JP2000308026A - Data broadcast receiver and tuner controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a viewer to instruct a data broadcast receiver to start the accumulation of data broadcast at high speed by a simple method even when the viewer does not know in advance the channel number upon which the data broadcast is multiplexed. SOLUTION: Upon receiving an instruction to start the accumulation of data broadcast from a viewer, a data broadcast retrieving section 12 instructs a frequency setting section 11 to set a predetermined frequency and a tuber section 2 to output the data broadcast existing in the section 2 to a data broadcast accumulating section 3. The frequency setting section 11 instructs the set frequency to the tuber section 2. A data broadcast extracting section 13 confirms whether or not data broadcast is multiplexed upon the channel received by means of the tuner section 2 and informs the retrieving section 12 of the confirmed result. The tuner section 2 receives broadcast radio waves and outputs the data broadcast multiplexed upon the received channel to the accumulating section 3 following the instruction from the retrieving section 12. The accumulating section 3 accumulates the data broadcast.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data broadcast receiving apparatus and a tuner control apparatus, and more particularly, to a data broadcast receiving instruction for starting data broadcast by a simple method and efficiently storing data broadcast contents. The present invention relates to a broadcast receiving device and a tuner control device.

[0002]

2. Description of the Related Art In recent years, "data broadcasting" for transmitting data such as characters and images using the gap between radio waves of terrestrial television broadcasting and satellite television broadcasting has been performed. For example, ADAMS (TV-Asahi DATA and Multimedia Servic) broadcasted by the TV Asahi Broadcasting Network is a typical example of data broadcasting using a gap between radio waves of terrestrial television broadcasting (hereinafter referred to as terrestrial data broadcasting).
e) and a data parade broadcast by TBS.

In this data broadcasting, as described above, data is multiplexed in gaps between television broadcast signals (for example, in a vertical flyback period in terrestrial data broadcasting). It is necessary to receive the data broadcast separately from the reception of the John broadcast. Hereinafter, a conventional data broadcast receiving apparatus for receiving a data broadcast will be briefly described with reference to FIGS.

FIG. 15 is a block diagram showing an example of the configuration of a conventional data broadcast receiving device. In FIG. 15, a conventional data broadcast receiving device includes a tuner control unit 101,
It includes a tuner unit 102, a data broadcast storage unit 103, a video data generation unit 104, and a video display unit 105.
Tuner section 102 receives a broadcast wave. The tuner control unit 101 receives the instruction from the viewer, and
02 is controlled. The data broadcast storage unit 103 stores the data of the data broadcast extracted by the tuner unit 102. The video data generation unit 104 generates video data from the data stored in the data broadcast storage unit 103. The video display unit 105 converts the video data generated by the video data generation unit 104 into a video signal and displays the video signal on a CRT, LCD, or the like as visible information.

Next, the operation performed by the conventional data broadcast receiving apparatus will be described with reference to FIG. FIG.
5 is a flowchart showing a data broadcast receiving process performed by a conventional data broadcast receiving device. Viewers first enter the channel number on which the data broadcast is multiplexed into the broadcast wave,
Specify to the tuner control unit 101 (step S5
01). This means that the viewer needs to know in advance by some method the channel number on which the data broadcast is multiplexed. The tuner control unit 101 instructs the tuner unit 102 to set a tuner at a frequency corresponding to the channel number specified by the viewer. Then, the tuner unit 102 performs tuning at the frequency specified by the tuner control unit 101 (step S502). Next, when the specified channel is received, the viewer instructs the tuner control unit 101 to start storing the data broadcast (step S50).
3). The tuner control unit 101 receives the instruction from the viewer and instructs the tuner unit 102 to extract the data broadcast multiplexed on the broadcast wave of the reception channel. Here, the tuner unit 102 receives the instruction for the extraction, and checks whether or not the data broadcast is multiplexed on the broadcast wave of the reception channel (step S50).
4). If it is determined in step S504 that the data broadcast is multiplexed, the tuner unit 102 extracts the data of the multiplexed data broadcast and outputs the data to the data broadcast storage unit 103. Data broadcast storage unit 103
Accumulates the data broadcast data output by the tuner unit 102 (step S505). Step S above
If it is determined in 504 that the data broadcast is not multiplexed, the process returns to step S501, and the tuner unit 102 waits for the viewer to specify another channel number.

[0006]

As described above, in the conventional data broadcast receiving apparatus, since the viewer specifies the channel number on which the data broadcast is multiplexed, the viewer is required to perform some method in advance. Therefore, it is necessary to know the channel number on which the data broadcast is being broadcast. However, in general, the channel number on which data broadcasting is multiplexed differs for each broadcasting station in each region. For this reason, for example, when carrying the data broadcast receiving device to another region and using it, the viewer himself has to check a new channel number of the data broadcast and set the channel again, and And inconvenience. Also, as described above, when the viewer specifies a channel number on which the data broadcast is not multiplexed,
Since it is necessary to give a channel number instruction and a data broadcast storage start instruction again, there is a problem that the operation becomes complicated.

The data broadcast is stored in the data broadcast storage unit 10.
In order to confirm whether or not the data has been correctly stored in the data broadcast, the content of the data broadcast must be output as visible information on a display screen and determined after a certain period of time from the start of the storage.
There was a problem that the time to check whether data broadcasting was correctly stored was too long.

[0008] Further, since data broadcasting is performed by multiplexing it on the radio wave of a television broadcast, data loss is likely to occur on the transmission path of the radio wave.
There is a problem that it is difficult to accumulate correct data broadcast data only by using the data.

[0009] Therefore, an object of the present invention is to provide a system which does not need to know in advance the channel number on which a data broadcast is multiplexed.
To provide a data broadcast receiving device and a tuner control device that enable a viewer to instruct an accumulation start of a data broadcast at a high speed by a simple method, and that can confirm in a short time whether or not the data broadcast is correctly accumulated. It is. It is another object of the present invention to provide a data broadcast receiving device and a tuner control device that improve the accuracy of data broadcast information storage.

[0010]

Means for Solving the Problems and Effects of the Invention A first invention is a data broadcast receiving apparatus for receiving a broadcast wave in which a data broadcast is multiplexed, wherein the data broadcast receiving apparatus receives a data broadcast storage command specified by a viewer. On the other hand, an arbitrary frequency is instructed to the frequency setting means, the presence or absence of the data broadcast is searched according to the extraction result received from the data broadcast extracting means, and if there is a data broadcast, the tuner means is instructed to store the data, and the data broadcast is performed. If there is no data, a data broadcasting search means for instructing the frequency setting means again at a different frequency, a frequency setting means for setting a frequency of a broadcast radio wave received by the tuner means in accordance with an instruction from the data broadcasting search means, Means for detecting whether or not a data broadcast is multiplexed in the broadcast wave received by the means, and outputting a result of the detection to the data broadcast search means; Receiving the broadcast wave of the frequency set by the transmission / extraction means and the frequency setting means, and outputting the data of the data broadcast multiplexed to the received broadcast wave to the data broadcast storage means according to the instruction of the data broadcast search means; The tuner includes a tuner and a data broadcast storage for storing data of data broadcast output from the tuner.

[0011] As described above, according to the first aspect, upon receiving a data broadcast storage start command instructed by a viewer, receivable frequencies are searched in order, and a channel on which the data broadcast is multiplexed is searched. The data is automatically detected and the data of the data broadcast of the channel is stored in the data broadcast storage means.
This eliminates the need for the viewer to know in advance the channel number on which the data broadcast is multiplexed, and can instruct the start of data broadcast storage by a simple operation.

