JPH05244330A - Facsimile broadcast receiver - Google Patents

Abstract

PURPOSE:To relieve timewise and economical load of a terminal user by processing information according to a prescribed function so as to save a memory capacity and a hard copy time and recording, paper when a program selected by an input means is received and a count value of a count means corresponds to selected line information. CONSTITUTION:A line memory generating section 231 reads line drawing pitch data out of a line number memory section 235 when a count value of line number reaches a count value to display memory data and outputs the read line drawing picture data to a post-stage multiplexer 233 together with a select signal. A data output from the multiplexer 233 is given in matching with a timing of picture data outputted from a data decoding section 21 and inserted by the select signal in a timing when the line drawing picture data are to be inserted. The picture data synthesized by the multiplexer 233 are outputted to a display device 25 and a pattern indicating a line scale is displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile broadcast receiving apparatus for broadcasting a document, a figure, a photograph, etc., which is multiplexed with a television broadcast and receiving it as a hard copy or a soft copy by a facsimile apparatus.

[0002]

2. Description of the Related Art In recent years, facsimile broadcasting has been put into practical use. In this facsimile broadcasting, image information signals such as characters and photographs, that is, facsimile image data are multiplexed on the television radio waves for the current television broadcasting on the sender side, and according to a preset facsimile broadcasting program table. The image is sent out, and the receiver side receives the various image information transmitted as desired, and the facsimile apparatus obtains the image information as a hard copy.

In this facsimile broadcasting, a subcarrier is provided outside the band of a television audio signal, and four-phase differential phase modulation is performed on the subcarrier with image data converted by a facsimile encoding method. Information is transmitted by modulating a television sound carrier.

Such a facsimile broadcast receiving apparatus is
As shown in FIG.
And the signal of the required channel is received by the QPSK demodulator 1
It is demodulated with 03. The demodulated image data is written in the working memory unit 117 after being subjected to error correction and the like in the packet decoder unit 105. Here, the program number of the program desired by the receiver is previously set by the receiver by the key input circuit unit 10
It is keyed in from 9 and stored in the reservation memory unit 113. Therefore, when the data is received, the CPU 107 reads the program number added to the data stored in the working memory unit 117, compares it with the program number stored in the reserved memory unit 113, and decodes only the necessary data. Part 1
The data is decoded at 21 and converted into pattern data, and the display device 12
Control to send to 5.

On the other hand, as a usage mode of facsimile broadcasting, a method of obtaining information by program reservation is conceivable in addition to the method of receiving necessary data as described above. In this case, the receiver first inputs the program number into the key input circuit unit 10
When keyed in via 9, the time to receive that program is also specified. Next, the CPU 7 judges the reception time by the clock unit 111, searches for the designated data in the same manner as above when the time designated by the key input comes, and stores the data in the buffer memory unit 115. Alternatively, instead of the display output on the display device 125, the printer outputs the print.

At this time, in facsimile broadcasting, it is premised that a hard copy of the image information received on a sheet of a predetermined size is taken, and the amount of information that can be stored on the sheet of a predetermined size is one unit of data. That is, this unit is transmitted as one page of information. The program number and page number used for program search are also added in this unit.
Therefore, even when the received information is stored in the memory or displayed on the display unit, this one page is processed as one unit.

Further, in facsimile broadcasting, even if it is desired to periodically know only the change in information of a specific portion of a certain program that is repeatedly broadcast, the data is processed in page units, so the same page is used every time. Unnecessary data will be recorded together. In particular, since facsimile broadcasting is a medium characterized by being able to obtain detailed information, the amount of information is large and the useless recording of data increases even if the required data is small.

[0008]

In the facsimile broadcasting as described above, when the standby reception is performed by the program reservation, the information amount of the reserved program, that is, the number of pages is large or the number of programs is large. Requires a large amount of buffer memory. Further, when printing out using a printer, it takes time to obtain one page of information due to the large amount of information, and the print sheet consumed may increase the financial burden on the terminal user. there were.

However, there are various kinds of information that can be provided, and when the data is created on the side of the broadcasting station from the standpoint of the broadcasting station side who wants to watch the user and habitual viewing, In the case of information such as stock information that requires only updating the data, it may be broadcast without changing the program number or program structure. In such a case, the information that the recipient needs is limited to a limited part of the limited page, and only the required part needs to be stored in the buffer memory and printed out. become.

The present invention has been made in view of the above problems, and it is possible to reduce the time and economic burden on a terminal user by saving memory capacity, reducing hard copy (printout) time and recording paper. It is an object of the present invention to provide a facsimile broadcast receiving device that can be used.

[0011]

In order to achieve the above object, the present invention is a facsimile broadcast receiving apparatus capable of receiving a facsimile broadcast and displaying and outputting the obtained image data. Counting means for counting, display means for displaying line information by adding line information to the received data based on the count value obtained by the counting means, and information on a program to be received in order to receive desired information. Means for inputting and selecting with the line information related to the desired information, and the information selected when the program selected by the input means is received and the count value of the counting means corresponds to the selected line information. And a processing means for processing according to a predetermined function set in advance.

[0012]

In the facsimile broadcast receiving apparatus of the present invention, the display means first adds line information to the received data based on the count value obtained by the counting means and displays the received data. The receiver refers to this display and selects and inputs in advance the information regarding the program to be received and the line information regarding the desired information in order to receive the desired information by the input means.

Next, when the facsimile broadcast is received,
When the program selected by the input means is received and the count value of the counting means corresponds to the selected line information, this information is processed by the processing means in accordance with a preset function. That is, the processing by the predetermined function means, for example, storing the received image data in the storage means, printing out, displaying, and further the image data stored in the storage means and the newly received and input image data. When there is a difference, the processing is such that only the different portion is replaced.

As described above, in the conventional facsimile broadcasting, information is recorded in page units. However, according to the present proposal, only a necessary portion in the page is recorded, so that the economical burden on the terminal user is reduced. It

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of the entire facsimile broadcast receiving apparatus according to the present invention.

First, a schematic configuration of the entire facsimile broadcast receiving apparatus will be described with reference to FIG.

The tuner 1 includes an antenna Ant. For example, a facsimile signal of a desired program is selected from the television radio waves for television broadcasting received at.

The QPSK demodulation unit 3 includes an antenna Ant. QPS the facsimile signal received by tuner 1 via
K (Quaternary Phase Shift)
Keying; quarter phase shift keying) demodulation.

The packet decoder 5 decodes packets and corrects errors.

The CPU 7 has an external memory via a packet decoder unit 5, a key input circuit unit 9, a clock unit 11, a reservation memory unit 13, a data decoding unit 21, a working memory unit 17 and an interface circuit (not shown) via a bus. For example, it is connected to a memory card, which is a card-shaped storage medium that is detachably attached to the main body of the apparatus, and controls the operations and the flow of data. For example, as will be described later, the DA of each packet whose error correction has been completed
Prefix part P for identifying T (data part)
The control is performed such that information on the FX and the DAT section is sequentially stored in the working memory section 17.

The key input circuit section 9 constituting the input means is
A program reservation such as a reception station of facsimile broadcasting, time, etc., or various data is provided through an operation unit, which is provided on the upper surface of the apparatus main body (not shown) and includes a keyboard, a mouse, or touch keys provided on the front surface of the display of the display device 25 described later. It is for inputting an instruction such as taking out.

The clock unit 11 outputs data such as the current time and elapsed time via the bus, and is used as data of date and time information of receiver information, which will be described later.
It is used for displaying the current time, elapsed time, etc. on a clock display section provided near an operation section (not shown), and for program reservation when receiving a facsimile broadcast.

The reservation memory unit 13 stores the program number and the number of pages included in the packet when making a reservation for the reception operation of the facsimile broadcast, and the working memory unit 17 stores the data indicating the data length of the heading portion and the control packet. Etc. are stored.

The display device 25 displays the image information decoded by the data decoding unit 21 and the transmission record and reception record as communication records, and an arbitrary display device such as LCD or PDP is used. In addition, this display device 25
The line display control unit 23, which will be described later, constitutes a display means.

Next, referring to the block diagram of FIG. 2 and the line scale insertion timing diagram of FIG. 3, the configuration and operation of the line detection unit 19, the data decoding unit 21, and the line display control unit 23 shown in FIG. 1 will be described. To do. The line detection unit 19, the data decoding unit 21, and the line display control unit 23 constitute a counting unit, a display unit, and a processing unit.

First, in FIG. 2, the image data transmitted via the data bus is first input to the line detection unit 19. The line detection unit 19 is a line synchronization detection unit 1.
91 and the page end code part 193. The line synchronization detection unit 191 is a circuit that detects a line synchronization code added and transmitted to the image data, and the page end code detection unit 193 similarly indicates the end of the page added and transmitted to the image data. This is for detecting the page end code. Each detection unit 191,1
When the target code is detected, 93 outputs a detection signal to the line graduation generator 231 of the line display controller 23.

The line display control section 23 comprises a line scale generation section 231, a multiplexer 233 and a line number memory section 235. The line scale generation section 231 receives a detection signal from the page end code detection section 193. Data breaks in page units of image data are detected, and thereafter, the number of lines of data is counted each time a detection signal from the line synchronization detection unit 191 is input.

Further, referring to FIG. 3, the line scale generation unit 231 reads line drawing data from the line number memory unit 235 when the count value of the number of lines reaches a value at which the memory data should be displayed, and reads this. The line drawing data and the select signal together with the multiplexer 23 in the subsequent stage
Output to 3. The data output from the multiplexer 233 is performed at the same timing as the image data output from the data decoding unit 21, and the line drawing data is inserted by the select signal at the timing to be inserted.
The image data synthesized by the multiplexer 233 is output to the display device 25, and a screen in which the line scale (number) M is displayed on the left side of the screen is displayed as in the display example shown in FIG.

The line number memory section 235 stores pattern data of line numbers to be displayed.
Each line is read and used, but if the data to be displayed is not the numerical values shown in FIG. 5 but only marks are made at regular intervals so that the number of lines can be understood, the output pattern can be constant. Especially line number memory section 2
35 is not needed.

If it is necessary to superimpose the line scale area on the image data and display it, the scale display area may be unnecessary and may be annoying in normal use. As shown, there is no problem if a means for inputting the multiplex on / off signal is provided so that only the image data is output from the multiplexer 233 when the scale display area is unnecessary.

Further, the hardware portion shown in FIG. 2 can be processed by software by the CPU 7.

Next, referring to FIG. 4, the packet structure of the facsimile broadcast received by the facsimile broadcast receiving apparatus will be described.

In facsimile broadcasting, when transmitting information from a broadcasting station, a certain fixed number of bits are transmitted as one block. This is called a packet. That is, the facsimile signal in the facsimile broadcast has a packet format of the mode control unit MC and the data packet unit PAC, and the data packet unit PA
C is an error detection code CRC used when the prefix part PFX, the data part DAT, and the data part DAT are control data.
And an error correction check code CHC. A packet is a control signal packet when the data portion DAT is control data and an image signal packet when it is image data.

An example of the structure of this packet is shown in FIG. Figure 4
The packet P shown in 1 indicates one of the 32 rows of packets forming the frame matrix, and a frame synchronization code FC (not shown) is provided at the end of the frame matrix.
Scrambling is applied to all data signals except the frame synchronization code FC.

The mode control unit MC is provided at the end of the packet P and is used for identifying the service.
The prefix part PFX is provided at the tip of the data packet part (PAC) and is used to identify the subsequent data part DAT.

Here, when the data part DAT is a control signal packet by the identification of the prefix part PFX, it is used as a control data part, and an error detection code CRC is provided as a part of the data part DAT. Further, the control data section is composed of program number data which is program selection data, a specific address, a page number, a total number of pages, coding identification and an undefined portion. In addition, when the identification result of the prefix portion PFX is an image signal packet, it is used for image data, and has a packet configuration including line synchronization code, image data, and control data that is display control data necessary for display.

The correction check code CHC is an error correction code bit for correcting an error in transmission of the prefix part PFX and the data part DAT, and is not necessary after the error correction is completed.

Further, the data portion DA of the image data packet
The image data included in T is transmitted in units of information for one line. The line synchronization code provided at the tip of each line of this image data is information indicating the beginning of a line, and the information that follows is line image data, and this image data is included in the encoded data. Data of the same pattern as the line sync code is not included. The number of bits of this image data does not necessarily have a one-to-one correspondence with the number of bits of the data portion DAT of the packet.

When the image signal for one page is transmitted,
Information indicating the end of a page is transmitted as a page end code.

Next, the operation and action of this embodiment will be described with reference to the flow charts of FIGS.

Referring to FIG. 6, when a program reservation has not been made yet or to make a new program reservation, the program desired by the receiver is first selected and received.

For example, referring to a specific example of the broadcast program shown in FIG. 5, FIG. 5 shows the snow cover information of the ski resort received by facsimile broadcast for each prefecture, and regularly updates only the amount of snowfall. Then, it will be sent as the snow cover information of each ski resort. In this information, for example, assume that it is always desired to know only the snow cover information of the ski resort in Sendai.

By designating the line scale shown at the left end of FIG. 5 through the touch key, the position of the necessary information is recorded from the second time, and only the portion corresponding to the designated line scale is recorded. The procedure for doing so will be described.

First, in step S11, an instruction of information required for program reservation is input to the facsimile broadcast receiving apparatus. That is, the receiver of the information inputs the necessary information, specifically, the program number and page number that broadcast the snow cover information in order to obtain the snow cover information of the ski resort in Sendai.
Enter the start and end points of the line number of the required part of the information based on the scale values. For example, in the case of the information range shown in FIG. 5, line numbers 100, ..., 200 are input.

As a result, the reservation contents are stored in the reservation memory unit 13 in step S13, and when the program including the necessary information is received, the previously input and stored line number information is read out, It is possible to record only a desired and desired portion without recording unnecessary data in the same page.

Next, the procedure for receiving this data will be described. First, in step S21, a facsimile of a program stored in the reservation memory unit 17 is preliminarily keyed in by the receiver from the television radio wave for television broadcasting through the tuner 1, the QPSK demodulation unit 3, and the packet decoder unit 5. After selecting a signal, demodulating it, performing error correction, etc., the information of the prefix part PFX of each packet is sequentially stored in the working memory 17.

Subsequently, in step S23, the CPU 7 reads the program number and page number of the data to be received, which has been input by the receiver in advance, from the reserved memory unit 13, and further, from the data written in the working memory unit 17, the control packet. Is searched for, and the image information to be obtained is searched for by comparing the information of the program number included in this packet with the information read from the reserved memory unit 13.

When the desired image information is found (step S
25) In step S27, it is confirmed whether or not the output range is specified, and if it is not specified (step S29), in step S31, the CPU 7 sequentially sends the DAT part of the image data packet including the information to the data decoding part 21. , The encoded image data is decoded and converted into pattern data and sent to the display device 25 (step S
37).

On the other hand, when the output range is specified in step S29, the process proceeds to step S33, the CPU 7 reads the line data indicating the output range from the reserved memory section 13, and further needs the data selected in step S23. Select the part (output range). This output range is determined by counting line sync codes from the beginning of data.

Further, in step S35, the data related to this output range is sent to the display device 25 (step S35).
37). At this time, when selecting only the predetermined output range,
A page end code or the like originally added to the received data is added as necessary and output. Further, since it is not necessary to display the normal line scale, the multiplexer 23 shown in FIG.
The on / off signal of 3 is turned off.

Next, with reference to FIG. 8, the procedure for displaying the line scale in the line display control unit 23 will be described.

First, in step S41, the line detector 1
The page end code detection unit 193 of 9 detects the page end code of the image data that has been sent so far (step S49), and prepares for the next data to be sent. 231 is initialized.

Next, in step S43, the line detector 1
The line synchronization detection unit 191 of 9 reads the line synchronization code indicating the start of the line data added to the image signal and detects the start of the line data by the line display control unit 23.
Is transmitted to the line scale generation unit 231.

The line scale generation unit 231 to which the detection of the line code is transmitted counts the number of lines and waits at step S45 until the count value becomes the timing to display the scale. When the counted value reaches the display timing, the line scale generation unit 231 outputs the line drawing data to the display device 25 (step S47) and at the same time, generates a select signal for combining the line drawing data with the decoded image data. ..

At this time, the line display control unit 23
Is placed after the data signal block because it is supposed to display the line scale on the left edge of the data, and it is necessary to combine the scale data with the decoded and patterned data. Because there is. It may be before the data decoding block if the display device 25 has the ability to display an additional line scale area outside the data display area. At this time, since the number of bits of the data to be added is known, there is no problem in the decoding in the data decoding unit 21.

The above is the display method of the display area of the line scale. The user of the facsimile reads this information and specifies the desired area together with the program number. As a designation method, the start point and the end point of the designated area are designated by the number of lines so that the CPU 7 can easily determine. At this time, it is not necessary to limit the designated area to one place. The input information is stored in the reservation memory unit 13 together with the program number and the like. C
When the PU 7 confirms the reception of the desired program, it reads the necessary program data in the working memory unit 17 while counting the number of lines, and detects only the necessary information line according to the information of the designated area stored in advance in the reserved memory unit 13. Part 1
9 or to write data to the buffer memory area if you want to save the data. Further, the image data stored in the working memory 17 may be compared with the newly received and input image data, and if there is a difference, only the difference may be replaced.

As described above, according to this embodiment,
It is possible to specify the required information area not only when information is recorded by soft copy but also when it is hard copy.

[0058]

As described above, according to the present invention, only a necessary portion of necessary information can be recorded, so that the memory capacity for recording the information can be saved and the information output at the time of hard copy can be performed. By shortening the time and reducing the number of recording sheets, the time and financial burden on the terminal user can be greatly reduced.

[Brief description of drawings]

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

2 is a block diagram showing an internal configuration of a line detection unit, a data decoding unit, and a line display control unit shown in FIG.

FIG. 3 is a diagram showing an example of a line scale display area insertion timing.

FIG. 4 is a diagram showing a configuration of a data packet portion of facsimile broadcasting.

FIG. 5 is a diagram showing an example of a program displayed on a display device together with a line scale.

FIG. 6 is a flowchart showing a procedure for reserving a program.

FIG. 7 is a flowchart showing a procedure for receiving data.

FIG. 8 is a flowchart showing a procedure for displaying a line scale.

FIG. 9 is a block diagram showing a configuration of a conventional example.

[Explanation of symbols]

 1 tuner 3 QPSK demodulation unit 5 packet decoder unit 7 CPU 9 key input circuit unit 11 clock unit 13 reserved memory unit 15 buffer memory unit 17 working memory unit 19 line detection unit 21 data decoding unit 23 line display control unit 25 display device

Claims (1)

[Claims] 1. A facsimile broadcast receiving apparatus capable of receiving a facsimile broadcast and displaying and outputting the obtained image data, a counting means for counting the number of display lines from the received data supplied, and a counting means obtained by this counting means. Display means for adding line information to received data based on the count value and displaying it, and inputting and selecting information related to a program to be received in order to receive desired information together with line information related to the desired information. Possible input means, and processing means for processing the information selected by the input means when the count value of the counting means corresponds to the selected line information, the information is processed according to a predetermined function set in advance. A facsimile broadcast receiving apparatus comprising: