JPH0591428A - Broadcast receiving equipment - Google Patents

Abstract

PURPOSE:To surely acquire the contents of the character broadcasting together with reduction of the power consumption by automatically switching on a power supply for storage of the contents of all programs and then turning off the power supply when all program contents are stored. CONSTITUTION:A CPU 11 checks whether the reservation modes are set at each prescribed time or not when a power supply is kept in an OFF state. If so, the CPU 11 supplies the power to a power unit 16 at the reception starting time. Then the CPU 11 controls 8 tuner 3, a microprocessor 5, etc., based on the reservation data read out of a memory 12 and stores extracts the reception and character data on a reserved program tostore the contents of the character broadcast in the memory 12 for each page. When this storage is complete, a reception and message is displayed on an LCD 10 and the supply of power is stopped. In such a constitution, the necessary information can surely be acquired and at the same time the power consumption can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast receiving device,
More specifically, the present invention relates to a broadcast receiving device that makes it possible to promptly obtain desired information and save power.

[0002]

2. Description of the Related Art In a broadcast receiving apparatus, particularly a teletext receiving apparatus, in order to see information on all pages of a desired program, it is necessary to watch the program from the beginning to the end. And it took a long time to get the necessary information. That is, in text broadcasting, the broadcast data is transmitted page by page, but the broadcast data per page is continuously transmitted for a certain time, and when the transmission time for one page is completed, the next page is transmitted. .. In this way, when the data of each page is sequentially transmitted and the transmission of multiple pages constituting the program is completed, the broadcast of the teletext program is completed, and then the teletext of the same content is repeated for a certain time. Will be broadcast. Therefore, when trying to obtain the necessary information in the teletext, it is necessary to pay attention to the teletext receiver and obtain the necessary information at least from the first page to the final page of the program. It was Therefore, conventionally, a teletext receiving device is provided with a memory for storing received data, and the broadcast data of each page of the received teletext is stored in the memory, and the broadcast data stored in the memory is displayed page by page. A teletext receiver with a memory function that can be seen has appeared.

[0003]

However, such a conventional teletext receiving apparatus is provided with a memory and stores the broadcast data of each page of the teletext in the memory,
Although it can be displayed page by page and viewed, in order to store the broadcast data of the program to be stored, the listener confirms the time zone in which the program to be viewed is broadcast, turns on the power, and At least during the time when the broadcast data of the program is stored in the memory, it is necessary for the listener to store the data, or to always operate the text report transmitter / receiver to store the program in the memory. As a result, there is a problem in that immediacy is lacking when it is necessary to promptly obtain accurate information without knowing when all the broadcast data of the program is stored in the memory. In addition, if the teletext receiving device is constantly operated, the power consumption increases, and since the portable teletext receiving device is battery-powered, low power consumption is required as its absolute condition. There was a problem that it could not meet the requirements of portability. Therefore, the present invention stores the broadcast data of the designated program in the memory, and when the broadcast data of all pages of the broadcast data of the program is completely stored in the memory, the power of the broadcast receiving device is turned off, and the memory is stored in the memory. It is intended to notify that the storage of the broadcast data is completed, to ensure the immediacy of the teletext data and to reduce the power consumption.

[0004]

The invention according to claim 1 is
Receiving means for receiving broadcast radio waves, output means for outputting broadcast contents according to the broadcast radio waves received by the receiving means, and reservation data storage means capable of storing a reserved program and a start time of the reserved program as reservation data. Broadcast information storage means for storing the broadcast content of the reserved program, operation means for storing the reservation data in the reservation data storage means,
Based on the power supply means for supplying power and the reservation data stored in the storage means by the operation means, a storage time required to store all broadcast information of the reserved program is calculated, and the reservation data is stored. Power is supplied from the power supply unit by the storage required time before the reserved time stored in the storage unit, and all broadcast contents of the reserved program are received and stored in the broadcast information storage unit. And a control means for stopping the power supply by the power supply means when the reception of all the broadcast contents to the broadcast information storage means is completed, and, for example, it is described in claim 2. As described above, when all the broadcast contents of the reserved program are stored in the broadcast information storage means, a notification that the reception of the data of the reserved program is completed is output by a predetermined method. And it includes a notification means.

[0005]

According to the first aspect of the invention, the receiving unit receives the broadcast radio wave, and the output unit outputs the broadcast content corresponding to the received broadcast radio wave. The reserved program and the start time of the reserved program are stored as reservation data in the reservation data storage unit according to the operation by the operation unit, and the broadcast content of the reserved program is stored in the broadcast information storage unit. When the reservation data is stored in the reservation data storage unit by the operation unit, it is necessary for the control unit to store all broadcast information of the reservation program based on the reservation data stored in the reservation data storage unit. Calculating the required storage time, power is supplied from the power supply means before the reserved time stored in the reserved data storage means by the required storage time, and all broadcast contents of the reserved program are received. Then, while storing in the broadcast information storage means, when the storage of all broadcast contents in the broadcast information storage means is completed, the power supply from the power supply means is stopped. Therefore, the listener simply turns on the power of the broadcast receiving device and stores the broadcast data of all pages of the program of the broadcast only by storing the program that broadcasts the necessary information and the start time in the memory. Then, when it is stored in the broadcast information storage means, the power supply can be stopped. As a result, necessary information can be promptly and surely stored in the memory so that it can be used, power consumption can be reduced, and low power consumption is a portable condition. Even in the broadcast receiving apparatus of, it is possible to sufficiently cope with the situation. According to the second aspect of the present invention, when the broadcast content of the target program is stored in the broadcast information storage means, a notification to that effect can be issued, so that the necessary broadcast information is stored in the broadcast information storage means. It is possible to know what has been done and to obtain the necessary information even more quickly.

[0006]

EXAMPLES The present invention will be specifically described below based on examples. 1 to 5 are diagrams showing an embodiment of a broadcast receiving apparatus according to the present invention. FIG. 1 is a block diagram of a broadcast receiving apparatus 1 according to an embodiment of the present invention. The broadcast receiving apparatus 1 includes an antenna 2, a tuner 3, a VIF 4, a microprocessor 5, an error detector 6 and a text VRAM.
7, CG 8, display controller 9, display unit 10, CPU
11, memory 12, keyboard 13, original signal generator 1
4, a frequency dividing circuit 15, a power supply device 16 and the like. The broadcast receiving apparatus 1 is capable of receiving at least a character broadcast or a broadcast in which programs of specific items are repeatedly performed.

A power supply device (power supply means) 16 converts an external power supply or a power supply from a battery (not shown) into a predetermined voltage and supplies it to each part of the broadcast receiving device 1. This power supply 1
A control signal from the CPU 11 is input to 6, and the power supply device 16 starts and stops power supply according to this control signal.

The broadcast receiving apparatus 1 receives broadcast radio waves by its antenna (reception means) 2, and the broadcast radio waves received by the antenna 2 are sent to the tuner 3. Tuner 3
Is a so-called electronic tuner composed of a coil, a capacitor, a resistor, etc., and operates under the control of the CPU 13. The tuner 3 tunes to a radio wave of a frequency designated by the CPU 13, extracts a signal of that frequency, and
Output to F4.

The VIF 4 is composed of a demodulation circuit, a detection circuit, etc., demodulates and detects a signal input from the tuner 3, and extracts a video signal portion from the signal.

The microprocessor 5 comprises an A / D converter, a buffer, a decoder, etc., and the microprocessor 5 converts the analog video signal input from the VIF 4 into a digital signal by the A / D converter. And store it in the buffer. Further, the microprocessor 5 decodes the input signal by the decoder and converts it into character data.

The digital signals stored in the buffer of the microprocessor 5 are sequentially taken out and output to the error detector 6, which detects the number of errors in the error signal and outputs the detected error number to the microprocessor. Output to the processor 5 and the CPU 11.

The text VRAM 7 stores the character position, size and character code on the display screen under the control of the CPU 11.

The CG 8 stores a display dot pattern corresponding to a size and a code. When the size and the code are input from the text VRAM 7, the CG 8 outputs the display dot pattern to the display controller 9.

The display controller 9 is composed of an input sequence counter and a display position control circuit, and displays a position signal and a display signal so that the dot pattern row input from the CG 8 is sequentially displayed from the upper left to the lower right of the display screen. It is generated and output to the display unit 10.

The display unit (output means) 10 is a Y-CTR2.
1, an X-CTR 22 and an LCD (liquid crystal display device) 23. The LCD 23 includes a Y-CTR 21 and an X-CT.
It is driven by the drive signal from R22. Y-CTR2
The 1 and the X-CTR 22 output to the LCD 23 a drive signal for controlling designated ON / OFF for each coordinate of the LCD 23 based on the position signal and the display signal input from the display controller 9. The LCD 23 has display pixels arranged in a dot matrix, and the Y-CTR2
It is turned on (for example, black display) or turned off (transparent display) by the drive signal from the 1 and X-CTR 22.

The CPU 11 is a microprocessor, R
It is composed of an OM, a RAM, and the like, and the ROM stores programs as the broadcast receiving apparatus 1, selectable channel numbers, frequencies corresponding to the channel numbers, and the like. RAM is used as a work memory, and the microprocessor uses the program in ROM to
The respective units of the broadcast receiving apparatus 1 are controlled to function as the broadcast receiving apparatus 1. Further, the CPU 11 has a memory 1 described later.
Based on the reservation data registered in No. 2, the power supply device 16 is driven to control the supply / stop of the power supply, and all the broadcast information of the reserved program is stored in the memory 12 to store the broadcast information of all pages. When the storage in 12 is completed, the power supply 16 is controlled to stop the power supply. Therefore, the CPU 11 supplies the power based on the reservation data.
It functions as a control unit that controls the stop and the storage of the broadcast information.

The keyboard (operating means) 13 is, as shown in FIG. 2, an item selection key 31, a program selection key 32, a channel selection key 33, and a power on / off key (ON / O).
An FF) 34, a feed scroll key 35, a return scroll key 36, a reservation key 37, etc. are provided to perform various operations of the broadcast receiving apparatus 1. Item of program selected in advance by the item key 31 (for example, item indicating the type of program such as weather, traffic information, stock price information, news, and cooking)
Can be selected, and the channel of the broadcasting station can be selected by the channel key 33. Further, the program of each channel can be selected by the program selection key 32, and the power of the broadcast receiving apparatus 1 can be turned on / off by the on / off key 34. The scroll keys 35 and 36 are
A plurality of items stored in advance in the ROM of the CPU 11 or a plurality of items registered in the memory 12 described later can be scrolled in the forward or reverse order, and when the program key 32 is pressed, the channel can be selected. You can scroll through various programs. Furthermore, when the channel key 33 is turned on, the channels that can be selected can be selected by the scroll keys 35 and 36. The reservation key 37 is a key used when reserving a program whose broadcast information is to be stored in the memory 12, and stores the program selected by the item key 31, the channel key 33, the program key 32, and the scroll keys 36 and 37. 1
Register in 2. That is, when a program to be reserved is selected by using each of the above keys, the reservation key 37 is turned on at that time so that the data of the program is registered in the memory 12 as reservation data.

The memory 12 is composed of a RAM or the like, and stores the reservation data and the broadcast information of the program designated by the reservation data. That is, as shown in FIG. 3, the memory 12 is divided into storage areas for reserved channels, program numbers, start times, clock data, reception start times, data headers, and received data. In each item of .and start time, the program number of the channel designated by operating the keyboard 13 and the time to watch the program are written as the start time. That is, when the channel key 33 is turned on, a certain channel is read from the ROM and displayed on the LCD 23. When the displayed channel is not the desired channel, the scroll keys 35 and 36 are operated to switch the channels sequentially displayed, and when the desired channel is displayed, that channel is selected. When the channel is selected, the CPU 11 stores the selected channel in a predetermined channel storage area of the memory 12.
Next, a program is selected. Similarly, in selecting this program, the program key 32 is turned on, the desired program is displayed on the LCD 23 with the scroll keys 35 and 36, and when the corresponding program is displayed, Select a program. No. of selected program
Is written in the program number storage area of the memory 12. When the program is selected, the time to watch the program is next input by the keyboard 13, and the input time is written in the start time storage area. When the start time is input, the CPU 11 subtracts a time sufficient for receiving the program from the start time, and writes the reception start time in the reception start time storage area. In the area of the timekeeping data, the frequency divider circuit 1
The current time calculated by the CPU 11 based on the clock input from 5 is written.

Further, in the data header storage area of the memory 12, for example, as shown in FIG. 4, various information regarding the data of the program such as the total number of pages and the program data length is stored. Further, the received data storage area sequentially stores the broadcast content (broadcast information) of the program for each page.

Therefore, the memory 12 functions as a reservation data storage means capable of storing a reservation channel, a reservation program and a reservation time of the reservation channel as reservation data, and a broadcast information storage means for storing the broadcast content of the reservation program.

The original signal generator 14 is a so-called crystal oscillator composed of a crystal, a resistor, a capacitor, etc., and generates an original clock signal of a constant frequency.

The frequency dividing circuit 15 is formed by, for example, combining several stages of binary counters,
The original clock signal input from the original signal generator 14 is frequency-divided to generate a 1 Hz clock signal that can be used as a reference signal for a clock and output it to the CPU 11. CPU11
Measures the current time with the clock signal from the frequency dividing circuit 15 and displays the current time on the LCD 23,
The broadcasting receiver 1 is used for various controls such as on / off control of the power supply.

Next, the operation will be described. Broadcast receiver 1
Can also display the time, and when the broadcast is not being received, the time is displayed on the LCD 23.

That is, when the on / off key 34 of the keyboard 13 is turned off, the broadcast receiving apparatus 1 measures the current time by the clock signal input from the frequency dividing circuit 15 by the CPU 11 and determines the display position. The current time information is output to the corresponding position in the text VRAM 7. Information on the current time is output from the text VRAM 7 to the display controller 9 via the CG 8 and the LCD is displayed.
The current time is displayed at a predetermined position of 23.

In this state, when the on / off key 34 of the keyboard 13 is turned on, the CPU 11 causes the power supply 1
Control signal for instructing 6 to turn on (for example, “H” signal)
And the power supply device 16 supplies power to the tuner 3, the VIF 4, the microprocessor 5, and the error detector 6 when the control signal instructing to be turned on is input. Further, the CPU 11 outputs a reset signal to the microprocessor 5 to cause the microprocessor 5 to perform an initialization process. When the initialization process is completed, the tuner 3 extracts the signal of the frequency corresponding to the predetermined channel from the broadcast radio wave received by the antenna 2,
After the demodulation / detection processing is performed by the VIF 4, the video signal corresponding to the program designated by the CPU 11 is selected and output to the microprocessor 5. Microprocessor 5
Causes the video signal to be digitally converted by an A / D converter and then stored in a buffer for each scanning line and output to the error detector 6 to cause the error detector 6 to detect the error signal. The error detector 6 outputs the detected number of errors to the microprocessor 5 and the CPU 11, and when the number of errors is within the error recoverable range, the microprocessor 5 decodes it with a built-in decoder and outputs it to the text VRAM 7. To do. The text VRAM 7 sequentially displays the character code and size from the upper left corner to the lower right corner of the display screen.
8 and the CG 8 displays the pattern corresponding to the data sent from the text VRAM 7 to the display controller 9
The display controller 9 determines the display position and the display content, and controls the Y-CTR 21 and the X-CTR 22. The Y-CTR21 and X-CTR22 are LCDs.
A drive signal is output to 23 to display the content corresponding to the corresponding position on the LCD 23.

As described above, when the on / off key 34 is pressed in the broadcast receiving apparatus 1, the contents of the preset channel are displayed on the LCD 23, but the listener aims at the displayed contents. When it is not the content (program), the program can be changed by operating the keyboard 13.

A keyboard 13 is used for a normal program changing operation.
The program key 32 or the channel key 33 is operated. That is, in order to change the program, the program key 32 is turned on and the scroll keys 35 and 36 are operated to sequentially change the programs. When changing the channel, after the channel key 33 is turned on, The channel can be changed by operating the scroll keys 35 and 36. At this time, the CPU
Numeral 11 outputs the selected channel number to the tuner 3 to extract the radio wave of the corresponding channel, and also outputs the program to the microprocessor 5 so that the microprocessor 5 selects the video signal corresponding to the program. Decrypt and display processing is performed. When the program of the desired channel is displayed, the listener has completed the selection.

However, in a case where a program of a specific item is repeatedly broadcast on a plurality of channels with different programs, such as a character broadcast, one program is composed of a plurality of pages, and each page has a predetermined time. After continuous transmission, the next page is transmitted.

Therefore, in the present embodiment, in order to watch such a teletext program efficiently and with low power consumption, the broadcast content of the reserved program is stored in the memory 12 and the broadcast content of the program is stored. When all are stored, power supply is stopped to reduce power consumption.

That is, as shown in FIG.
Checks whether or not the reservation mode is set at preset time intervals when the power is off (step S1). If the reservation mode is set, the reservation stored in the memory 12 is checked. The data is read (step S2), and it is checked whether the current time has reached the reception start time (step S3). When the current time is not the reception start time, the process returns to step S1 and the reservation mode and the current time are similarly checked.

When the current time reaches the reception start time in step S3, the CPU 11 instructs the power supply device 16 to supply power, and the power supply device 16 supplies power to the tuner 3, the VIF 4, the microprocessor 5, and the like ( Step S4). When power is supplied, the CPU 11 causes the memory 1
The tuner 3 and the microprocessor 5, etc. are controlled based on the reservation data read out from 2, and the reserved program is received and the character data is extracted, and the contents of the received character broadcast are received page by page in the reception data of the memory 12. The data is stored in the storage area (step S5). When the storage of the broadcast information of one page of teletext in the memory 12 is completed, it is checked whether or not the reception of the broadcast information of all pages of the program and the storage in the memory 12 are completed (step S6). When the reception of the broadcast information on the page and the storage in the memory 12 are not completed, the process returns to step S5 to receive the broadcast information on the next page and store it in the memory 12.

Reception of broadcast information of all pages and memory 12
When the storage in the LCD is completed, the CPU 11 reads the reception completion message previously stored in the ROM or the like, and the LCD
A reception completion message, for example, "recording of reserved program is completed" is displayed and output to 23 and a completion notice is given (step S7). In addition, this completion notice is displayed on the LCD 23.
The message display is not limited to the above, but may be, for example, a buzzer sounding, a completion message output by voice, or the like, and these may be combined.

When this completion notification is issued, the CPU 11
The power supply device 16 is instructed to stop the power supply, and the power supply device 1
According to the power supply stop instruction, the power supply 6 stops the power supply to the tuner 3, the VIF 4, the microprocessor 5, etc. (step S8).

As described above, when the program to be watched is reserved in advance, the broadcast information of all pages of the reserved program is stored in the memory 12.
When the storage of the broadcast information of the program in the memory 12 is completed, the completion notification is output, the power supply is stopped, and the broadcast receiving apparatus 1 is powered off. Therefore, the information that the listener wants to see can be surely stored in the memory 12, and when the storage in the memory 12 is completed, the completion notification is given, so that the necessary information can be promptly obtained. Further, when the storage in the memory 12 is completed, the power of the broadcast receiving device 1 is turned off.
The power consumption can be reduced, and the present invention can be sufficiently applied to a portable broadcast receiving device.

[0035]

According to the invention described in claim 1, if the listener registers the reserved program and the start time of the reserved program in the memory, the listener automatically supplies the power and all of the reserved programs. The broadcast information of the page is received and stored in the broadcast information storage means, and when the storage is completed, the power supply is stopped. As a result, necessary information can be promptly and reliably stored in the broadcast information storage means for use, power consumption can be reduced, and low power consumption is an absolute requirement. Even a broadcast receiving device can be sufficiently adapted.

According to the second aspect of the invention, when the storage of the broadcast information of the target reserved program in the broadcast information storage means is completed, a notification to that effect is issued, so that the necessary information is stored in the broadcast information storage means. It is possible to know that the information is stored, and the necessary information can be obtained even more quickly.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a broadcast receiving apparatus according to the present invention.

FIG. 2 is a front view of a keyboard of the broadcast receiving device of FIG.

FIG. 3 is a diagram showing a storage state of reserved program data and received data in a memory 12 of FIG.

FIG. 4 is a diagram showing detailed contents of a data header of a memory 12 of FIG.

FIG. 5 is a flowchart showing a broadcast information storage process of a reserved program, a completion notification process, and a power control process.

[Explanation of symbols]

 1 Broadcast Receiver 2 Antenna 3 Tuner 5 Microprocessor 6 Error Detector 10 Display 11 CPU 12 Memory 13 Keyboard 14 Original Signal Generator 15 Frequency Divider 16 Power Supply

Claims (2)

[Claims] 1. A receiving means for receiving a broadcast wave, an output means for outputting a broadcast content according to the broadcast wave received by the receiving means, a reserved program and a start time of the reserved program can be stored as reservation data. Reservation data storage means, broadcast information storage means for storing broadcast contents of the reserved program, operation means for storing the reservation data in the reservation data storage means, power supply means for supplying power, and operation means Based on the reservation data stored in the storage means, the storage required time required to store all the broadcast information of the reserved program is calculated, and the storage time is calculated as compared with the reservation time stored in the reservation data storage means. Power is supplied from the power supply unit before the storage required time, all broadcast contents of the reserved program are received, and stored in the broadcast information storage unit. A broadcast receiving apparatus, comprising: a control means for stopping the supply of power by the power supply means when reception of all broadcast contents to the broadcast information storage means is completed. 2. A notification means for outputting a notification that the reception of the data of the reserved program is completed by a predetermined method when all the broadcast contents of the reserved program are stored in the broadcast information storage means. The broadcast receiving device according to claim 1, characterized in that: