JP2008131263A - Tv receiver, tv broadcast reception controller and method for controlling tv broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a TV broadcast reception controller provided with only a digital tuner capable of controlling TV broadcast reception by using a control program of a TV broadcast reception controller provided with a conventional analog-digital tuner without sharply changing the control program, and to provide a control method. <P>SOLUTION: In a TV receiver, a control part 2 judges whether an acknowledge signal called as ACK from a tuner controller 12 is inputted or not (S13). When the control part 2 can not receive the ACK signal (NO in S13), the control part 2 recognizes that a tuner set 1 is not provided with an analog tuner 91, reads out a digital control program from a control program storage part 4 (S17) and performs reception setting for receiving digital terrestrial broadcasting (S16). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a TV receiver including a TV broadcast receiving device that receives a TV broadcast, and more particularly to a control device and a control method for controlling a tuner provided in the TV broadcast receiving device.

  Currently, TV broadcasting using terrestrial waves is a so-called W-tuner that uses both analog terrestrial broadcasting that transmits and receives analog signals and digital terrestrial broadcasting that transmits and receives digital signals. A TV broadcast receiving apparatus built in a TV receiver, VTR, DVD recorder or the like capable of receiving both terrestrial analog broadcast and terrestrial digital broadcast includes at least one analog tuner and at least one digital tuner. ing.

  FIG. 3 is a block diagram of a TV receiver as an example of a conventional TV broadcast receiver. The TV receiver B shown in FIG. 3 is capable of receiving terrestrial analog broadcasting and terrestrial digital broadcasting, and includes at least an antenna ANT, a tuner set 9, a control unit 2, a memory 3, and a control program. A storage unit 4, signal processing units 5 and 51, output units 6 and 61, a display unit 7, and an operation input unit 8 are provided.

  The antenna ANT is connected to a tuner set 9 that can demodulate radio waves of terrestrial analog broadcasting and terrestrial digital broadcasting. The radio wave received by the antenna ANT is sent to the analog tuner 91 or the digital tuner 11 provided in the tuner set 9.

  The tuner set 9 includes an analog tuner 91 that can receive terrestrial analog broadcast, a digital tuner 11 that can receive terrestrial digital broadcast, a tuner controller 12 that drives the analog tuner 91 and the digital tuner 11, and have. The tuner controller 12 is driven in response to an instruction from the control unit 2 and controls the channel selection operation of the analog tuner 12 and / or the digital tuner 11 and manages the channel obtained by the channel selection operation. To do.

  The analog tuner 91 selects a terrestrial analog broadcast signal from a terrestrial analog broadcast radio wave received by the antenna ANT. The digital tuner 11 selects a terrestrial digital broadcast signal from a terrestrial digital broadcast wave received by an antenna ANT.

  The memory 3 is a storage medium for storing various data held by the TV broadcast receiving apparatus, and includes, for example, a read-only ROM (Read Only Memory), a writable RAM (Random Access Memory), and the like. Examples of the various data include frequency data for each broadcasting station of analog terrestrial broadcasting, OSD display image data for analog broadcasting, frequency data for each broadcasting station of digital terrestrial broadcasting, OSD display image data for digital broadcasting, and the like. Can do.

  The control unit 2 is for controlling the driving of the tuner set 9. The control unit 2 controls the tuner set 9 in accordance with a control program stored in the control program storage unit 4. The control program storage unit 4 is provided in the control unit 2, and stores an analog control program for controlling the analog tuner 91 and a digital control program for controlling the digital tuner 11.

  The terrestrial analog broadcast signal selected by the analog tuner 91 is demodulated by the signal processing unit 51, processed to have a signal format corresponding to the display unit 7, and sent to the display unit 7 via the output unit 61. . The output unit 61 is an interface that connects the signal processing unit 51 and the display unit 7. The broadcast signal demodulated by the signal processing unit 51 includes information such as video, audio, and electronic program guide (EPG).

  The terrestrial digital broadcast signal received by the digital tuner 11 is demodulated / error-corrected by the signal processing unit 5, converted into content data (such as MPEG), and sent to the display unit via the output unit 6. The output unit 6 incorporates a D / A converter that converts digital content data into analog, which is converted into an analog signal and sent to the display unit 7. The broadcast signal demodulated by the signal processing unit 5 includes information such as video, audio, electronic program guide (DEPG), and data.

  In the TV broadcast receiving apparatus, simultaneously with the activation, the control unit 2 reads out a program for driving / controlling the analog tuner 91 and the digital tuner 11 from the control program storage unit 4, drives the analog tuner 91, and terrestrial analog broadcast The reception setting operation for receiving is performed. Also, a reception setting operation for driving the digital tuner 11 and receiving terrestrial digital broadcasting is performed.