A second invention is an invention according to the first invention, wherein specific information (reception channel number, reception channel number, etc.) of the multiplexed broadcast wave of the data broadcast searched by the data broadcast search means is provided. And a data broadcast search unit that stores specific information in the information storage unit when a viewer receives a data broadcast storage command. And instructing the frequency setting means to set a frequency using the specific information.

As described above, according to the second aspect, the first aspect
In the invention, the data of the detected data broadcast is stored in the data broadcast storage means and the specific information is stored in the information storage means. This allows the viewer to instruct the start of data broadcast storage at a high speed with a simpler operation.

[0014] A third invention is an invention according to the second invention, wherein, when the specific information is stored in the information storage means, display data for indicating the existence of the data broadcast is generated,
It further comprises a data broadcast menu generating means for outputting as visible information on an arbitrary display screen.

As described above, according to the third aspect, the second aspect
In the invention, the presence of the data broadcast is displayed on the screen based on the specific information stored in the information storage means. Thus, in addition to the above effects, it is possible to immediately confirm whether the data of the data broadcast is correctly stored in the data broadcast storage unit.

A fourth invention is an invention according to the second invention, wherein when the same data broadcast is multiplexed on a plurality of broadcast waves of different frequencies, a plurality of broadcast waves received by the tuner means are transmitted. There is further provided reception status monitoring means for monitoring each reception status and instructing the data broadcast search means to store the data broadcast of the broadcast wave having the best reception status in the data broadcast storage means.

As described above, according to the fourth aspect, the second aspect
In the invention of the present application, when the same data broadcast is transmitted by a plurality of broadcast waves of different frequencies, the receiver receives a data broadcast storage start instruction instructed by the viewer, searches the receivable frequencies in order, and executes the data broadcast. The multiplexed channel is automatically detected, the data broadcast data of the channel with the best reception condition is stored in the data broadcast storage means, and a plurality of specific information is stored in the information storage means. Thus, in addition to the above effects, if the accumulation state of the currently received data broadcast is not good, it is possible to select a data broadcast of a different frequency stored in the information storage means. Therefore, it is less susceptible to data loss occurring in the transmission path of the radio wave, and correct data broadcast can be stored.

A fifth invention is a data broadcast receiving apparatus for receiving broadcast waves in which the same data broadcast is multiplexed on a plurality of different frequencies. A plurality of different frequencies are instructed to the setting means, and the presence or absence of the data broadcast is respectively searched according to the plurality of extraction results received from the data broadcast extracting means. If there is a data broadcast, the data is transmitted to one or more corresponding tuner means. A data broadcast search means for instructing data accumulation, and if there is no data broadcast, a different frequency to the frequency setting means again, and a first to Nth (N is 2) Frequency setting means for setting the frequency of the broadcast radio wave received by each of the tuner means (the above integer; the same applies hereinafter), and the first to Nth tuner means Each of the data broadcast extracting means for detecting whether or not the data broadcast is multiplexed on the received broadcast radio wave and outputting the result of the detection to the data broadcast search means, and one of the data broadcast extracting means set by the frequency setting means. Receiving the broadcast wave of the frequency, and outputting the data of the data broadcast multiplexed to the received broadcast wave to the first to Nth storage means, respectively, according to the instruction of the data broadcast search means. , Tuner means, first to N-th storage means for temporarily storing data of data broadcast output from the first to N-th tuner means, and first to N-th storage means for respectively storing The stored data selection unit compares the received data with each other, and outputs the data broadcast data having the best reception status to the data broadcast storage unit, and the data broadcast data output by the stored data selection unit. And a data broadcast storage means for product.

As described above, according to the fifth aspect, when a plurality of receiving configurations (tuners and accumulators) are provided and a plurality of identical data broadcasts are transmitted by broadcast waves of different frequencies, In response to a data broadcast storage start command specified by, the receivable frequencies are searched in order, and data broadcast data of different frequencies are automatically extracted in multiple reception configurations, and the reliability of the extracted data is checked. Judgment is made and data with the best reception status is accumulated. This eliminates the need for the viewer to know in advance the channel number on which the data broadcast is multiplexed, and can instruct the start of data broadcast storage by a simple operation. Further, it is less susceptible to data loss occurring in the transmission path of radio waves, and correct data broadcast can be stored.

[0020] A sixth invention is an invention according to the fifth invention, wherein, for a multiplexed broadcast wave of the data broadcast searched by the data broadcast search means, an information storage for storing specific information of the broadcast wave. Further comprising: a data broadcast search unit, wherein when the viewer is instructed by the data broadcast storage command, when the specific information is stored in the information storage unit,
It is characterized by instructing frequency setting to the frequency setting means using the specific information.

As described above, according to the sixth aspect, the fifth aspect
In the invention, the data of the detected data broadcast is stored in the data broadcast storage means and the specific information is stored in the information storage means. This makes it possible to instruct the start of data broadcast storage at a high speed with a simpler operation.

A seventh invention is the invention according to the sixth invention, wherein, when the specific information is stored in the information storage means, display data that clearly indicates the existence of the data broadcast is generated,
It further comprises a data broadcast menu generating means for outputting as visible information on an arbitrary display screen.

As described above, according to the seventh aspect, the sixth aspect
In the invention, the presence of the data broadcast is displayed on the screen based on the specific information stored in the information storage means. Thus, in addition to the above effects, it is possible to immediately confirm whether the data of the data broadcast is correctly stored in the data broadcast storage unit.

An eighth invention is a data broadcast receiving apparatus for receiving a broadcast wave in which the same data broadcast is multiplexed on a plurality of broadcast waves of different frequencies, wherein a channel number of the broadcast wave designated by a viewer is provided. And a tuner control means for setting the frequency of the broadcast wave received by the tuner means in response to the data broadcast storage command, and a broadcast wave of any one of the frequencies set by the tuner control means. A first method for outputting the multiplexed data broadcast data to the first to Nth storage means, respectively.
To N-th tuner means, first to N-th storage means for temporarily storing data of data broadcasts respectively output by the first to N-th tuner means, and first to N-th storage means And a data broadcasting unit for comparing the data stored respectively and outputting the data broadcasting data having the best reception condition to the data broadcasting storing unit, and a data broadcasting storing the data broadcasting data output from the stored data selecting unit. Storage means.

As described above, according to the eighth aspect, when a plurality of reception structures are provided and the same data broadcast is transmitted by a plurality of broadcast waves of different frequencies, the channel number designated by the viewer is designated. In response to a data broadcast storage start command, automatically extract data of data broadcasts with different frequencies in multiple reception configurations, determine the reliability of the extracted data, and store the data with the best reception status I do. This makes it less susceptible to data loss that occurs in the transmission path of the radio wave, and correct data broadcast information can be stored.

A ninth invention is a tuner control device for controlling a tuner means for receiving a broadcast wave on which a data broadcast is multiplexed, wherein the tuner control apparatus sends a data broadcast storage command instructed by a viewer to a frequency setting means. Instruct an arbitrary frequency, search for the presence or absence of a data broadcast according to the extraction result received from the data broadcast extracting means, and instruct the tuner means to store data if there is a data broadcast; A data broadcast search means for instructing the frequency setting means again at a different frequency; a frequency setting means for setting a frequency of a broadcast wave received by the tuner means in accordance with an instruction from the data broadcast search means; and a broadcast wave received by the tuner means. Data broadcast extracting means for detecting whether or not a data broadcast is multiplexed on the data broadcast and outputting the result of the detection to the data broadcast search means Equipped with a.

As described above, according to the ninth aspect, in response to a data broadcast storage start command instructed by the viewer, receivable frequencies are searched in order, and the channel on which the data broadcast is multiplexed is searched. It is automatically detected and the data of the data broadcast of the channel is stored. This eliminates the need for the viewer to know in advance the channel number on which the data broadcast is multiplexed, and can instruct the start of data broadcast storage by a simple operation.

A tenth invention is an invention according to the ninth invention, wherein, for a multiplexed broadcast wave of the data broadcast searched by the data broadcast search means, an information storage for storing specific information of the broadcast wave. Means for setting a frequency in the frequency setting means using the specific information when specific information is stored in the information storage means when the data broadcast storage instruction is instructed by the viewer. Is indicated.

As described above, according to the tenth aspect of the present invention, in the ninth aspect, an instruction to store the data of the detected data broadcast is stored, and the specific information is stored in the information storage means. This allows the viewer to instruct the start of data broadcast storage at a high speed with a simpler operation.

An eleventh invention is an invention according to the tenth invention, wherein, when specific information is stored in the information storage means, display data indicating the existence of a data broadcast is generated, and an arbitrary display is performed. The information processing apparatus further includes a data broadcast menu generating unit that outputs the data broadcast menu as visible information.

As described above, according to the eleventh aspect, in the tenth aspect, the presence of the data broadcast is displayed on the screen based on the specific information stored in the information storage means. Thereby, in addition to the above effects, it can be immediately confirmed whether or not the data of the data broadcast has been correctly stored.

A twelfth invention is a invention according to the tenth invention, wherein when the same data broadcast is multiplexed on a plurality of broadcast radio waves of different frequencies, a plurality of broadcast radio waves received by the tuner means are transmitted. There is further provided reception status monitoring means for monitoring each reception status and instructing the data broadcast search means to store the data broadcast of the broadcast wave having the best reception status in the data broadcast storage means.

As described above, according to the twelfth aspect, in the tenth aspect, when the same data broadcast is transmitted by a plurality of broadcast waves of different frequencies, the accumulation of the data broadcast designated by the viewer is started. Receiving the command, it sequentially searches for receivable frequencies, automatically detects the channel on which the data broadcast is multiplexed, instructs data broadcast data of the channel with the best reception status to be stored, and stores information. A plurality of specific information is stored in the means. Thus, in addition to the above effects, if the accumulation state of the currently received data broadcast is not good, it is possible to select a data broadcast of a different frequency stored in the information storage means. Therefore, it is less susceptible to data loss occurring in the transmission path of the radio wave, and correct data broadcast can be stored.

A thirteenth invention is a tuner control device for controlling a plurality of tuner means for receiving a broadcast wave in which the same data broadcast is multiplexed on a plurality of different frequencies, wherein the tuner control device controls the data broadcast designated by a viewer. For a storage instruction,
A plurality of different frequencies are instructed to the frequency setting means, and the presence or absence of a data broadcast is respectively searched according to a plurality of extraction results received from the data broadcast extracting means. If there is a data broadcast, one or more corresponding tuner means are provided. A data broadcast search means for instructing the frequency setting means to again indicate a different frequency to the frequency setting means when there is no data broadcast, and a broadcast received by the plurality of tuner means in accordance with the instruction from the data broadcast search means. Frequency setting means for setting the frequency of the radio wave, and data for detecting whether or not the data broadcast is multiplexed on the broadcast radio waves respectively received by the plurality of tuner means, and outputting the detection result to the data broadcast search means. Broadcast extracting means.

As described above, according to the thirteenth aspect, when a plurality of receiving structures are provided and the same data broadcast is transmitted by a plurality of broadcast waves of different frequencies, storage of the data broadcast designated by the viewer is performed. In response to the start command, receivable frequencies are searched in order, data of data broadcasts of different frequencies are automatically extracted in a plurality of reception configurations, and the reliability of the extracted data is determined. Accumulate good data. This eliminates the need for the viewer to know in advance the channel number on which the data broadcast is multiplexed, and can instruct the start of data broadcast storage by a simple operation. Further, it is less susceptible to data loss occurring in the transmission path of radio waves, and correct data broadcast can be stored.

[0036] A fourteenth invention is an invention according to the thirteenth invention, wherein, for a multiplexed broadcast wave of the data broadcast searched by the data broadcast search means, an information storage for storing specific information of the broadcast wave. Means for setting a frequency in the frequency setting means using the specific information when specific information is stored in the information storage means when the data broadcast storage instruction is instructed by the viewer. Is indicated.

As described above, according to the fourteenth aspect, in the thirteenth aspect, an instruction to store the data of the detected data broadcast is stored, and the specific information is stored in the information storage means. This makes it possible to instruct the start of data broadcast storage at a high speed with a simpler operation.

A fifteenth invention is a invention according to the fourteenth invention, wherein, when the specific information is stored in the information storage means, display data indicating the existence of the data broadcast is generated, and an arbitrary display is performed. The information processing apparatus further includes a data broadcast menu generation unit that outputs the information as visible information on a screen.

As described above, according to the fifteenth aspect, in the fourteenth aspect, the presence of the data broadcast is displayed on the screen based on the specific information stored in the information storage means. Thereby, in addition to the above effects, it can be immediately confirmed whether or not the data of the data broadcast has been correctly stored.

[0040]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Each embodiment of the present invention will be described below.
This will be described in detail with reference to the drawings. (First Embodiment) FIG. 1 is a block diagram showing a configuration of a data broadcast receiving apparatus according to a first embodiment of the present invention. 1, the data broadcast receiving apparatus according to the first embodiment includes a tuner control unit 1, a tuner unit 2, a data broadcast storage unit 3, a video data generation unit 4, and a video display unit 5. The tuner control unit 1 includes a frequency setting unit 11
, A data broadcast search unit 12 and a data broadcast extraction unit 13.

First, each configuration of the data broadcast receiving apparatus according to the first embodiment will be described. The tuner control unit 1 controls the tuner unit 2 in response to an instruction from the viewer to start storing data broadcast. Data broadcast search unit 12
Instructs the frequency setting unit 11 to set a predetermined frequency, and instructs the tuner unit 2 to output data of data broadcast to the data broadcast storage unit 3. The frequency setting unit 11 instructs the set frequency to the tuner unit 2. The data broadcast extraction unit 13 includes the tuner unit 2
Confirms whether or not the data broadcast is multiplexed on the broadcast wave of the received channel, and notifies the data broadcast search unit 12. The tuner unit 2 receives the broadcast wave and outputs data of the data broadcast multiplexed on the reception channel to the data broadcast storage unit 3 according to the instruction of the tuner control unit 1. The data broadcast storage unit 3 stores data of data broadcast output from the tuner unit 2. The video data generation unit 4 generates video data from the data stored in the data broadcast storage unit 3. The video display unit 5 converts the video data generated by the video data generation unit 4 into a video signal,
And displayed as visible information on an LCD or the like.

Next, a data broadcast receiving process (data broadcast storage process) performed by the data broadcast receiving device according to the first embodiment will be described with reference to FIG. FIG. 2 shows the first embodiment of the present invention.
It is a flowchart which shows the procedure of the data broadcast accumulation | storage process performed by the data broadcast receiving apparatus which concerns on embodiment.

First, the viewer instructs the tuner control unit 1 to start storing data broadcast (step S101). At this time, the viewer does not need to know on which channel number the data broadcast is multiplexed. In the tuner control unit 1, when receiving an instruction from the viewer, the data broadcast search unit 12 selects one of the receivable frequencies and sets the selected frequency in the frequency setting unit 11. To instruct. Frequency setting unit 11
Indicates to the tuner unit 2 the frequency set under the instruction of the data broadcast search unit 12. And the tuner unit 2
Tuning is performed at the frequency specified by the frequency setting unit 11 (step S102). When the tuning is performed, the data broadcast extracting unit 13 confirms whether or not the data broadcast is multiplexed on the broadcast wave of the received channel (step S103), and notifies the data broadcast search unit 12 of the tune.

Here, in step S103,
When it is confirmed that the data broadcast is multiplexed, the data broadcast search unit 12 extracts the data of the data broadcast multiplexed on the broadcast wave of the receiving channel to the tuner unit 2 and (Step S105). The data broadcast storage unit 3 stores data of data broadcast output from the tuner unit 2. On the other hand, if it is determined in step S103 that the data broadcast is not multiplexed, the data broadcast search unit 12
Selects another one of the receivable frequencies and instructs the frequency setting unit 11 to set the selected frequency again (step S104). In response to this, similarly to the above, the frequency setting unit 11 instructs the tuner unit 2 again on the set frequency, the tuner unit 2 tunes again at the frequency, and the data broadcast extraction unit 13 transmits the broadcast radio wave of the reception channel. It is again confirmed whether or not the data broadcast is multiplexed (step S103), and the data broadcast is notified to the data broadcast search unit 12.

As described above, in the data broadcast receiving process performed by the data broadcast receiving apparatus according to the first embodiment, a receivable frequency is searched in order in response to a data broadcast storage start instruction instructed by a viewer. (Note that the search can be performed arbitrarily regardless of the ascending order, descending order, or order of the frequency), the channel on which the data broadcast is multiplexed is automatically detected, and the data of the data broadcast of the channel is searched. The data is stored in the data broadcast storage unit 3.

Hereinafter, the frequency band of the received radio wave is 97.25.
MHz, 171.25 MHz, 183.25 MHz 3
In a case where there is only one and data broadcast (here, ADAMS) is multiplexed at a frequency of 183.25 MHz (for example, multiplexed during a vertical blanking period of a video carrier), This will be specifically described.

In this case, the data broadcast search unit 12 instructs the frequency setting unit 11 to first set the frequency at 97.25 MHz. On the other hand, the frequency setting unit 11 sets the frequency 97.25 MHz to the tuner unit 2.
, And the tuner unit 2 performs tuning at a frequency of 97.25 MHz. Here, the data broadcast extraction unit 13
Confirms that the data broadcast is not multiplexed on the broadcast wave of the channel having the frequency of 97.25 MHz, and notifies the data broadcast search unit 12 of the fact. In response to this content,
Next, the data broadcast search unit 12 instructs the frequency setting unit 11 to perform frequency setting at a frequency of 171.25 MHz. On the other hand, the frequency setting unit 11 instructs the tuner unit 2 at a frequency of 171.25 MHz, and the tuner unit 2 performs tuning at the frequency of 171.25 MHz. Also here, the data broadcast extracting unit 13 confirms that the data broadcast is not multiplexed on the broadcast wave of the channel having the frequency of 171.25 MHz, and notifies the data broadcast search unit 12 of the fact. Further, in response to this content, the data broadcast search unit 12 next sets the frequency setting unit 11
Is instructed to perform frequency setting at a frequency of 183.25 MHz. On the other hand, the frequency setting unit 11
The tuner unit 2 is instructed to the frequency 183.25 MHz, and the tuner unit 2 performs tuning at the frequency 183.25 MHz. At this time, the data broadcast extraction unit 13 confirms that the data broadcast is multiplexed on the broadcast wave of the channel having the frequency of 183.25 MHz, and notifies the data broadcast search unit 12 of the fact. The data broadcast search unit 12
In response to the fact that the data broadcast is multiplexed, the tuner unit 2
Is instructed to extract data of the data broadcast multiplexed on the broadcast wave of the reception channel and output the data to the data broadcast storage unit 3.

As described above, according to the data broadcast receiving apparatus according to the first embodiment of the present invention, upon receiving a data broadcast storage start instruction instructed by a viewer, the data broadcast receiving apparatus sequentially searches for receivable frequencies. , The channel on which the data broadcast is multiplexed is automatically detected, and the data of the data broadcast of the channel is stored in the data broadcast storage unit 3. This eliminates the need for the viewer to know in advance the channel number on which the data broadcast is multiplexed, and can instruct the start of data broadcast storage by a simple operation.

(Second Embodiment) FIG. 3 shows a second embodiment of the present invention.
It is a block diagram which shows the structure of the data broadcast receiving apparatus which concerns on embodiment. In FIG. 3, the data broadcast receiving device according to the second embodiment includes a tuner control unit 1, a tuner unit 2, a data broadcast storage unit 3, a video data generation unit 4,
And a video display unit 5. The tuner control unit 1 includes a frequency setting unit 11, a data broadcast search unit 12, a data broadcast extraction unit 13, and a data broadcast table 14.

As shown in FIG. 3, the data broadcast receiving apparatus according to the second embodiment has a configuration in which a data broadcast table 14 is added to the tuner control unit 1 of the data broadcast receiving apparatus according to the first embodiment. It is. The other configuration of the data broadcast receiving device according to the second embodiment is the same as the configuration of the data broadcast receiving device according to the first embodiment, and the same reference numerals are given to the same components. Description is omitted.

Hereinafter, with further reference to FIGS. 4 to 6, the data broadcast receiving apparatus according to the second embodiment of the present invention is different from the data broadcast receiving apparatus according to the first embodiment in the configuration and processing. This will be mainly described. FIG. 4 is a flowchart illustrating a procedure of a data broadcast storage process performed by the data broadcast receiving device according to the second embodiment of the present invention. In addition,
In FIG. 4, steps that perform the same processing as the processing described in FIG. 2 are denoted by the same step numbers as in FIG. FIG. 5 is a diagram showing an example of a configuration in the data broadcast table 14 of FIG. FIG. 6 shows a data broadcast receiving apparatus according to a second embodiment of the present invention,
9 is a flowchart illustrating a procedure of a data broadcast storage process performed when using information stored in No. 4;

If it is confirmed in step S103 of FIG. 4 that the data broadcast is multiplexed, the data broadcast search unit 12 sends the tuner unit 2 the data broadcast multiplexed to the broadcast wave of the reception channel. It instructs to extract the data and output the data to the data broadcast storage unit 3 (step S105), and also stores information (hereinafter referred to as specific information) such as the number of the reception channel, the frequency, the type of the data broadcast, and the like. 14 (step S106). Note that the relationship between the frequency and the channel number is determined in advance by rules, and the type of data broadcast can be determined by examining the extracted data broadcast header. Therefore, the data broadcast search unit 12
Is, for example, in the specific example described in the first embodiment, the channel number is 6 and the frequency is 183.25 MH.
z, information that the type of data broadcast is ADAMS is stored in the data broadcast table 14 (FIG. 5). On the other hand, if it is determined in step S103 that the data broadcast is not multiplexed, the data broadcast search unit 12 performs the above-described processing without storing information in the data broadcast table 14.

Here, this data broadcast table 14 is
If the data broadcast receiving apparatus is configured in a nonvolatile memory or the like which does not disappear even when the power of the data broadcast receiving apparatus is turned off, the above-described processing may be performed only once when the data broadcast receiving apparatus is installed, Extra operation of the viewer and processing time for creating the data broadcast table 14 each time can be saved. When the data broadcast is stored again using the information stored in the data broadcast table 14, the processing procedure is as follows.

Referring to FIG. 6, the viewer instructs tuner control unit 1 to start storing data broadcast (step S2).
01). In the tuner control unit 1, when receiving an instruction from a viewer, the data broadcast search unit 12 refers to the data broadcast table 14 to acquire the frequency at which the data broadcast is multiplexed, and acquires the frequency to the frequency setting unit 11. It is instructed to set the frequency (step S202). The frequency setting unit 11 instructs the tuner unit 2 on the frequency set under the instruction of the data broadcast search unit 12. Tuner unit 2
Tuning is performed at the frequency specified by the frequency setting unit 11 (step S203). And the tuner unit 2
The data of the data broadcast multiplexed on the broadcast wave of the channel received by the tuning is extracted and output to the data broadcast storage unit 3 (step S204).

As described above, according to the data broadcast receiving apparatus according to the second embodiment of the present invention, upon receiving a data broadcast storage start instruction instructed by a viewer, the data broadcast receiving apparatus sequentially searches for receivable frequencies. , The channel on which the data broadcast is multiplexed is automatically detected, the data of the data broadcast of the channel is stored in the data broadcast storage unit 3, and the specific information is stored in the data broadcast table 14. This eliminates the need for the viewer to know in advance the channel number on which the data broadcast is multiplexed, and can instruct the start of data broadcast storage at a high speed with a simpler operation.

(Third Embodiment) FIG. 7 shows a third embodiment of the present invention.
It is a block diagram which shows the structure of the data broadcast receiving apparatus which concerns on embodiment. In FIG. 7, the data broadcast receiving device according to the third embodiment includes a tuner control unit 1, a tuner unit 2, a data broadcast storage unit 3, a video data generation unit 4,
And a video display unit 5. The tuner control unit 1 includes a frequency setting unit 11, a data broadcast search unit 12, a data broadcast extraction unit 13, a data broadcast table 14, and a data broadcast menu generation unit 15.

As shown in FIG. 7, the data broadcast receiving apparatus according to the third embodiment has a data broadcast menu generating section 15 added to the tuner control section 1 of the data broadcast receiving apparatus according to the second embodiment. Configuration. Note that the other configuration of the data broadcast receiving device according to the third embodiment is the same as the configuration of the data broadcast receiving device according to the second embodiment, and the same reference numerals are given to the components. Description is omitted.

Hereinafter, with further reference to FIG. 8 and FIG.
A data broadcast receiving apparatus according to a third embodiment of the present invention
The following description focuses on components and processes that are different from those of the data broadcast receiving device according to the second embodiment. In addition, FIG.
FIG. 8 is a diagram illustrating an example of a menu screen displayed by a data broadcast menu generation unit 15 in FIG. 7.

The data broadcast menu generator 15 displays a menu as shown in FIG. 8A on the screen of the video display 5. On the other hand, when the viewer wants to check the data broadcast, he or she clicks a “data broadcast” button on the TV operation menu with an input device such as a mouse. The data broadcast menu generation unit 15 refers to the data broadcast table 14 in response to the click of the “data broadcast” button performed by the viewer and acquires the currently stored specific information. here,
If no specific information is stored in the data broadcast table 14, the data broadcast menu generation unit 15 outputs a message “Current data broadcast cannot be received” on the screen of the video display unit 5 (FIG. 8). (B)). On the other hand, when the specific information is stored in the data broadcast table 14, the data broadcast menu generation unit 15 displays the type of data broadcast, for example, “ADAM” on the screen of the video display unit 5.
S "is output (FIG. 8C).

As described above, according to the data broadcast receiving apparatus according to the third embodiment of the present invention, upon receiving the data broadcast storage start instruction instructed by the viewer, the data broadcast receiving apparatus sequentially searches for receivable frequencies. , The channel on which the data broadcast is multiplexed is automatically detected, the data of the data broadcast of the channel is stored in the data broadcast storage unit 3, and the specific information is stored in the data broadcast table 14. Then, based on the specific information stored in the data broadcast table 14, the presence of the data broadcast is displayed as a menu on the video display unit 5. This eliminates the need for the viewer to know in advance the channel number on which the data broadcast is multiplexed, and can instruct the start of data broadcast storage at high speed with a simple operation. Furthermore, without waiting for the completion of the data broadcast search,
It is possible to immediately confirm whether the data of the data broadcast is correctly stored in the data broadcast storage unit 3.

Fourth Embodiment In each of the above-described embodiments, a case has been described in which, among the receivable broadcast waves, the frequency to which the data broadcast is multiplexed is one. Therefore, next, a case where a plurality of identical data broadcasts are transmitted by broadcast waves of different frequencies will be described. In the following fourth embodiment, the frequency band of the received radio wave is 9
7.25 MHz (channel 2), 183.25 MH
z (channel 6), 665 MHz (channel 45)
Number) and the same data broadcast (ADAM
S) is frequency 183.25 MHz and frequency 665 MHz
The case where the radio wave of 183.25 MHz has a poor reception state and the radio wave of 665 MHz has a good reception state will be described as an example.

FIG. 9 is a block diagram showing a configuration of a data broadcast receiving apparatus according to the fourth embodiment of the present invention. FIG.
, The data broadcast receiving apparatus according to the fourth embodiment includes a tuner control unit 1, a tuner unit 2, a data broadcast storage unit 3, a video data generation unit 4, and a video display unit 5. The tuner control unit 1 includes a frequency setting unit 11, a data broadcast search unit 12, a data broadcast extraction unit 13, a data broadcast table 14, and a reception status monitoring unit 16.

As shown in FIG. 9, the data broadcast receiving device according to the fourth embodiment has a tuner control unit 1 of the data broadcast receiving device according to the second embodiment, and a reception status monitoring unit 16 added. Configuration. Note that the other configuration of the data broadcast receiving device according to the fourth embodiment is the same as the configuration of the data broadcast receiving device according to the second embodiment, and the same reference numerals are given to the same components. Description is omitted.

Hereinafter, with further reference to FIGS. 10 to 12,
A data broadcast receiving device according to a fourth embodiment of the present invention
The following description focuses on components and processes that are different from those of the data broadcast receiving device according to the second embodiment. FIG. 10 is a flowchart illustrating a procedure of a data broadcast storage process performed by the data broadcast receiving device according to the fourth embodiment of the present invention.
In FIG. 10, steps for performing the same processing as the processing described with reference to FIGS.
The same step numbers as in FIG. FIG. 11 is a diagram showing an example of a configuration in the data broadcast table 14 of FIG. FIG. 12 is a flowchart illustrating a procedure of a data broadcast storage process performed by the data broadcast receiving apparatus according to the fourth embodiment of the present invention when using information stored in the data broadcast table 14. In FIG. 12, steps for performing the same processing as the processing described in FIG.
The same step numbers as in FIG. 6 are assigned.

If it is confirmed in step S103 of FIG. 10 that the data broadcast is multiplexed, the data broadcast search unit 12 sends the specific information, that is, the number and frequency of the reception channel, the type of the data broadcast, and the like. It is stored in the data broadcast table 14 (step S106). As described above, the relationship between the frequency and the channel number is determined in advance by the rules, and the type of the data broadcast can be determined by examining the extracted data broadcast header. On the other hand, if it is determined in step S103 that the data broadcast is not multiplexed, the data broadcast search unit 12 sends the data broadcast table 14
The above-described processing is performed without storing information.

The data broadcast search section 12 performs the processing in step S
In 106, when the storage of the specific information on any one reception channel is completed, it is determined whether or not the search has been performed for all the frequency bands (step S107). In the determination in step S107,
If there is still a frequency to be searched, the data broadcast search unit 12 returns to step S103 and performs processing on the frequency. By repeatedly performing such processing, if the same data broadcast is transmitted by a plurality of broadcast waves of different frequencies, the data broadcast table 1
4 can store a plurality of specific information (see FIG. 1).
1).

On the other hand, if it is determined in step S107 that the search has been completed for all the frequency bands, the data broadcast search unit 12 sends the data broadcast table 1
4 to obtain any frequency (for example, 183.25 MHz) in which the data broadcast is multiplexed, and instructs the frequency setting unit 11 to set the obtained frequency (step S108). The frequency setting unit 11 instructs the tuner unit 2 on the frequency set under the instruction of the data broadcast search unit 12. The tuner unit 2 includes a frequency setting unit 1
Tuning is performed at the frequency designated by 1 (step S109). Then, the tuner unit 2 extracts the data of the data broadcast multiplexed on the broadcast wave of the channel received by the tuning, and outputs the data to the data broadcast storage unit 3 (step S110).

Here, the reception status monitoring unit 16 calculates the CN ratio (Carrier to Noise Ratio) of the tuner unit 2
It is determined whether the reception state of the reception channel is good (step S111). In this step S111, when the reception status monitoring unit 16 determines that the reception state is good, after the data accumulation in the data broadcast accumulation unit 3 is continued,
This processing ends. On the other hand, if it is determined in step S111 that the reception state is not good, the reception status monitoring unit 16 notifies the data broadcast search unit 12 of that fact. Upon receiving this notification, the data broadcast search unit 12
From the data broadcast table 14, another frequency (for example, 6
65 MHz) (step S112), and returns to step S103 to perform subsequent processing. By repeatedly performing such processing, data of a data broadcast with a good reception status can be stored when a plurality of the same data broadcasts are transmitted by broadcast waves of different frequencies.

When the data broadcast is stored again using the information stored in the data broadcast table 14,
The processing procedure is as follows. Referring to FIG. 12, a viewer instructs tuner control unit 1 to start storing data broadcast (step S201). In the tuner control unit 1, upon receiving an instruction from a viewer, the data broadcast search unit 12 refers to the data broadcast table 14 to select one of the frequencies to which the data broadcast is multiplexed (for example, 183.25).
MHz), and instructs the frequency setting unit 11 to set the acquired frequency (step S20).
2). The frequency setting unit 11 instructs the tuner unit 2 on the frequency set under the instruction of the data broadcast search unit 12. The tuner unit 2 performs tuning at the frequency specified by the frequency setting unit 11 (Step S203). Then, the tuner unit 2 extracts the data of the data broadcast multiplexed on the broadcast wave of the channel received by the tuning and outputs the data to the data broadcast storage unit 3 (step S20).
4).

Here, the reception status monitoring unit 16 determines whether the reception state of the reception channel is good based on the CN ratio of the tuner unit 2 (step S205). In step S205, when the reception status monitoring unit 16 determines that the reception state is good, the process is terminated after the data accumulation in the data broadcast accumulation unit 3 is continued. on the other hand,
If it is determined in step S205 that the reception state is not good, the reception status monitoring unit 16 notifies the data broadcast search unit 12 of that fact. The data broadcast search unit 12 having received this notification acquires another frequency (for example, 665 MHz) from the data broadcast table 14 again (step S206), and returns to step S203 to perform the subsequent processing.

In the above description, the reception status monitoring unit 16 determines whether the reception status is good using the CN ratio. However, another determination method may be used. For example, since data of data broadcasting is divided for each packet to which an error correction flag is added, it is also possible to calculate the error rate of the packet and determine whether the reception status is good. In addition, since a data broadcast program is transmitted by being divided into a plurality of files at a broadcasting station, by using a configuration for storing these divided files, it is possible to determine whether or not the files have been correctly stored. It may be determined whether the reception status is good. Also, in the above description, the determination of whether the reception status is good is performed only once, tuning is performed once with a good frequency in the reception status, and after the start of data broadcast extraction,
The frequency is fixed, but the reception status monitor 16
May constantly monitor the reception status, and may change the frequency to a different frequency band at any time when the reception status deteriorates.

As described above, according to the data broadcast receiving apparatus according to the fourth embodiment of the present invention, when the same data broadcast is transmitted by a plurality of broadcast waves of different frequencies, the data designated by the viewer In response to the broadcast storage start command, receivable frequencies are searched in order to automatically detect the channel on which the data broadcast is multiplexed, and store the data broadcast data on the channel with the best reception status. The information is stored in the unit 3 and a plurality of specific information is stored in the data broadcast table 14. This eliminates the need for the viewer to know in advance the channel number on which the data broadcast is multiplexed, and can instruct the start of data broadcast storage at high speed with a simple operation. If the accumulation state of the currently received data broadcast is not good, it is possible to select a data broadcast of a different frequency stored in the data broadcast table 14. Therefore, it is less susceptible to data loss occurring in the transmission path of the radio wave, and correct data broadcast information can be stored.

In the first to fourth embodiments, the description has been given of the data broadcast receiving apparatus provided with the tuner control unit 1 in advance. However, since the tuner control unit 1 can exist independently (individually), the tuner control unit 1 can be connected to an external device such as an existing television receiver or a personal computer that receives broadcast radio waves by external connection. Accordingly, the above-described useful effects of the present invention can be similarly obtained.

(Fifth Embodiment) In the fourth embodiment, the same data broadcast is transmitted at a plurality of different frequencies among the receivable broadcast radio waves. The description has been given of the data broadcast receiving device having one tuner unit 2. Therefore, a data broadcast receiving device having a plurality of tuners 2 for receiving broadcast radio waves in the fifth embodiment will be described next.

FIG. 13 is a block diagram showing a configuration of a data broadcast receiving apparatus according to the fifth embodiment of the present invention. In FIG. 13, the data broadcast receiving apparatus according to the fifth embodiment includes a tuner control unit 1, first to Nth tuner units (N is an integer of 2 or more; the same applies hereinafter) 2, An N storage unit 6, a stored data selection unit 7, a data broadcast storage unit 3, a video data generation unit 4, and a video display unit 5. Here, the tuner control unit 1 of the data broadcast receiving device according to the fifth embodiment corresponds to each of the tuner control units 1 of the data broadcast receiving devices according to the above-described first to fourth embodiments. .

As shown in FIG. 13, the data broadcast receiving apparatus according to the fifth embodiment is different from the data broadcast receiving apparatuses according to the first to third embodiments in that the first to Nth tuner units 2 are provided.
And a configuration in which first to Nth storage units 6 and a storage data selection unit 7 are added. The other configurations of the data broadcast receiving device according to the fifth embodiment are the same as the configurations of the data broadcast receiving devices according to the first to third embodiments, respectively. And the description is omitted.

Hereinafter, with further reference to FIG. 14, a data broadcast receiving apparatus according to the fifth embodiment of the present invention will be described with reference to the first embodiment.
The following description focuses on the components and processes different from those of the data broadcast receiving apparatus according to the third embodiment. FIG. 14 is a flowchart illustrating a procedure of a data broadcast storage determination process performed by the data broadcast receiving device according to the fifth embodiment of the present invention.

First, each configuration of the data broadcast receiving apparatus according to the fifth embodiment will be described. First to Nth tuner units 2
Receives the broadcast wave and outputs the data of the data broadcast multiplexed to the reception channel to the first to Nth storage units 6 according to the instruction of the tuner control unit 1. The first to Nth storage units 6 store data output from the first to Nth tuner units 2 respectively. The stored data selection unit 7 compares the data stored in the first to Nth storage units 6 to determine whether the reception status is good (that is, the reliability of the data). The data having high reliability is output to the data broadcast storage unit 3.

Next, with reference to FIG. 14, a description will be given of a data broadcast storage determination process performed by the data broadcast receiving apparatus according to the fifth embodiment. First, the tuner control unit 1 executes
According to the procedure described in the fourth embodiment, the frequency f (channel) of the broadcast wave on which the data broadcast is multiplexed is detected. Now, consider a case where the tuner control unit 1 detects that the same data broadcast is multiplexed on N broadcast waves of frequencies f1 to fN. In this case, the tuner control unit 1 instructs the first tuner unit 2 to perform tuning at the frequency f1, extract data of the data broadcast, and sequentially transmit the data to one storage unit 6 ( Step S301). Similarly, the tuner control unit 1
For each of the second to Nth tuner units 2, the frequency f2
The tuning is performed at .about.fN, the data of the data broadcast is extracted, and instructions are sequentially sent to the second to N-th storage units 6 (step S301). And the first to first
When the data storage in the N-th storage unit 6 is completed, the stored data selection unit 7 determines the reliability by comparing the error rates of the data stored in the first to N-th storage units 6 (step S302). Then, as a result of the determination, the stored data selection unit 7 outputs the data having the lowest data error rate to the data broadcast storage unit 3 (Step S303).

In the above description, the reliability determination performed by the stored data selection unit 7 is performed using the error rates of the data stored in the first to Nth storage units 6, respectively. The determination method may be used. For example, a data broadcast program is divided into a plurality of files at a broadcasting station and transmitted. By storing these divided files in the first to N-th storage units 6, respectively, the stored data selection unit 7 may determine the reliability of the data based on whether or not the file has been correctly stored.

As described above, according to the data broadcast receiving apparatus according to the fifth embodiment of the present invention, a plurality of receiving configurations (tuners 2 and storages 6) are provided, and the same data broadcast has different frequencies. If multiple broadcasts are being sent,
Data of data broadcasts having different frequencies are extracted in a plurality of reception configurations, and the reliability of the extracted data is determined to accumulate data with the best reception status. Therefore, it is less susceptible to data loss occurring in the transmission path of the radio wave, and correct data broadcast information can be stored.

The tuner control section 1 of the data broadcast receiving apparatus according to the fifth embodiment may be constituted by the tuner control section 101 of the conventional data broadcast receiving apparatus described above. However, in this case, there is no improvement in that the viewer needs to know in advance the channel number on which the data broadcast is being broadcast, but the effect of data loss that occurs on the radio wave transmission path is not improved. This makes it difficult to receive the information and correct data broadcast information can be stored.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a data broadcast receiving device according to a first embodiment of the present invention.

FIG. 2 is a flowchart illustrating a procedure of a data broadcast accumulation process performed by the data broadcast receiving device according to the first embodiment of the present invention.

FIG. 3 is a block diagram illustrating a configuration of a data broadcast receiving device according to a second embodiment of the present invention.

FIG. 4 is a flowchart illustrating a procedure of a data broadcast accumulation process performed by a data broadcast receiving device according to a second embodiment of the present invention.

FIG. 5 is a diagram showing an example of a configuration in a data broadcast table 14 of FIG. 3;

FIG. 6 is a flowchart illustrating a procedure of a data broadcast accumulation process performed by the data broadcast receiving apparatus according to the second embodiment of the present invention when using information stored in the data broadcast table 14.

FIG. 7 is a block diagram illustrating a configuration of a data broadcast receiving device according to a third embodiment of the present invention.

8 is a diagram showing an example of a menu screen displayed by the data broadcast menu generation unit 15 of FIG.

FIG. 9 is a block diagram illustrating a configuration of a data broadcast receiving device according to a fourth embodiment of the present invention.

FIG. 10 is a flowchart illustrating a procedure of a data broadcast storage process performed by a data broadcast receiving device according to a fourth embodiment of the present invention.

FIG. 11 is a diagram showing an example of a configuration in a data broadcast table 14 of FIG. 9;

FIG. 12 is a flowchart illustrating a procedure of a data broadcast storage process performed by the data broadcast receiving apparatus according to the fourth embodiment of the present invention when using information stored in the data broadcast table 14.

FIG. 13 is a block diagram illustrating a configuration of a data broadcast receiving device according to a fifth embodiment of the present invention.

FIG. 14 is a flowchart illustrating a procedure of a data broadcast accumulation determination process performed by a data broadcast receiving device according to a fifth embodiment of the present invention.

FIG. 15 is a block diagram showing a configuration of a conventional data broadcast receiving device.

FIG. 16 is a flowchart showing a procedure of a data broadcast accumulation determination process performed by a conventional data broadcast receiving device.

[Explanation of symbols]

 1, 101: Tuner control unit 2, 102: Tuner unit 3, 103: Data broadcast storage unit 4, 104: Video data generation unit 5, 105: Video display unit 6: Storage unit 7: Storage data selection unit 11: Frequency setting Unit 12: Data broadcast search unit 12: Data broadcast extraction unit 14: Data broadcast table 15: Data broadcast menu generation unit 16: Reception status monitoring unit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuaki Ohara 1006 Kadoma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. (72) Inventor Jiro Keida 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Nobuya Kusuhara 1006 Odaka Makoto Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. BA25 CA01 CB10 DA05 5C063 AB05 AC10 CA23

Claims (15)

[Claims] 1. A data broadcast receiving apparatus for receiving a broadcast wave in which a data broadcast is multiplexed, wherein an arbitrary frequency is designated to a frequency setting means in response to a data broadcast accumulation command designated by a viewer, The presence / absence of data broadcasting is searched for according to the extraction result received from the broadcast extracting means. If there is data broadcasting, the tuner means is instructed to store data. Data broadcasting search means for instructing; frequency setting means for setting the frequency of a broadcast wave received by the tuner means in accordance with an instruction from the data broadcast search means; and data broadcasting on the broadcast wave received by the tuner means. Said data broadcast extracting means for detecting whether or not multiplexing is performed, and outputting a result of the detection to said data broadcast searching means; The tuner means for receiving a broadcast wave of the frequency set by the frequency setting means, and outputting data of a data broadcast multiplexed to the received broadcast wave to the data broadcast storage means according to an instruction of the data broadcast search means; A data broadcast receiving apparatus, comprising: the data broadcast storage means for storing data of data broadcast output by the tuner means. 2. An information storage means for storing specific information (reception channel number, reception frequency, type of data broadcast, etc.) of the multiplexed broadcast wave of the data broadcast searched by the data broadcast search means. The data broadcast search means, when the specific information is stored in the information storage means when the data broadcast storage command is instructed by a viewer, to the frequency setting means using the specific information 2. The data broadcast receiving device according to claim 1, wherein an instruction to set the frequency is given. 3. A data broadcast menu generating means for generating display data indicating the existence of a data broadcast when the specific information is stored in the information storage means and outputting the display data as visible information on an arbitrary display screen. The data broadcast receiving device according to claim 2, further comprising: 4. When the same data broadcast is multiplexed on a plurality of broadcast radio waves of different frequencies, the tuner means monitors the reception status of each of the plurality of broadcast radio waves received, and 3. The data broadcast receiving apparatus according to claim 2, further comprising a reception status monitoring unit that instructs the data broadcast search unit to store a data broadcast of a broadcast wave in the data broadcast storage unit. 5. A data broadcast receiving apparatus for receiving a broadcast wave in which the same data broadcast is multiplexed on a plurality of different frequencies, wherein each of the data broadcast receiving commands is transmitted to a frequency setting means in response to a data broadcast storage command instructed by a viewer. A plurality of different frequencies are designated, and the presence or absence of a data broadcast is searched in accordance with a plurality of extraction results received from the data broadcast extracting means. If there is a data broadcast, the data is stored in one or more corresponding tuner means. And a data broadcast search means for instructing the frequency setting means to specify a different frequency again when there is no data broadcast, and a first to N-th (where N is an integer of 2 or more) according to the instruction from the data broadcast search means. The same applies to the following.) The frequency setting means for setting the frequency of the broadcast radio wave respectively received by the tuner means, and the first to Nth tuner hands. Each of the stages detects whether or not a data broadcast is multiplexed on the received broadcast radio wave, and outputs the result of the detection to the data broadcast search unit, the data broadcast extraction unit, and the frequency setting unit, Receiving the broadcast wave of the one frequency, and outputting the data of the data broadcast multiplexed to the received broadcast wave to the first to N-th storage units according to the instruction of the data broadcast search unit. First to Nth tuner means; first to Nth storage means for temporarily storing data of data broadcasts output by the first to Nth tuner means, respectively; A storage data selection unit that compares the data stored by the Nth storage unit with each other and outputs data of the data broadcast having the best reception condition to the data broadcast storage unit; A data broadcast receiving apparatus, comprising: the data broadcast storage means for storing data of a data broadcast output by a data selection means. 6. An information storage means for storing specific information (reception channel number, reception frequency, type of data broadcast, etc.) of a multiplexed broadcast wave of a data broadcast searched by said data broadcast search means. The data broadcast search means, when the specific information is stored in the information storage means when the data broadcast storage command is instructed by a viewer, to the frequency setting means using the specific information 6. The data broadcast receiving device according to claim 5, wherein the frequency setting is instructed. 7. A data broadcast menu generating means for generating display data indicating the existence of a data broadcast when said specific information is stored in said information storage means and outputting it as visible information on an arbitrary display screen. The data broadcast receiving device according to claim 6, further comprising: 8. A data broadcast receiving apparatus for receiving a broadcast wave in which the same data broadcast is multiplexed with a plurality of broadcast waves of different frequencies, comprising: a channel number of the broadcast wave designated by a viewer; In response to the command, tuner control means for setting the frequency of the broadcast radio wave respectively received by the tuner means, and a broadcast radio wave of any one frequency set by the tuner control means is received and multiplexed with the received broadcast radio wave. The first to Nth tuner means for outputting the data of the data broadcast to the first to Nth (N is an integer of 2 or more; the same applies hereinafter) storage means, respectively; The first to Nth storage means for temporarily storing the data of the data broadcast respectively output by the means, and the data respectively stored by the first to Nth storage means. A stored data selecting unit that outputs data of a data broadcast having the best reception status to the data broadcast storing unit, and a data broadcast storing unit that stores data of the data broadcast output by the stored data selecting unit A data broadcast receiving device comprising: 9. A tuner control device for controlling a tuner means for receiving a broadcast wave on which a data broadcast is multiplexed, wherein an arbitrary frequency is transmitted to a frequency setting means in response to a data broadcast storage command instructed by a viewer. Instructing the tuner means to store the data if there is a data broadcast, and instructing the tuner means to store the data if there is a data broadcast, and the frequency setting means if there is no data broadcast. A data broadcast search means for instructing a different frequency again, a frequency setting means for setting a frequency of a broadcast wave received by the tuner means in accordance with an instruction from the data broadcast search means, and a broadcast received by the tuner means. The data broadcasting device detects whether or not a data broadcast is multiplexed on a radio wave and outputs a result of the detection to the data broadcasting search means. A tuner control device comprising: a data broadcast extracting unit. 10. An information storage means for storing specific information (reception channel number, reception frequency, type of data broadcast, etc.) of a multiplexed broadcast wave of a data broadcast searched by said data broadcast search means. The data broadcast search means, when the specific information is stored in the information storage means when the data broadcast storage command is instructed by a viewer, to the frequency setting means using the specific information The tuner control device according to claim 9, wherein the tuner control device is instructed to set the frequency. 11. A data broadcast menu generating means for generating display data indicating the existence of a data broadcast and outputting the data as visible information on an arbitrary display screen when the specific information is stored in the information storage means. The tuner control device according to claim 10, further comprising: 12. When the same data broadcast is multiplexed on a plurality of broadcast radio waves of different frequencies, the tuner means monitors the reception status of each of the plurality of broadcast radio waves received, and The tuner control device according to claim 10, further comprising a reception status monitoring unit that instructs the data broadcast search unit to store a data broadcast of a broadcast wave in the data broadcast storage unit. 13. A tuner control device for controlling a plurality of tuner means for receiving broadcast waves in which the same data broadcast is multiplexed on a plurality of different frequencies, wherein the tuner control device responds to a data broadcast storage command instructed by a viewer. , A plurality of different frequencies are instructed to the frequency setting means, and the presence / absence of data broadcasting is respectively searched according to a plurality of extraction results received from the data broadcasting extracting means. Means for instructing data accumulation to the means, and when there is no data broadcast, a data broadcast search means for instructing the frequency setting means again at a different frequency; and in accordance with an instruction from the data broadcast search means, The frequency setting means for setting the frequency of the broadcast radio wave to be received, and the plurality of tuner means respectively receiving A tuner control device comprising: a data broadcast extracting unit that detects whether a data broadcast is multiplexed on the broadcast airwave and outputs a result of the detection to the data broadcast search unit. 14. An information storage means for storing specific information (reception channel number, reception frequency, type of data broadcast, etc.) of the multiplexed broadcast wave of the data broadcast searched by said data broadcast search means. The data broadcast search means, when the specific information is stored in the information storage means when the data broadcast storage command is instructed by a viewer, to the frequency setting means using the specific information 14. The tuner control device according to claim 13, wherein a frequency setting is instructed. 15. A data broadcast menu generating means for generating display data indicating the existence of a data broadcast and outputting the data as visible information on an arbitrary display screen when the specific information is stored in the information storage means. The tuner control device according to claim 14, further comprising: