JPH0591433A - Broadcast receiving device - Google Patents

Abstract

PURPOSE:To omit the useless waiting time, to reduce the power consumption, and to improve the availability and the facilitation of a broadcast receiving device by storing the broadcast time of programs and transmitting the information to show that time selected program is excluded out of the relevant broadcast time. CONSTITUTION:When a power supply is applied or the programs are switched, a CPU 11 reads the data on the corresponding channel and program out of a memory 12 and also controls a tuner 3 and a microprocessor 5 for selection of channels. Then the CPU 11 reads the time data on the corresponding selected program out of the memory 12 and then outputs and displays the information showing a fact that the current time is excluded out of its broadcast time at present on an LCD 23. Then the CPU 11 cuts off the power supply and finishes the due processing as long as no other broadcast program is not registered in the same item. Thus it is possible to avoid the continuous reception of a long period of time in 8 data waiting state, to reduce the power consumption and to improve the availability end the facilitation of 8 broadcast receiving device.

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,
In detail, it was decided whether or not the selected program was within the broadcast time of the program, and by notifying it, the usability and convenience of the broadcast receiving device was improved and the power consumption was saved. Broadcast receiver

[0002]

2. Description of the Related Art In a broadcast receiving apparatus, for example, a television receiving apparatus, a radio receiving apparatus, a teletext receiving apparatus, etc., conventionally, when the power is turned on and the channel or program selection is designated, Regardless of the broadcast time of the designated program, the selected program is selected and the broadcast content is output. In particular, in a broadcast receiving device capable of receiving teletext, when a channel to be received and a program are designated, the designated program is selected, received radio waves are decoded, stored as character data, and displayed. Output. In this case, when the reception condition is bad and the decoding cannot be performed normally, or when the character data cannot be received outside the broadcast time, "data waiting" is displayed and output, and the receiving operation is continued until the character data can be decoded.

[0003]

However, in such a conventional broadcast receiving apparatus, when a program is selected, the receiving operation is performed regardless of the broadcast time. , Isn't the screen output properly outside the broadcast time just by looking at the display screen?
It was not possible to judge whether the reception was bad and the display was not output normally. As a result, the reception operation may be continued and the recovery of the reception state may be waited for even though it is outside the broadcasting time, which not only causes poor usability and convenience of the broadcasting reception device but also consumes unnecessary power. There was a problem to do. In particular, in the case of a broadcast receiving apparatus capable of receiving a character broadcast, even when the reception condition is bad, or when the character data cannot be received outside the broadcast time, the "data waiting" is similarly performed.
Is displayed, it is not possible to judge whether it is within the broadcast time, and even if it is outside the broadcast time, "waiting for data"
It was necessary to continue receiving in the state of. As a result, there is a problem that not only the availability and convenience of the broadcast receiving device are poor, but also power is consumed due to unnecessary waiting time.
Therefore, the present invention stores the broadcast time of a program, and when the selected program is outside the broadcast time, it is possible to know that it is outside the broadcast time by performing notification processing to that effect, which is unnecessary. The purpose is to save unnecessary power consumption, save power consumption, and improve the usability and convenience of the broadcast receiving apparatus.

[0004]

The invention according to claim 1 is
Receiving means for receiving broadcast radio waves, output means for outputting broadcast contents corresponding to the broadcast radio waves received by the receiving means, and start of broadcasting of each broadcast program for each of a plurality of broadcast programs received by the receiving means Broadcast information storage means capable of storing the broadcast time from the end to the end as broadcast time information, channel selection instruction means for instructing channel selection of a desired broadcast program, and program selection by the instruction of the channel selection instruction means. Then, the broadcast information storage means is searched to determine whether or not the broadcast program stored in the broadcast information storage means corresponding to the selected broadcast program is within the broadcast time. In the case of, broadcast time discrimination means for outputting notification information to that effect,
Further, for example, as described in claim 2, the broadcast time discrimination means is
If you judge that the selected broadcast program is outside the broadcast time,
The notification information to that effect is output, and the program is switched to another program stored in the broadcast information storage means to be selected by the channel selection means. Further, for example, as described in claim 3, a power supply control means for controlling supply / stop of power supply is provided, and when the broadcast time determination means determines that it is outside the broadcast time, the power supply control means supplies power. Stop the supply of. Further, for example, as described in claim 4, the receiving means receives a character broadcast radio wave as the broadcast radio wave.

[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 broadcast information storage means is also provided, and the broadcast information storage means stores, for each of a plurality of broadcast programs received by the reception means, the broadcast time from the start to the end of each broadcast program as broadcast time information. .. When the desired broadcast program is selected by the channel selection instruction means, the broadcast time determination means determines from the stored contents of the broadcast information storage means whether the selected program is within the broadcast time, and outside the broadcast time. If it is determined that there is, the output means outputs the notification information indicating that it is outside the broadcast time. Therefore, it is possible to easily know whether or not the selected program is within the broadcast time from this notification information, and when it is outside the broadcast time, the program selection can be changed without an unnecessary waiting time. Or you can turn off the power. As a result, it is possible to improve the usability and convenience of the broadcast receiving apparatus and save power consumption. When it is determined that the selected program is out of the broadcasting time, the notification to that effect is given as described in claim 2, and the program is switched to another program to be received, or claim 3 is set. As described, since the power can be automatically turned off, the usability and convenience of the broadcast receiving device can be further improved, and the power consumption can be further saved.
According to the invention described in claim 4, in the broadcast receiving device capable of receiving the teletext, when the selected program is outside the broadcast time, a notification to that effect can be given, and
Since you can switch programs and turn off the power automatically, you can prevent long-term reception in the "data waiting" state and operations such as decoding of character data. Therefore, the power consumption can be further reduced.

[0006]

EXAMPLES The present invention will be specifically described below based on examples. 1 to 4 are diagrams showing an embodiment of a broadcast receiving apparatus according to the present invention, which is applied to a teletext receiving apparatus. 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, a text VRAM 7, a CG 8, and a display. Controller 9, display unit 10, CPU 11, memory 1
2, keyboard 13, original signal generator 14, frequency dividing circuit 15
And a power supply device 16 and the like. This broadcast receiving device 1
Is capable of receiving text broadcasts and broadcasts in which programs of specific items are repeatedly performed.

The power supply device 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 16 has a CP
The control signal from U11 is input, and the power supply device 16 starts and stops the power supply by 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
The ROM is composed of an OM, a RAM and the like, and the ROM stores a program as the broadcast receiving device 1, a later-described program for determining whether it is during broadcast time, a program for notifying outside broadcast time, etc. The channel number and the frequency corresponding to the channel number are stored. RAM is used as work memory,
The microprocessor controls each unit of the broadcast receiving apparatus 1 according to the program in the ROM, and the broadcast receiving apparatus 1
To function as. The CPU 11 controls the tuner 3 and the microprocessor 5 in accordance with the program selected by the keyboard 13 to select the selected program, and retrieves the broadcast time information stored in the memory 12 as described later. Then, it is determined whether or not the selected program is within the broadcast time, and when it is outside the broadcast time, the notification information to that effect is displayed and output on the LCD 23. This notification information is C
It is stored in the ROM or the like of the PU 11. Therefore, C
When the program is selected, the PU 11 determines whether or not the broadcast program stored in the memory 12 as the broadcast information storage means corresponding to the selected broadcast program is within the broadcast time, When it is outside, it functions as a broadcast time determination means for outputting notification information to that effect or for selecting another program. Further, when the selected program is outside the broadcast time, the CPU 11 controls the power supply device 16 to stop the power supply of the broadcast receiving device 1 and functions as a power supply control means.

The keyboard (tuning instruction means) 13 is shown in FIG.
, The item selection key 31, the program selection key 32,
Channel selection key 33, power on / off key (ON
/ OFF) 34, a feed scroll key 35, a return scroll key 36, a start time designation key 37, an end time designation key 38, a registration key 39, etc., and perform various operations of the broadcast receiving apparatus 1. The item key 31 can be used to select the item of the program to be selected in advance (for example, the item indicating the type of program such as weather, traffic information, stock price information, news, and cooking), and the channel key 33 can be used to select the channel of the broadcasting station. can do. 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. Scroll key 3
5 and 36 are C when the respective item keys 31 are pressed.
A plurality of items stored in the ROM of the PU 11 in advance 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 start time designation key 37, the end time designation key 38 and the registration key 39 are keys used when registering the broadcast time information of each program in the memory 12. That is,
With the start time designation key 37, the above channel selection key 3
3 and the program selection key 32 or the like to set the broadcast start time designation mode of the program, and the end time designation key 38 to set the broadcast end time designation mode of the selected program. The registration key 39 is used to instruct the memory 12 to register the broadcast start time and broadcast end time set in each of the above modes.

The memory (broadcast information storage means) 12 is an RA.
It is composed of M etc. and stores the broadcast time information. That is,
As shown in FIG. 3, the memory 12 is roughly divided into areas for each item, and the area of each item is stored as a selected program pair in which a channel number and a program are associated with each other. A start time and an end time of the program are stored as broadcast time information for each program in each selected program pair, and a plurality of selected program pairs can be registered for each item. The items, channels, and programs can be registered in the memory 12 by operating the keyboard 13. That is, when the item key 31 is pressed, only one item is read from the ROM and displayed on the LCD 23.
When the displayed item is not the desired item, the scroll keys 35 and 36 are operated to switch the sequentially displayed items, and when the desired item is displayed, the item is selected. When the item is selected, the CPU 11 stores the selected item in a predetermined item storage area of the memory 12. A plurality of items can be registered in the memory 12 by sequentially performing the above processing for the items to be registered. When registering a channel and a program corresponding to each item, similarly, the channel key 33 or the program key 32 is turned on, and the scroll channel 35 or 36 is used to display the desired channel number or program on the LCD 23. When the corresponding channel number or program is displayed, the channel number or program is selected. By selecting an item for the selected channel number or program, a set of the selected channel number and program is stored in the memory 12 as a selected program pair in association with the item. For the selected program pair thus selected, the broadcast start time and broadcast end time of that program are then registered. That is, when the start time designation mode is set by the start time designation key 37 and the start time is input, the registration key 39 is turned on and the memory 1
Store in 2. Further, when the end time designation mode is set by the end time designation key 38 and the end time is input, the registration key 39 is pushed and stored in the memory 12. Needless to say, the registration of channel numbers and programs and the registration of start times and end times are not limited to the above method. The broadcast information can be registered by the listener in this manner, but can also be registered in the broadcast receiving apparatus 1 in advance as system information. In particular, by using a memory that can be attached to and detached from the broadcast receiver 1 such as an IC coin memory, the memory 12 storing broadcast information is supplied from the manufacturer side and the memory 12 is replaced. The broadcast information may be updated.

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,
It is used for various controls such as on / off control of the power supply of the broadcast receiving apparatus 1.

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 device 1 uses the CPU
11, the clock signal input from the frequency dividing circuit 15 is used to measure the current time, the display position is determined, and the text V
Information on the current time is output to the corresponding position in the RAM 7.
Information on the current time is output from the text VRAM 7 to the display controller 9 via the CG 8 to display the current time at a predetermined position on the LCD 23.

In this state, when the on / off key 34 of the keyboard 13 is turned on, the CPU 11 causes the power supply unit 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 content,
By operating the keyboard 13, the display content can be changed.

A normal display content changing operation is performed by operating the program key 32 or the channel key 33 of the keyboard 13. In other words, to change the program,
By turning on the program key 32 and operating the scroll keys 35 and 36, the programs can be changed in sequence. When changing the channel, after turning on the channel key 33, the scroll keys 35 and 36 are operated. This allows you to change channels. At this time, C
The PU 11 sets the selected channel number to the tuner 3
To output the radio wave of the corresponding channel and output the program to the microprocessor 5 to cause the microprocessor 5 to select a video signal corresponding to the program for decoding and display processing. When the program of the desired channel is displayed, the listener has completed the selection.

However, conventionally, when the selected program is outside the broadcast time of the program, the program is not normally displayed and output on the LCD 23, and the listener sees the display output and sees whether the reception state is bad or not. It is judged whether the program is outside the broadcast time, and the program is changed or the power is turned off. With this display output alone, it is not possible to properly judge whether the reception status is bad or it is outside the broadcast time of the program,
Useless adjustments of the reception state are made, and the waiting time is reduced. In particular, in the broadcast receiving apparatus 1 which receives a teletext, even when the reception state is poor or even outside the broadcast time, the display output of "waiting for data" is simply performed.

Therefore, in the broadcast receiving apparatus 1, when a program is selected, it is checked whether the selected program is within the broadcast time, and if it is outside the broadcast time, notification information to that effect is output. By doing so, it is possible to know that it is outside the broadcast time.

That is, as shown in FIG.
Checks whether the power is turned on or the program is switched during reception (step S
1) When the power is turned on or the program is switched, the data of the corresponding channel and program are read from the memory 12, and the tuner 3 and the microprocessor 5 are controlled to select a channel (steps S2, S).
3). Next, the time data (broadcast time information) of the corresponding selected program pair is read from the memory 12 (step S4), and it is checked whether or not the current time is within the broadcast time of the program (step S5). If it is within the broadcast time, the normal reception process is performed and the process ends. When it is outside the broadcast time, notification information to that effect, for example, a message "outside the broadcast time", a notification by voice, etc. is output to the LCD 23 (step S6). This notification information is the RO of the CPU 11.
It is stored in advance in M or the like, and the CPU 11 reads out this notification information and sends it to the LCD 2 via the text VRAM 7.
3 is displayed and output.

When the notification information is displayed and output, the CPU 1
1 searches the memory 12 to see if another selected program pair is registered in the same item as the selected selected program pair (step S7). When no other selected program pair is registered in the same item, the processing is terminated as it is or the power supply device 16 is instructed to stop the power supply and the power is turned off. When another selected program pair is registered in the same item, the channel and program data of the next selected program pair registered in the same item are read (step S
8) Then, returning to step S3, the tuner 3 and the microprocessor 5 are selected (step S8). After that, similarly, it is checked whether the selected program is within the broadcast time, and if it is not within the broadcast time, it is checked whether another selected program pair is registered in the item (steps S4 to S7). When all the programs registered in the item are out of the broadcasting time, the process is ended. Also in this case, the power supply device 16 may be controlled to turn off the power of the broadcast receiving device 1.

In the above embodiment, when switching to another program when the selected program is outside the broadcast time, switching is performed only when there is another program of the same item as that program. The present invention is not limited to this, and program switching processing may be performed even if items are different.

As described above, it is checked whether the selected program is within the broadcast time, and if it is outside the broadcast time, the notification information to that effect can be output. It can be easily known, and when it is outside the broadcasting time, the channel selection of the program can be changed or the power can be turned off without an unnecessary waiting time. as a result,
It is possible to improve the usability and convenience of the broadcast receiving device and save power consumption.

Further, when it is judged that the selected program is out of the broadcasting time, a notification to that effect is given, and it is possible to switch to another program for reception or to turn off the power automatically. The usability and convenience of the receiving device can be further improved, and the power consumption can be further saved.

Further, in the broadcast receiving apparatus capable of receiving the teletext, when the selected program is out of the broadcast time, a notice to that effect is given and the program is switched to another program.
You can turn off the power automatically, so "wait for data"
In this state, it is possible to prevent the operation such as decoding processing of character data by continuing the reception for a long time, which can improve the usability and convenience of the broadcast receiving device and reduce the power consumption. Further savings can be achieved.

[0034]

According to the invention of claim 1, it is possible to check whether the selected broadcast program is within the broadcast time, and if it is outside the broadcast time, it is possible to output the notification information to that effect. , It is possible to easily know that it is outside the broadcast time, and when it is outside the broadcast time, it is possible to change the channel selection of the program or turn off the power without waiting unnecessarily. As a result, it is possible to improve the usability and convenience of the broadcast receiving apparatus and save power consumption.

According to the second aspect of the present invention, when it is judged that the selected broadcast program is out of the broadcast time, a notification to that effect can be given and the program can be switched to another program for reception. It is possible to further improve the usability and convenience of the broadcast receiving device.

According to the third aspect of the present invention, when it is determined that the selected broadcast program is out of the broadcast time, a notification to that effect can be given and the power can be automatically turned off. Can be further saved.

According to the invention described in claim 4, in the broadcast receiving device capable of receiving the teletext, when the selected program is out of the broadcast time, a notification to that effect is given, and
Since it is possible to switch to another program and automatically turn off the power, it is possible to prevent long-term reception in the "data waiting" state and operations such as character data decoding processing. Therefore, it is possible to improve the usability and convenience of the broadcast receiving apparatus and further reduce power consumption.

[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 broadcast time information in the memory of FIG.

FIG. 4 is a flowchart showing broadcast time notification processing and channel selection switching processing.

[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 (4)

[Claims] 1. 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 each broadcast for each of a plurality of broadcast programs received by the receiving means. Broadcast information storage means capable of storing the broadcast time from the start to the end of the program as broadcast time information, a channel selection instruction means for instructing channel selection of a desired broadcast program, and a program instructed by the channel selection instruction means. When the channel is selected, the broadcast information storage means is searched to determine whether the broadcast program stored in the broadcast information storage means corresponding to the selected broadcast program is within the broadcast time. A broadcast receiving device comprising: a broadcast time discriminating means for outputting notification information to that effect when it is outside the broadcast time. 2. The broadcast time discriminating means, when the selected broadcast program is outside the broadcast time, outputs the notification information to that effect, and at the same time, the other broadcast programs stored in the broadcast information storage means. 2. The broadcast receiving device according to claim 1, wherein the broadcast receiving apparatus is switched to the channel and is selected by the channel selection means. 3. A power supply control means for controlling supply / stop of power supply is provided, and when the broadcast time determination means determines that it is outside the broadcast time, the power supply control means stops the power supply. The broadcast receiving device according to claim 1 or 2. 4. The receiving means, as the broadcast radio wave,
The broadcast receiving device according to claim 1, claim 2, or claim 3, which receives a character broadcast radio wave.