  Reception settings for receiving terrestrial analog broadcasting are operations specific to analog broadcasting, such as a channel selection operation, an EPG acquisition operation, and a time adjustment operation in which time adjustment is performed based on a time signal sent from a predetermined broadcasting station. In addition, reception settings for receiving terrestrial digital broadcasting are operations specific to digital broadcasting such as a channel selection operation, a DEPG acquisition operation, and a time adjustment operation.

The operation input unit 8 is a group of buttons for the user to operate the TV receiver B. Although not shown, the operation input unit 8 includes a power button, a channel selection button, a volume button, an input switching button, and the like. Yes. The operation input unit 8 is connected to the control unit 2, and the operation input by the operation input unit 8 is sent to the control unit 2, and the control unit 2 performs control according to the input operation (special JP 2005-159682 A, JP 2006-94317 A, etc.).
JP 2005-159682 A JP 2006-94317 A

  For example, in Japan, terrestrial analog broadcasting is scheduled to end in 2011, and accordingly, reception of terrestrial analog broadcasting by a TV broadcast receiving apparatus becomes unnecessary. After the terrestrial analog broadcasting is completed, the analog tuner is removed from the TV broadcast receiving device because the analog tuner is not necessary.

  However, the control unit 2, the tuner controller 12, and the control program of the W-tuner type TV broadcast receiving apparatus are first configured to perform reception settings for receiving terrestrial analog broadcasts. There is a possibility that the TV broadcast receiving apparatus does not operate normally only by removing.

  Therefore, the TV broadcast receiving apparatus is configured not to include the analog tuner, and requires a new control unit 2, a tuner controller 12, and a control program that do not perform reception settings for receiving terrestrial analog broadcasting. . In order to create a new control program, a lot of time and cost are required, and the manufacturing cost may increase even though the analog tuner is omitted.

  Therefore, the present invention includes only a digital tuner that can be accurately controlled by using a control unit, a tuner controller, and a control program of a TV broadcast receiving apparatus having a conventional analog / digital tuner without significantly changing. An object is to provide a TV broadcast receiving apparatus.

  In order to achieve the above object, the present invention is a TV broadcast reception control apparatus for controlling a tuner set that includes at least a digital receiving means capable of receiving a digital TV broadcast and that can receive a TV broadcast of a plurality of channels. Inspecting whether or not the analog reception means capable of receiving an analog TV broadcast is provided in the set and confirming that the analog reception means is not provided, the reception setting of the digital TV broadcast is performed. To do.

  According to this configuration, the same TV broadcast reception control apparatus as that used in the conventional TV broadcast reception apparatus that can receive analog TV broadcasts and digital TV broadcasts is used, and TV broadcast reception dedicated to digital TV broadcast reception is performed. It is possible to control the device.

  According to this, after the analog TV broadcast is finished, it is not necessary to change the control device of the TV broadcast receiving device dedicated to the digital TV broadcast, and it is not necessary to newly design the control device (including the control program). . This can reduce the cost for designing and manufacturing the control device.

  In the above configuration, the inspection transmits an activation signal to the tuner set, and when a response signal is transmitted from the tuner set, the tuner set recognizes that the analog receiving means is provided, and the response signal May be operated to recognize that the tuner set is not equipped with the analog receiving means.

  In the above configuration, the TV broadcast reception control apparatus includes a digital control program for controlling the digital reception means and a control program storage means for storing an analog control program for controlling the analog reception means. The digital control program may be read when the digital TV broadcast reception is set.

  The analog TV broadcast may be a terrestrial analog broadcast, and the digital TV broadcast may be a terrestrial digital broadcast, and the reception setting of the digital TV broadcast includes channel selection and reading of OSD display image data. There may be.

  The following TV receiver can be given as an example of the TV broadcast reception control apparatus according to the present invention. That is, at least a digital receiving means capable of receiving a terrestrial digital broadcast, a tuner set capable of receiving a TV broadcast of a plurality of channels, a control means for controlling the operation of the tuner set, and a control of the digital receiving means. In a TV receiver having a control program storage means storing an analog control program for controlling an analog reception means for receiving a digital control program and terrestrial analog broadcast, and a display means, the control means comprises: An activation signal is transmitted to the tuner set, and when the response signal is transmitted from the tuner set, the tuner set recognizes that the analog receiving means is provided, and when the response signal is not transmitted, the tuner set. The analog receiving means is provided in the set When the control means recognizes that the tuner set includes the analog reception means, the analog control program and the digital control program are read from the control program storage means, Channel selection for analog broadcasting and digital terrestrial broadcasting is performed, and when it is recognized that the tuner set does not include the analog receiving means, the digital control program is read from the control program storage unit, and the terrestrial digital A TV receiver characterized by selecting a broadcast channel.

  In order to achieve the above object, the present invention provides a tuner set including digital receiving means capable of receiving at least a plurality of channels of digital TV broadcasts, a control means for controlling the tuner set, and the digital receiving means. A control method for a TV broadcast receiving apparatus, comprising: a digital control program for performing control; and a control program storing means for storing an analog control program for controlling analog receiving means for receiving terrestrial analog broadcast, A confirmation signal transmission step of transmitting a confirmation signal for confirming whether or not the analog reception means is present in the tuner set from the control means when the TV broadcast receiver is activated; and after the confirmation signal is transmitted, The tuner set is only provided with the analog receiving means. A response signal transmission step of transmitting a response signal to the control means, a response signal confirmation step of confirming reception of the response signal by the control means, and the control means receiving the response signal in the response signal confirmation step. A first reception setting step which is performed after confirmation, and wherein the control means reads both the analog control program and the digital control program from the control program storage means, and performs analog TV broadcast reception setting and digital TV broadcast reception setting. And after the control means has failed to confirm the reception of the response signal in the response signal confirmation step, the control means reads only the digital control program from the control program storage means, and the digital TV broadcast reception setting And a second reception setting step.

  To achieve the above object, the present invention comprises at least a digital receiving means capable of receiving a digital TV broadcast, a tuner set capable of receiving a TV broadcast of a plurality of channels, and a control for controlling the tuner set. An analog confirmation step of confirming whether the tuner set is equipped with an analog reception means for receiving an analog TV broadcast when the TV broadcast reception device is activated; and A first reception setting step for performing reception setting for the analog TV broadcast and reception setting for the digital broadcast when the presence of the analog reception unit is confirmed in the confirmation step; and the presence of the analog reception unit in the analog confirmation step. Is not confirmed, the second reception setting for setting the reception of the digital TV broadcast is performed. And a step.

  According to the present invention, only a digital tuner that can be accurately controlled using a control unit, a tuner controller, and a control program of a TV broadcast receiving apparatus having a conventional analog / digital tuner without significant change is provided. A TV broadcast receiving apparatus can be provided.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a TV receiver which is an example of a digital TV broadcast receiving apparatus. A TV receiver A shown in FIG. 1 can receive a terrestrial digital broadcast having a configuration in which the analog tuner 91, the signal processing unit 51, and the output unit 61 are removed from the TV receiver shown in FIG. The substantially same parts are denoted by the same reference numerals.

  The TV receiver A includes an antenna ANT, a tuner set 1, a control unit 2, a memory 3, a control program storage unit 4, a signal processing unit 5, an output unit 6, a display unit 7, and an operation input unit. 8 and.

  The antenna ANT receives radio waves of terrestrial digital broadcasting. The antenna ANT is connected to the tuner set 1, and radio waves received by the antenna ANT are sent to the tuner set 1. The tuner set 1 includes a digital tuner 11 and a tuner controller 12 that drives the digital tuner 11.

  The digital tuner 11 selects a terrestrial digital broadcast signal from the radio wave of the terrestrial digital broadcast received by the antenna. The tuner controller 12 is driven in response to an instruction from the control unit 2 and controls the channel selection operation of the digital tuner 11 and manages the channel obtained by the channel selection operation.

  The memory 3 is a storage medium for storing various data held by the TV broadcast receiving apparatus, and includes, for example, a read-only ROM (Read Only Memory), a writable RAM (Random Access Memory), and the like. Examples of the various data include frequency data for each broadcasting station, OSD display image data, EPG data, and the like.

  The control unit 2 is for controlling the driving of the tuner set 1 and includes an arithmetic processing unit such as a CPU or a microcomputer. The control unit 2 and the tuner set 1 are connected to each other through an interface called an I2C bus, although not limited thereto.

  The control unit 2 controls the tuner set 1 in accordance with a control program stored in the control program storage unit 4. The control program storage unit 4 is a storage device provided in the control unit 2 and stores a digital control program for controlling the tuner set 1. Examples of the control program storage unit 4 include a read-only ROM. The control program storage unit 4 is the same as that used in the TV receiver B shown in FIG. 3, and also stores an analog control program for controlling the analog tuner.

  The terrestrial digital broadcast signal received by the digital tuner 11 is demodulated / error-corrected by the signal processing unit 5, converted into content data (such as MPEG), and sent to the display unit via the output unit 6. The output unit 6 incorporates a D / A converter that converts digital content data into analog, which is converted into an analog signal and sent to the display unit 7. Examples of the display unit 7 include a video display unit such as a CRT, a liquid crystal panel, and a plasma display panel. The broadcast signal demodulated by the signal processing unit 5 includes information such as video, audio, electronic program guide (DEPG), and data.

  In the TV receiver, a reception setting operation for driving the digital tuner 11 and receiving terrestrial digital broadcasting is performed simultaneously with activation. The reception setting for receiving the terrestrial digital broadcast is an operation specific to the digital broadcast such as a channel selection operation, a DEPG acquisition operation, and a time adjustment operation.

  The operation input unit 8 is a group of buttons for the user to operate the TV receiver A. Although not shown, the operation input unit 8 includes a power button, a channel selection button, a volume button, an input switching button, and the like. Yes. The operation input unit 8 is connected to the control unit 2, and an operation input by the operation input unit 8 is sent to the control unit 2, and the control unit 2 performs control according to the input operation.

  FIG. 2 shows a flowchart of an example of the reception setting operation of the TV receiver according to the present invention. In response to the input from the operation input unit 8, the TV receiver A is activated (step S11). When the TV receiver A is activated, power is supplied to the control unit 2, and the control unit 2 transmits an activation signal to the tuner controller 12 via the I2C bus (step S12).

  The controller 2 determines whether or not a response signal called ACK is output from the tuner controller 12, that is, the controller 2 checks reception of an ACK signal (step S13). The ACK signal is a response signal to the activation signal sent from the tuner controller 12 to the control unit 2 when the tuner set 1 includes the analog tuner 91.

  That is, when the control unit 2 receives the ACK signal (YES in step S13), the control unit 2 recognizes that the tuner set 1 has the analog tuner 91 (configuration of the TV receiver B shown in FIG. 3). If no ACK signal is received (NO in step S13), it is recognized that the tuner set 1 has only the digital tuner 11 (configuration of the TV receiver A shown in FIG. 1).

  When the control unit 2 receives the ACK signal (YES in step S13), the control unit 2 reads out the analog control program and the digital control program from the control program storage unit 4 (step S14). At this time, the control unit 2 reads out data necessary for reception setting such as frequency data for each broadcasting station and OSD display image data corresponding to terrestrial analog broadcasting and terrestrial digital broadcasting recorded in the memory 3 (step S14). ).

  Based on the analog control program, the control unit 2 performs reception settings (channel selection, EPG acquisition, OSD preparation, etc.) for receiving terrestrial analog broadcasting (step S15). Also, after the reception setting for terrestrial analog broadcasting is completed, reception settings (channel selection, DEPG acquisition, OSD preparation) for receiving terrestrial digital broadcasting are performed (step S16). As described above, the start control of the TV receiver in which the tuner set 9 shown in FIG. 3 includes the analog tuner 91 and the digital tuner 11 is completed.

  In the case of the TV receiver A having only the digital tuner 11 shown in FIG. 1, when the control unit 2 cannot receive an ACK signal after waiting for a predetermined time (NO in step S13), the control unit 2 receives the ACK signal. Therefore, it is determined that the tuner set 1 does not include the analog tuner 91. And the control part 2 reads a digital control program from the control program memory | storage part 4 (step S17).

  After that, reception settings (channel selection, DEPG acquisition, OSD preparation) for receiving terrestrial digital broadcasting are performed (step S16). As described above, the start control of the TV receiver A in which only the digital tuner 11 is provided in the tuner set 1 shown in FIG.

  As described above, the tuner set 1 is the TV receiver B having the analog tuner 91 and the digital tuner 11 and the TV receiver A having the tuner set 1 having only the digital tuner. 12. It can be operated using the control program storage unit 4 and the control program stored in the control program storage unit 4, and it is not necessary to design and create each TV receiver A separately. Can be reduced.

  In the above embodiment, a TV receiver is described as an example of a TV broadcast receiving apparatus. However, the present invention is not limited to this, and the TV receiver can be widely used for receiving a TV broadcast such as a DVD player, a DVD recorder, or a VTR. It is possible to adopt.

  As mentioned above, although embodiment of invention was described concretely, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary. A plurality of features described in each embodiment may be provided.

  The present invention can be applied to a TV broadcast receiving apparatus that can receive a TV broadcast.

It is a block diagram of TV receiver concerning the present invention. It is a flowchart which shows the control method of the TV broadcast receiver concerning this invention. It is a block diagram of the conventional TV receiver.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tuner set 11 Digital tuner 12 Tuner controller 2 Control part 3 Memory 4 Control program memory | storage part 5, 51 Signal processing part 6, 61 Output part 7 Display part 8 Operation input part 9 Tuner set 91 Analog tuner

Claims (8)

A tuner set that includes digital receiving means capable of receiving at least terrestrial digital broadcasting and capable of receiving TV broadcasting of a plurality of channels;
Control means for controlling the operation of the tuner set;
A control program storage means storing a digital control program for controlling the digital reception means and an analog control program for controlling the analog reception means for receiving terrestrial analog broadcasting;
In a TV receiver having display means,
The control means transmits an activation signal to the tuner set, and when a response signal is transmitted from the tuner set, it recognizes that the tuner set includes the analog reception means, and the response signal is not transmitted. When recognizing that the tuner set is not equipped with the analog receiving means,
When the control means recognizes that the tuner set includes the analog reception means, the analog control program and the digital control program are read from the control program storage means, and terrestrial analog broadcast tuning and terrestrial Select a digital broadcast station,
When the tuner set recognizes that the analog receiving means is not provided, the digital receiver reads the digital control program from the control program storage unit and selects the terrestrial digital broadcast. A TV broadcast reception control apparatus for controlling a tuner set, comprising a digital receiving means capable of receiving at least a digital TV broadcast and capable of receiving a TV broadcast of a plurality of channels,
Inspecting whether the tuner set is provided with an analog receiving means capable of receiving an analog TV broadcast, and confirming that the analog receiving means is not provided, the reception setting of the digital TV broadcast is performed. A TV broadcast reception control device characterized.   The inspection transmits an activation signal to the tuner set, and when a response signal is transmitted from the tuner set, the tuner set recognizes that the analog reception means is provided, and the response signal is not transmitted. 3. The TV broadcast reception control apparatus according to claim 2, wherein the operation of recognizing that the tuner set is not equipped with the analog reception means is performed. The TV broadcast reception control device includes a digital control program for controlling the digital reception means and a control program storage means for storing an analog control program for controlling the analog reception means,
4. The TV broadcast reception control apparatus according to claim 2, wherein the digital control program is read when the digital TV broadcast reception is set.   5. The TV broadcast reception control apparatus according to claim 2, wherein the analog TV broadcast is a terrestrial analog broadcast, and the digital TV broadcast is a terrestrial digital broadcast.   6. The TV broadcast reception control apparatus according to claim 2, wherein the digital TV broadcast reception setting includes channel selection and reading of OSD display image data. A tuner set comprising digital receiving means capable of receiving at least a plurality of channels of digital TV broadcasts, a control means for controlling the tuner set, a digital control program for controlling the digital receiving means, and the ground A control method for a TV broadcast receiving apparatus, comprising: a control program storage means storing an analog control program for controlling an analog reception means for receiving a wave analog broadcast,
A confirmation signal transmission step of transmitting a confirmation signal for confirming whether or not the analog reception means is present in the tuner set from the control means when the TV broadcast reception device is activated;
After transmitting the confirmation signal, a response signal transmitting step of transmitting a response signal from the tuner set to the control means only when the tuner set includes the analog reception means;
A response signal confirmation step in which the control means confirms reception of the response signal;
This is performed after the control means confirms reception of the response signal in the response signal confirmation step, and the control means reads both the analog control program and the digital control program from the control program storage means, A first reception setting step for performing reception settings and digital TV broadcast reception settings;
This is performed after the control means has failed to confirm the reception of the response signal in the response signal confirmation step, and the control means reads only the digital control program from the control program storage means, and performs reception setting for digital TV broadcasting. And a second reception setting step. A control method for a TV broadcast receiving apparatus. Control of a TV broadcast receiving apparatus comprising at least a digital receiving means capable of receiving a digital TV broadcast, and having a tuner set capable of receiving a TV broadcast of a plurality of channels and a control means for controlling the tuner set. A method,
An analog confirmation step of confirming whether the tuner set is provided with an analog reception means for receiving an analog TV broadcast when the TV broadcast reception device is activated;
A first reception setting step for performing reception setting for the analog TV broadcast and reception setting for the digital broadcast when the presence of the analog reception means is confirmed in the analog confirmation step;
A control method for a TV broadcast receiving apparatus, comprising: a second reception setting step of performing reception setting of the digital TV broadcast when the analog confirmation step cannot confirm the presence of the analog reception means.

Images