discriminated and the color is set corresponding to the type.

In the FM multiplex broadcast receiving apparatus according to the second aspect, the genre of the information broadcast by the FM multiplex information broadcast is discriminated and the color is set corresponding to the genre.

In the FM multiplex broadcast receiving apparatus according to the third aspect, a predetermined color is set for each broadcasting station that broadcasts the FM multiplex broadcast.

In the FM multiplex broadcast receiving apparatus according to the fourth aspect, the color is set depending on whether the received information of the FM multiplex broadcast is complementary information or independent information.

In the FM multiplex broadcast receiving apparatus according to the fifth aspect, the colors corresponding to the free information and the pay information are set.

In the FM multiplex broadcast receiving apparatus according to the sixth aspect, the color is set in the information broadcast by the FM multiplex broadcast.

In the FM multiplex broadcast receiver according to the seventh aspect, the color is set depending on whether or not the information is updated.

In the FM multiplex broadcast receiving apparatus according to the eighth aspect, the color corresponding to the information input by the input means and the information received by the receiving means is set.

In the FM multiplex broadcasting receiver according to the ninth aspect, the color is set in correspondence with the valid period during which the pay information can be received.

In the FM multiplex broadcasting receiver according to the tenth aspect, the original digital color signal and the signal obtained by converting the information received in the FM multiplex broadcasting into the color signal are selectively output.

In the FM multiplex broadcast receiving apparatus according to the eleventh aspect, the acquired color code is converted into another color code.

In the FM multiplex broadcast receiving apparatus according to the twelfth aspect, the television broadcast received by the television broadcast receiving means is displayed by the color display means.

[0034]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of the configuration of an FM multiplex broadcasting device. In this embodiment, the L audio signal and the R audio signal are input to the stereo modulator 101, where the L + R signal and the L-R signal are generated.

The encoder 108 encodes program information as shown in FIG. 2, for example. As shown in FIG. 2, a maximum of 256 pieces of this program information can be provided in each broadcasting station, and each program is composed of a maximum of 64 pages. And, 30 characters can be arranged on each page. The transmission rate is about 823 pages per minute.

As the program information, complementary information such as music titles, singer names, lyrics, request telephone numbers of broadcasting music, and the like, FM radio broadcasting which is the main broadcasting, weather forecast, traffic information, etc. As described above, there is independent information independent of FM radio broadcasting. Further, these program information includes pay information and free information. Further, in these program information, an ID indicating the genre of the information, a flag (I indicating whether the information is complementary information or independent information)
D), a flag (ID) indicating whether it is free information or pay information, and the like are also included.

The program information is, for example, 10
It is encoded and transmitted once per second or once per hour. Alternatively, the same data is repeatedly transmitted many times, or is updated with new data once a hour, for example. When updating, the update flag may be transmitted at the same time.

The error correction adding device 109 is the encoding device 10.
As described with reference to FIG. 25, the error correction code using the product code is added to the digital data input from the No. 8, and the digital data is supplied to the L-MSK modulator 110. The L-MSK modulator 110 is also supplied with L and R signals. The L-MSK modulator 110 supplies to the stereo modulator 101 the multiplex information that has been subjected to the L-MSK modulation processing according to the characteristics of FIG. 24 described above.

The stereo modulator 101 includes a main channel signal composed of L + R signals, a pilot signal having a frequency of 19 kHz, a sub-channel signal in which a carrier of 38 kHz is amplitude-modulated with a carrier of LR signals, and LM.
The multiplexed signals supplied from the SK modulator 110 are added, and F
Output to the M modulator 102. The FM modulator 102 FM-modulates a predetermined carrier wave with the input signal, and the transmitter 103
Output to. The transmitter 103 power-amplifies the input signal and outputs it as a radio wave from the antenna 104.

As a result, the main audio signal such as music and the multiplex information including characters are multiplexed and FM broadcast.

FIG. 3 shows an external configuration example of an FM multiplex broadcast receiving apparatus which is integrated with a portable color liquid crystal television receiver for receiving the signal broadcast by the apparatus shown in FIG. The FM multiplex broadcast receiving apparatus 11 is basically an electronic notebook type, and is composed of a cover section 12 and a main body section 13, both of which are foldably connected by a folding section 14.

The cover 12 is provided with keys for inputting hiragana, converting the entered hiragana into kanji, and keys 15 for inputting numbers, alphabets and the like.

A color liquid crystal display panel 16 is provided above the main body portion 13, and color characters, figures, and
It is designed to be able to display images.
Up key 17a and down key 17b are FM
It is operated at the time of reception or when raising or lowering the broadcast channel at the time of receiving a television broadcast. A mode switch 18 is provided on the lower left side of the color liquid crystal display panel 16. The mode switch 18 is sequentially slid when the FM multiplex broadcast receiver 11 is set to the FM reception mode (FM), the television reception mode (TV), or the electronic notebook mode (notebook). It When this device is not used, it is switched to the leftmost OFF position (OFF).

A speaker 19 is arranged below the keys 17a and 17b and the mode switch 18 so that sound is emitted.

An insertion opening 20 for inserting the IC card 21 is provided on the lower side surface of the main body 13. The IC card 21 stores reception information, electronic notebook information, ID code for receiving pay broadcasting, prepaid billing information for receiving pay broadcasting, and the like.

FIG. 4 is an F-type integrated with the liquid crystal television shown in FIG.
3 illustrates an example of the internal configuration of the M-multiplex broadcast receiving device 11.
The TV tuner 32 demodulates the signal of the television broadcast from the signal received by the antenna 31, and outputs the demodulated signal to the television linear circuit 33. The television linear circuit 33 demodulates the video signal from the signal supplied from the TV tuner 32 to obtain R, G, B color signals,
The intermediate frequency signal IF is output to the control circuit 34. Also,
The audio signal is demodulated and output to the audio circuit 36. The audio circuit 36 processes the input audio signal and outputs the sound from the speaker 19.

The television linear circuit 33 also separates the video signal from the input signal and outputs it to the sync separation circuit 35. The sync separation circuit 35 separates the vertical sync signal φ _V and the horizontal sync signal φ _H from the input video signal, and outputs it to the control circuit 34.

The FM multiplex reception circuit 37 receives the FM multiplex broadcast signal from the signal received by the antenna 31, and outputs the received signal to the control circuit 34. More detailed configurations of the FM multiplex reception circuit 37 and the control circuit 34 will be described later with reference to FIGS. 5 and 6.

The key input section 38 is the key 1 shown in FIG.
5, an up key 17a, a down key 17b, a mode switch 18, and the like. A signal generated by manually operating the key input unit 38 is supplied to the control circuit 34.

The color liquid crystal display panel 16 is, for example, 24
It is composed of 0 × 640 pixels, and has scan electrodes X _{1 to} X ₂₄₀ arranged in the vertical direction and signal electrodes Y _{1 to} Y ₆₄₀ arranged in the horizontal direction. Since the 640 signal electrodes Y _{1 to} Y ₆₄₀ are for R, G, and B, respectively, the number of pixels in the horizontal direction is about 21.
The number is three (≈640 / 3).

The control circuit 34 generates various clocks required for driving the liquid crystal, based on the vertical synchronizing signal φ _V and the horizontal synchronizing signal φ _H input from the synchronizing separation circuit 35. The shift register 42 generates scan pulses while shifting the shift data SR supplied from the control circuit 34 in synchronization with the shift clock φ _n . The scan pulse is converted to a scanning voltage for the liquid crystal driving by the driver 43, it is supplied to the scan electrodes X ₁ to X _{2 40.}

Each display data of R, G and B is 4
Shift lock φ composed of bit data D _{1 to} D ₄
It is serially input to the shift register 39 in synchronization with ₁ and φ ₂ . When the data for one line is accumulated, the shift register 39 transfers the data for one line to the latch circuit 40 in parallel. The latch circuit 40 latches this data in synchronization with the shift clock φ _n .
The driver 41 generates a signal voltage of a predetermined length based on the data latched by the latch circuit 40 and supplies it to the signal electrodes Y _{1 to} Y ₆₄₀ .

The control circuit 34 supplies a gradation clock φ _C, which is a reference for creating a gradation signal corresponding to display data, to the driver 41 and, at the same time, drives the liquid crystal of the color liquid crystal display panel 16 by alternating current. The driver 41 outputs an inversion signal φ _F for inverting the liquid crystal drive voltage every predetermined period.
And 43.

Further, the power supply circuit 44 supplies necessary power supply voltage to each unit, and multi-value voltage for driving liquid crystal in the color liquid crystal display panel 16 (for example, V _HX , V which will be described later with reference to FIG. 8). _LX , V _HY , V _LY ) driver 41
And 43.

FIG. 5 shows a configuration example of the FM multiplex reception circuit 37. The FM tuner 51 receives the signal of the broadcasting station corresponding to the command from the tuning control circuit 52 from the signal received by the antenna 31, converts it into a predetermined intermediate frequency signal, and outputs it to the FM demodulator 53. The FM demodulator 53 demodulates the input intermediate frequency signal and outputs the demodulated signal to the L-MSK demodulator 54. The L-MSK demodulator 54 receives the signal input from the FM demodulator 53 as LM
It demodulates SK and outputs to the error correction decoder 55. The error correction decoder 55 corrects the error of the input signal and then outputs it to the control circuit 34.

FIG. 6 shows a configuration example of the control circuit 34. The CPU 61 executes various types of processing according to the programs stored in the ROM 64. The timing generation circuit 62 synchronizes with the vertical synchronization signal φ _V and the horizontal synchronization signal φ _H supplied from the synchronization separation circuit 35, and various timing signals SR, φ _n , φ _C , φ ₁ , φ ₂ , φ _F. Is generated and output to each circuit.

The television control circuit 63 performs so-called AFT operation, determines the broadcast channel currently being received by the TV tuner 32 from the intermediate frequency signal IF supplied from the television linear circuit 33, and outputs the command from the CPU 61. Correspondingly, the T
A tuning voltage V _T for selecting a broadcasting station is supplied to the V tuner 32.

Further, the data memory 65 is received by the FM multiplex reception circuit 37, and under the control of the CPU 61, the bus line B.
The received data input via L1 is stored, and the character data input by operating the key input unit 38 is also stored. When the same program information is received, the CPU 61 updates the old information with the new information and always stores the latest program information in the data memory 65. The work memory 67 stores various data under the control of the CPU 61. The character generator 66 converts the character code sent by the character multiplex broadcasting into a dot pattern for display.

The display memory 68 is divided into R, G and B areas and stores a dot pattern corresponding to an image displayed on the color liquid crystal display panel 16. That is, the data read from the data memory 65 or the data read from the character generator 66 is expanded and stored in the display memory 68.

The display color on the color liquid crystal display panel 16 is determined by which region of R, G, B of the display memory 68 the data is written. For example, R, G, B
Data is '1111', '1111',
If it is '1111', it becomes white, and '1111', '00
If it is 00 'or' 0000 ', it becomes red and becomes' 000
If it is 0 ',' 1111 ', or' 1111 ', it becomes yellow. When R, G, and B are each represented by 1 bit,
The number of colors that can be displayed on the color liquid crystal display panel 16 is eight, but in this embodiment, R, G, and B are each represented by 4 bits, so 4096 colors (= 2 ⁴ × 2 ^4).
× 2 ⁴ ) can be displayed.

On the other hand, the A / D converter 70 has R, G, B
A / D conversion is performed on each of the data to generate a digital color signal. The display port 69 is a digital color signal of R, G, B output from the display memory 68, or A /
Either one of the R, G, and B digital color signals output from the D converter 70 is selected or combined and transferred to the shift register 39. This allows TV tuner 3
The image corresponding to the television signal received in 2 or the information stored in the data memory 65, that is, the FM multiplex information received by the FM multiplex reception circuit 37 or the character information input from the key input unit 38 is the color liquid crystal display panel. 1
6 will be displayed in color.

Next, the operation of the FM multiplex broadcast receiver 11 will be described. When the mode switch 18 is set to the TV mode (television mode), the CPU 61 outputs an up / down signal to the television control circuit 63 in response to a command from the up key 17a or the down key 17b. The television control circuit 63 outputs the control voltage V _T corresponding to the up / down signal to the TV tuner 32.
The TV tuner 32 receives the television signal of the broadcasting station corresponding to this control voltage V _T.

The TV linear circuit 33 includes the TV tuner 3
2 demodulates the intermediate frequency signal supplied from R, G, B
The color signal and the audio signal of are output. The audio signal is supplied to the audio circuit 36, processed, and then emitted from the speaker 19.

On the other hand, the R, G and B color signals are A / D
It is input to the converter 70, A / D converted, converted into a digital color signal, and then transferred to the shift register 39 via the display port 69. The serial digital color signal transferred to the shift register 39 is transferred to the latch circuit 40 when one line is prepared, and this latch circuit 4
The digital color signal for one line stored in 0 is converted into a signal voltage of a predetermined length by the driver 41,
It is applied to the signal electrodes Y _{1 to} Y ₆₄₀ .

The timing generation circuit 62 of the control circuit 34 generates shift data SR and transfers it to the shift register 42 in synchronization with the shift clock φ _n . The driver 43 drives one of the scan electrodes X ₁ to X _{2 40} corresponding to the data held in the shift register 42. As a result, pixels on one scanning line designated by the scanning electrodes are displayed.

By performing the above processing for each scanning line, an image corresponding to the television broadcast received by the TV tuner 32 is displayed in color on the color liquid crystal display panel 16.

The driving principle of the color liquid crystal display panel 16 will be described in more detail with reference to FIG. When the 4-bit data of the signal electrode Y ₁ supplied from the latch circuit 40 is '1111', the driver 41, for example, during the period of counting 15 gradation clocks φ _C (approximately 1 horizontal scanning period). Low level signal (V
_{L Y} ) is output. At this time, for example, if the first horizontal scanning line is being scanned, a high level voltage (V _HX ) is applied to the scanning electrode X ₁ . Therefore, the first pixel (pixel defined by the scan electrode X ₁ and the signal electrode Y ₁ ) on the first line is the brightest, for example, red (if this pixel is a pixel displaying red). Is displayed.

When the 4-bit data of red (R) latched by the latch circuit 40 is, for example, “0111”, the driver 41 has the signal electrode Y for the period for counting seven gradation clocks φ _C. The potential of ₁ is low level (V _LY ).

The 4-bit data of the signal electrode Y ₁ is "00".
In the case of 00 ′, the driver 41 keeps the potential of the signal electrode Y ₁ at the high level (V _HY ).

As described above, the driver 41 controls the low level period of the signal electrode Y ₁ in correspondence with 4-bit data. At this time, since the high-level (V _HX ) potential is applied to the scan electrode X ₁ , the liquid crystal of the corresponding pixel has a potential difference of V _HX -V _LY for a period corresponding to 4-bit data. The liquid crystal controls the R light while being applied.

In this way, by controlling the lighting period (light transmitting period) of the liquid crystal corresponding to the 4-bit data, the R gradation can be one of 16 gradations represented by 4 bits. It is set to that gradation.

For convenience of explanation, 16 gradation clocks φ _C are generated in the period of 1H, but the number is only an example, and it goes without saying that the number can be increased or decreased. is there.

The above operation is performed by the signal electrode Y ₂ for G.
The signal electrode Y ₃ for B and B is also processed corresponding to the corresponding 4-bit data, and the three R, G, and B pixels substantially display the color of one point of the image in a composite display. To be done.

Then, the same operation is performed for each pixel for one line, and the pixels for one line are displayed.

When display of pixels for one line is completed,
The potential of the next scan electrode X ₂ is set to the high level V _HX, and the display corresponding to each pixel on the second scan line is similarly performed.

As described above, when the image for one frame is displayed on the color liquid crystal display panel 16, the logic of the inversion signal φ _F is inverted. When the logic of the inversion signal φ _F is inverted, the driver 41 that drives the signal electrodes Y _{1 to} Y ₆₄₀ and the driver 43 that drives the scan electrodes X _{1 to} X ₂₄₀
The polarity of the potential applied to each electrode is reversed.

That is, as shown in FIG.
1 applies V _HX as a high level voltage to the signal electrodes Y _{1 to} Y ₆₄₀ in the _first frame, the low level voltage V _LX (= −) in the next frame.
V _HX ) is applied. Similarly, in the driver 43,
If V _LY is applied as a low level voltage to the scan electrodes X _{1 to} X ₂₄₀ in the first frame, _VLH (= −V _LY ) is applied in the next frame.

In this way, the absolute value of the potential difference applied to both electrodes of the liquid crystal is the same value, but the polarity is inverted every frame. As described above, when the liquid crystal is AC-driven, it is possible to suppress the secular change of the liquid crystal and use the liquid crystal for a longer period.

Next, the operation when the mode switch 18 is set to the FM mode will be described with reference to the flowchart of FIG. First, in step S1, the user operates the up key 17a or the down key 17b to instruct an operation to up or down the channel of the receiving broadcast station (or, for example, the data memory 65 or the IC card 21 is called a last). Remember the channel, read it, and command reception on that channel).

When the CPU 61 receives this channel selection signal, it outputs a control signal to the tuning control circuit 52 of the FM multiplex reception circuit 37 via the bus line BL1 and the FM tuner 51 outputs the control signal of the broadcasting station corresponding to the command. Receive radio waves. The FM demodulator 53 outputs F in step S3.
The intermediate frequency signal output from the M tuner 51 is FM demodulated and output to the L-MSK demodulator 54. The L-MSK demodulator 54 uses the signal input from the FM demodulator 53 as LM
It demodulates SK and outputs to the error correction decoder 55. The error correction decoder 55 corrects the error of the input signal and then outputs it to the CPU 61 of the control circuit 34 via the bus line BL1. Upon receiving the supply of the multiplex information from the FM multiplex signal receiving circuit 37, the CPU 61 transfers and stores the received data in the data memory 65 in step S4.

Next, in step S5, data analysis,
And the color setting process is executed. Details of this data analysis and color setting processing are shown in FIG.

That is, the CPU 61 causes the step S11.
In S15 to S15, a free / paid determination process, a data update determination process, a genre determination process, a broadcast station determination process, or an information type determination process are executed. Although the details of these processes will be described later, by these processes, the colors of the free multiplex information and the pay multiplex information are set so that they are displayed in different colors. Further, the color is set so that the updated data and the non-updated data are displayed in different colors. Hereinafter, similarly, the color setting processing is performed so that the multiplexed information is displayed in different colors for each genre, broadcasting station, or information type.

The steps S11 to S15 do not necessarily have to be performed in this order, and at least one of the steps may be performed.

After such data analysis and color setting processing are performed in step S5 of FIG. 9, the process proceeds to step S6, and color display is performed in the color set in step S5. That is, as described above, the multiplexing information received by the FM multiplex receiving circuit 37 is stored in the data memory 65.
Is stored. If the data stored in the data memory 65 is character data, the character generator 66
After being converted to dot pattern data with, the display memory 6
8 and stored. Further, in the case of graphic data or the like, it is transferred and stored in the display memory 68 as it is.

When data is stored and transferred to the display memory 68, writing is performed corresponding to the set color. For example, the R, G, B data for displaying in red is
The data is converted into data “1111”, “0000”, and “0000” and stored in the display memory 68.

Then, the data stored in the display memory 68 is read, transferred to the shift register 39 via the display port 69, and stored therein. Hereinafter, similar to the case of displaying an image of a television broadcast, the multiplexed information received by the FM multiplex broadcast is displayed on the color liquid crystal display panel 16.
Color images are displayed on the color liquid crystal display panel 16.

Next, in step S7, it is determined whether or not any key has been operated. If not, the process returns to step S3 to repeat the subsequent processing. That is, the process of receiving the FM multiplex information and displaying it in color is repeatedly executed.

If it is determined in step S7 that any key has been operated, the process proceeds to step S8, and the process corresponding to that key is executed.

Next, steps S11 to S15 in FIG.
Details of the free / paid determination process, the data update determination process, the genre determination process, the broadcast station determination process, and the information type determination process shown in FIG. 11 will be described with reference to the flowcharts of FIGS. 11 to 15.

In the free / paid discrimination processing of FIG. 11,
First, in step S21, it is determined whether the information is free information. As described above, since the flag (ID) is transmitted, it can be determined whether the received multiplex information is free information or pay information. If the information is free information, the information can be freely used, and thus the process proceeds to step S22, and a process of setting a predetermined color for the free information is executed. For example, the color of the free information is set to be displayed in black (the information is written in the display memory 68 so as to be displayed in black).

If it is determined in step S21 that the information is not free information (paid information), the process proceeds to step S23 and the ID determination process is executed. When the user pays the fee in advance, the ID code is stored in the purchased IC card 21. CP
U61 accesses the IC card 21 and reads this ID code. When the ID code for using pay information is stored in the IC card 21,
In step S24, the color of the pay information is set to a predetermined color (a color different from the free information) (for example, blue).

In this way, the free information and the pay information are written in the display memory 68 so that they are displayed in different colors. As a result, in step S6 of FIG.
The free information read from the display memory 68 is displayed in black on the color liquid crystal display panel 16, and the pay information is displayed in blue.

On the other hand, if it is determined in step S23 that the ID code could not be read, the process returns to step S3 in FIG. 9 and the subsequent processes are repeated. That is, in this case, the processing of steps S5 to S6 of FIG.
As a result, the received information is substantially not displayed.

FIG. 12 shows details of the data update determination processing. In this process, first, step S31.
In, the comparison processing of the data received this time and the data received last time is performed based on the update ID. Then, when it is determined in step S32 that the two match, that is, when the data is not updated,
Proceeding to step S33, for example, black color setting processing is performed.

On the other hand, for example, if it is determined in step S32 that the data received this time and the data received last time do not match, it means that new data has been received, so that the data is old. Since the data is updated, in this case, the process proceeds to step S34, and a color different from that in step S33, for example, red is set.

As a result, the data that has not been updated is displayed in black, and the updated data is displayed in red.

The comparison processing in steps S31 and S32 is performed for the same page of the same program. If the data memory 65 has a large capacity, all program information can be stored therein, but if the memory capacity is not sufficient, only one program information may be stored.

FIG. 13 shows the genre discrimination processing. In this process, the genre of the program information stored in the data memory 65 is determined in step S41. Which genre it belongs to can be determined from the ID (identification code) attached to the information. In addition,
The genre here refers to genres such as sports, music, news, weather forecast, and traffic information. When it is determined from the identification code which genre the information belongs to, step S
The process proceeds to any of 42 to S45, and the process of setting the color corresponding to the genre is executed.

As a result, with different colors for each genre,
Each program information will be displayed.

FIG. 14 shows details of the broadcast station discrimination processing. In this process, first, in step S51, a broadcast station discrimination process is executed. This broadcasting station discrimination processing can be discriminated from the identification code corresponding to each broadcasting station or from the received frequency. Then, the process proceeds to step S52, and a process of setting a color according to the broadcasting station is executed.

In this way, each program information is displayed in a different color for each broadcasting station.

FIG. 15 shows the details of the information type discrimination processing. In this process, first, in step S61, it is determined whether the information is complementary information or independent information. This determination can also be made from the flag (identification code). When it is determined that the information is complementary information, the process proceeds to step S62, the color setting process corresponding to the complementary information is performed, and when it is determined that the information is independent information,
In step S63, color setting processing corresponding to the independent information is performed.

In this way, the complementary information and the independent information are displayed in different colors.

Further, for example, when the information to be received is charged, a period during which the information can be received (a period during which the information can be received), that is, an effective period is defined, and the color of You can also set it. In this case, for example, the IC card 21 is configured as shown in FIG.

The connector 100 is inserted into the insertion port 20 of the FM multiplex broadcast receiver 11 of FIG. EEPROM 10
1 stores data of a valid period in which pay data can be received. When the user purchases this IC card 21, the validity period stored in it (for example, 6 months)
During that time, paid information can be received. The valid period is a period based on a so-called date (for example, like a commuter pass for a train) or a total time of use. This validity period data is encrypted to prevent alteration, and the CPU 102 decrypts this encryption as necessary.

FIG. 17 shows a processing example of setting a color according to the effective period, which is another processing example in step S5 of the data analysis and color setting processing of FIG. First, in step S91, it is determined whether or not the period is valid. That is, the CPU 61 of the control circuit 34 controls the CP of the IC card 21.
The U102 is requested to read the valid period data. C
In accordance with this request, the PU 102 reads out the valid period data stored in the EEPROM 101, decodes it, and C
It is sent to the PU 61. The CPU 61 compares this valid period data with the current time (or the total usage time up to that point) measured by the built-in timer. If the valid period has expired, the CPU 61 proceeds to another step and performs a process necessary to disable reception of pay information.

If it is determined in step S91 that it is within the valid period, the process proceeds to step S92, and it is determined whether the expiration date is within one day. When the expiration date is within one day, the process proceeds to step S93, and color setting processing is performed so that the pay information is displayed in, for example, red (third display color).
When the expiration date is longer than one day, the process proceeds to step S94, and it is determined whether the expiration date is within one week. When the expiration date is within one week, the process proceeds to step S95, and the color setting processing is performed so that the pay information is displayed in, for example, yellow (second display color). If the remaining time is longer than one week before the expiration, the process proceeds to step S96, and color setting processing is performed so that the pay information is displayed in, for example, green (first display color).

In this way, the pay information can be displayed in different colors corresponding to the time until expiration, and the user can be alerted to purchase a new IC card 21. .

Next, the processing when the mode switch 18 is set to the notebook mode will be described with reference to the flowchart of FIG. In this case, first, in step S71, the process waits until any key is input, and when a key is input, the data input process is performed in step S72 and the search process is performed in step S73 in correspondence with the input key. Editing processing is performed in step S74. When any other key is operated, other processing is performed.

In the data input process in step S72, for example, when an address book or the like is input by operating the key 15, the data is written in the data memory 65 and further transferred to the IC card 21 at a predetermined timing and stored. To be done.

In each process such as the data input process, search process, and edit process, the data memory 65
If the reading of the data stored in
The process shown in the flowchart of 9 is performed.

That is, first, in step S81, a process of reading data from the data memory 65 is executed, and in step S82, the type of read data is determined. If the read data is the data input in the electronic notebook mode, step S83
Then, the process for setting the color corresponding to the data input in the electronic notebook mode is performed. On the other hand, step S
If it is determined at 82 that the received data is the data received by the FM multiplex reception circuit 37, the process proceeds to step S84, and the color setting process corresponding to the data is performed.

After the different color setting processing is performed in steps S83 and S84, the process proceeds to step S85.
Color display processing is executed.

That is, in this manner, the information input in the electronic notebook mode and the information received by the FM multiplex reception circuit 37 are of different colors, and the color liquid crystal display panel 1 is used.
6 is displayed.

After the reception data is edited by the FM multiplex reception, the type of the data input in the electronic notebook may be changed or may not be changed. The data can be distinguished by setting a flag and identifying it by dividing an area to be stored in the data memory 65.

FIG. 20 shows another configuration example (only part of which is shown) of the control circuit 34. In this embodiment, the data read from the data memory 65 is
The data is supplied to the palette circuit 81, converted into R, G, and B color data there, and then the converted data is supplied to the display memory 68.

When the multiplex information broadcast by the FM multiplex broadcast is represented by, for example, 4-bit data, it is possible to display an image of 16 gradations even in monochrome display. Alternatively, when a color is designated by the 4-bit display data, 16 kinds of colors can be designated. In any case, the number of types that can be expressed is limited to 16.

However, in this embodiment, the palette circuit 82 uses the 409 types of the 16 types of display data.
A process of converting into 16 predetermined color codes of 6 colors is performed.

That is, as shown in FIG. 21, the palette circuit 81 stores color map data of 4096 colors in which R, G and B are each represented by 4 bits. When 4-bit display data is supplied from the data memory 65, the palette circuit 81, under the control of the CPU 61, changes the 4-bit display data to a predetermined 16 of 4096 colors.
Performs processing to convert to color data.

For example, 4-bit display data "0000"
, R of '0000', '0000', '0000',
If converted into G and B data, the pixels of the display data are
Displayed in black.

Also, for example, 4-bit display data '00
01 'to' 1111 ',' 0000 ',' 0000 '
If converted into R, G, and B data, the pixel corresponding to the display data is displayed in dark red. Furthermore, this 4
The bit display data '0001' is set to '1111',
If converted to R, G, and B data of '1111' and '1111', the pixel will be displayed in white.

As described above, it is possible to display an image with the 4-bit display data generated upon reception by using the monochrome gradation intended by the broadcasting station or a color different from the intended color.

As described above, the display color is set depending on whether it is pay data, whether it is updated data, or whether it is within the valid period, by genre, by broadcasting station. Alternatively, it can be performed for each information type.

Although the characters themselves are displayed in a predetermined color in the above embodiment, the background color may be changed without changing the character color, or, as shown in FIG. 22, You may make it change the color of the color mark of a predetermined position.

In the above embodiments, the case where the FM multiplex broadcast receiver is integrated with the color liquid crystal television receiver has been described as an example, but the present invention is not limited to this, and the image is displayed in color by another device. It is possible to adapt to a device capable of doing so.

Furthermore, in the above embodiment, the simple matrix type liquid crystal display panel was used as the color display means, but it goes without saying that it may be a TFT type liquid crystal display panel.

Further, the present invention can be applied to a service information receiving device other than the FM multiplex broadcasting receiving device, a pager and the like.

[0128]

According to the FM multiplex broadcast receiving apparatus of the first aspect, the type of information broadcast in the FM multiplex broadcast is discriminated, and the color is set corresponding to the type.

According to the FM multiplex broadcast receiving apparatus of the second aspect, the genre of the information broadcast by the FM multiplex information broadcast is discriminated and the color is set corresponding to the genre.

According to the FM multiplex broadcast receiving apparatus of the third aspect, a predetermined color is set for each broadcasting station that broadcasts the FM multiplex broadcast.

According to the FM multiplex broadcast receiving apparatus of the fourth aspect, the color is set depending on whether the received information of the FM multiplex broadcast is complementary information or independent information.

According to the FM multiplex broadcast receiving apparatus of the fifth aspect, the colors corresponding to the free information and the pay information are set.

According to the FM multiplex broadcast receiving apparatus of the sixth aspect, the color is set in the information broadcast by the FM multiplex broadcast.

According to the FM multiplex broadcast receiving apparatus of the seventh aspect, the color is set depending on whether or not the information is updated.

According to the FM multiplex broadcast receiving apparatus of the eighth aspect, the color corresponding to the information input by the input means and the information received by the receiving means is set.

According to the FM multiplex broadcast receiver of the ninth aspect, the color is set in correspondence with the valid period during which the pay information can be received.

Therefore, in any case, it is possible to intuitively recognize what kind of information the displayed information is, and it is possible to increase the added value of the product.

According to the FM multiplex broadcast receiving apparatus of the tenth aspect, the original digital color signal and the signal obtained by converting the information received in the FM multiplex broadcast into the color signal are selectively output. In a device having a function of displaying a color video signal, it is possible to display the information, which is not originally displayed in color, in color by utilizing the function.

According to the FM multiplex broadcast receiving device of the eleventh aspect, since the acquired color code is converted into another color code, the received information can be displayed in many colors. Become.

According to the FM multiplex broadcast receiving apparatus of the twelfth aspect, since the television broadcast received by the television broadcast receiving means is displayed on the color display means, the FM multiplex information can be recorded by one apparatus. A television image can be displayed, and a low-cost device can be realized.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration example of an FM multiplex broadcasting device.

FIG. 2 is a diagram illustrating FM multiplex information.

FIG. 3 is a diagram showing an external configuration of an FM multiplex broadcast receiving apparatus of the present invention.

FIG. 4 is a block diagram showing an internal configuration example of the embodiment of FIG.

5 is a block diagram showing a configuration example of an FM multiplex reception circuit 37 of FIG.

6 is a block diagram showing a configuration example of a control circuit 34 of FIG.

FIG. 7 is a timing chart illustrating the operation of the embodiment of FIG.

FIG. 8 is a diagram illustrating AC driving of liquid crystal.

9 is a flowchart illustrating an operation in the FM mode of the embodiment of FIG.

10 is a flowchart showing details of the data analysis processing in step S5 of FIG.

11 is a flowchart showing details of free / paid discrimination processing in step S11 of FIG.

12 is a flowchart showing details of the data update determination processing in step S12 of FIG.

13 is a flowchart showing details of genre determination processing in step S13 of FIG.

FIG. 14 is a flowchart showing details of broadcast station determination processing in step S14 of FIG.

15 is a flowchart showing the details of the information type determination processing in step S15 of FIG.

16 is a block diagram showing a configuration example of the IC card of FIG.

FIG. 17 is a flowchart showing details of valid period determination processing when the IC card of FIG. 16 is used.

FIG. 18 is a flowchart illustrating an operation in the electronic notebook mode of the embodiments of FIGS. 4 and 6;

FIG. 19 is a flowchart illustrating a process of reading data in the electronic notebook mode according to the embodiments of FIGS. 4 and 6;

20 is a block diagram showing another configuration example of the control circuit 34 of FIG.

FIG. 21 is a diagram for explaining the operation of the embodiment in FIG.

FIG. 22 is a diagram showing another display example.

FIG. 23 is a diagram illustrating a spectrum of FM multiplex broadcasting.

FIG. 24 is a diagram illustrating L-MSK modulation.

FIG. 25 is a diagram illustrating a product code.

[Explanation of symbols]

 11 FM multiplex broadcasting receiver 15 key 16 color liquid crystal display panel 18 mode switch 19 speaker 21 IC card 32 TV tuner 34 control circuit 37 FM multiplex receiving circuit 61 CPU 63 TV control circuit 65 data memory 67 display memory 69 display port 70 A / D converter

Claims (12)

[Claims] 1. A receiving means for receiving information broadcast by FM multiplex broadcasting, a color display means for displaying in color, a discriminating means for discriminating the type of information received by the receiving means, and the discriminating means. An FM multiplex broadcast receiving apparatus, comprising: a display control unit configured to set a display color according to the determination result and perform a display operation for the color display unit with the set display color. 2. The type of information discriminated by the discriminating means is an information genre.
The FM multiplex broadcast receiving device according to item 1. 3. A receiving means for selectively receiving information broadcast by FM multiplex broadcasting from a plurality of broadcasting stations, a color display means for displaying in color, and the broadcasting station of the information received by the receiving means. And a display control unit that performs a display operation on the color display unit with the set color. 4. A receiving means for receiving information broadcast by FM multiplex broadcasting, and determining whether the information received by the receiving means is complementary information for complementing a program or independent information independent of the program. And a display control unit that sets a color corresponding to the determination result of the determination unit and performs a display operation on the color display unit with the set color. A characteristic FM multiplex broadcast receiver. 5. A receiving means for receiving information broadcast by FM multiplex broadcasting, a determining means for determining whether the information received by the receiving means is free information or pay information, and displays in color. An FM multiplex broadcast receiving apparatus comprising: a color display means and a display control means for setting a color corresponding to a discrimination result of the discrimination means and performing a display operation on the color display means with the set color. 6. A receiving means for receiving information that does not include color information broadcast by FM multiplex broadcasting, a color display means for displaying in color, and a predetermined color set in the information received by the receiving means. An FM multiplex broadcast receiving apparatus comprising: a display control unit that performs a display operation on the color display unit with a set color. 7. A receiving means for receiving information sequentially broadcast by FM multiplex broadcasting, a color display means for displaying in color, and a detecting means for detecting that the information sequentially received by the receiving means has been updated. An FM multiplex broadcast receiving apparatus comprising: a display control unit configured to set a color corresponding to a detection result of the detection unit and performing a display operation on the color display unit with the set color. 8. A receiving means for receiving information broadcast by FM multiplex broadcasting, an input means for inputting information such as a telephone number by a manual operation, information received by the receiving means, and input by the input means. Storage means for storing the information, a discrimination means for discriminating the information received by the reception means and the information input by the input means, a color display means for displaying in color, and a discrimination result of the discrimination means. And a display control unit that performs a display operation on the color display unit with the set color. 9. A receiving means for receiving pay information broadcast by FM multiplex broadcasting, a color display means for displaying in color, and a storage means for storing data defining a period during which the pay information can be received. And a display unit for setting a color corresponding to the result of the determination by the determination unit for determining the valid period of the data stored in the storage unit and performing a display operation on the color display unit with the set color. An FM multiplex broadcast receiving apparatus comprising: 10. A first color signal generating means for A / D converting a color video signal to generate a digital color signal, a receiving means for receiving information broadcast by FM multiplex broadcasting, and a receiving means for receiving the information. Second color signal generation means for generating a digital color signal from the information, one of the digital color signal generated by the first color signal generation means and the digital color signal generated by the second color signal generation means An FM multiplex broadcast receiving apparatus, comprising: a selective output means for selectively outputting for color display. 11. A receiving unit for receiving information broadcast by FM multiplex broadcasting, a color code obtaining unit for obtaining a color code from the information received by the receiving unit, and the color obtained by the color code obtaining unit. Color code conversion means for converting a code into another color code, color display means for displaying in color, and display operation for the color display means with a color set by the color code converted by the color code conversion means. F comprising display control means
M multiplex broadcasting receiver. 12. A television broadcast receiving means for receiving television broadcast is further provided, and the color display means displays an image corresponding to a television signal received by the television broadcast receiving means in color. The FM multiplex broadcast receiving apparatus according to any one of claims 1 to 11.