Funai Electric Company Ltd.

Yasuhiro Inui

Toshihiro Takagi

Manabu Yamamoto

Yusuke Nishida

Takahiro Katayama

Kazuhiko Tani

Yoshihisa Nagamura

Tatsuo Miyagawa

Kazuhide Ishihara

Kenji Okamoto

Shusuke Narita

Keisuke Tsukamoto

In a digital broadcast receiving apparatus, a receiver receives video packets or audio packets configuring a program of digital broadcast. A selector selects a part of the video packets or the audio packets of each channel received by the receiver. A determination unit determines whether or not decoding of the part of the packets selected by the selector has been completed normally. A decision unit decides requirement for descramble processing of each channel based on the determination result of the determination unit.

Digital broadcasting receiving apparatus and scramble channel deciding method capable of shortening time required for scramble decision

A television receiver including: a reception control unit which judges whether reception of the cable television broadcast signal has succeeded, by setting the channel data composed of the combination of the frequency table stored in the first storage unit and the modulation method stored in the second storage unit, the modulation method corresponding to the tuned channel. The reception control unit sequentially changes the channel data to be set in a previously determined order to make the reception unit receive the cable television broadcast signal corresponding to the tuned channel when the reception control unit judges that the reception of the cable television broadcast signal has not succeeded.

Television receiver, channel tuning method for automatically updating channel data and channel scan method for more rapid and reliable channel scanning

A television receiver having: an external input terminal to receive a non-RF signal from a first external device, the non-RF signal being a video and/or audio signal which is not modulated into a radio frequency signal; an RF input terminal to receive an RF signal from a second external device, the RF signal being generated by modulating a video and/or audio signal, and an external-input switching unit to perform switching selection to the non-RF signal received through the external input terminal, wherein the external-input switching unit is capable of tuning in a frequency of RF signal transferred through the RF input terminal to perform switching selection to a receiving channel when the detecting unit detects that an RF signal has been transferred through the RF input terminal.

Receiving apparatus and television receiver

An image output device includes a reception unit, an output unit, and a selection reception unit. The reception unit receives a change of setting from a display mode, which is currently set to one of a plurality of display modes, to a different display mode. The output unit outputs an image signal based upon a display mode which has been received. Furthermore, when the receipt of a change of setting by the reception unit has been initiated, the output unit outputs an image for mode selection in which an image based upon the display mode which is currently set, and an image based upon another display mode among the plurality of display modes which is not currently set, are arrayed. The selection reception unit receives a selection of one display mode among the other display modes which are not currently set, among the plurality of display modes.

Image output device for outputting moving images in a plurality of display modes

A broadcast receiving device includes a table storage component, a viewing control acquisition component, a first determination component and a table production component. The viewing control acquisition component acquires program viewing control information including a column number and a row number. The first determination component determines whether or not to satisfy one of a column determination condition that the column number is greater than a first specific number of a first viewing control table and a row determination condition that the row number is greater than a second specific number of the first viewing control table. The table production component produces a second viewing control table having a number of columns corresponding to the column number and a number of rows corresponding to the row number when the first determination component determines that one of the column determination condition and the row determination condition is satisfied.

Broadcast receiving device

A broadcast signal receiving device includes a receiving unit, a registering unit and a channel selection unit. The receiving unit receives digital broadcast signals including a plurality of sub-channels on each of a plurality of physical channels. The registering unit registers an indicator indicating whether or not each of the sub-channels is an audio channel in an indicator registration region of a channel map, which stores channel map information relating to a correspondence between the physical channels and the sub-channels. The channel selection unit selects the sub-channels based on the channel map information and the indicator stored in the indicator registration region.

Broadcast signal receiving device and method

A digital broadcast receiving apparatus, includes: a channel information memory unit which stores the physical channel, a virtual channel, the sub channels, and scrambling information which indicates whether the sub channels are scrambled or not so as to refer the scrambling information to the sub channels; a scrambling judgment unit which judges whether the broadcast data of the sub channels, which is scanned by the scanning unit is scrambled or not; a memory control unit which stores a judgment result obtained by the scrambling judgment unit in the channel information memory unit as the scrambling information; and an updating program which updates the scrambling information in the channel information memory unit by executing the scanning unit, the scrambling judgment unit, and the memory control unit at the predetermined timing; and wherein when the judgment result obtained by the scrambling judgment unit indicates that all of the sub channels in the physical channel are scrambled, the memory control unit stores information that the physical channel is a channel which needs to be scanned when the scrambling information is updated by the updating unit.

Digital broadcast receiving apparatus

Disclosed a digital-broadcasting receiving apparatus including: a scramble judgment member, a decode judgment member, a first registration member to register the sub-channel as a viewable channel when the decode judgment member judges that the broadcast data can be decoded, a second registration member to register the sub-channel as a viewable channel when the scramble judgment member judges that the broadcast data is not scrambled, a judgment member, a channel registration control member to register the sub-channel by the first registration member when the judgment member judges that the scramble judgment does not accord with the decode judgment in all kinds of the scramble judgment data, and refers to one of a plural kinds of scramble judgment data and registers the sub-channel by the second registration member when it judged that the scramble judgment obtained by referring to the one scramble judgment data accords with the decode judgment.

Broadcasting receiving apparatus and broadcasting receiving method

A TV receiver preliminarily measures and stores, in a memory, data of best receiving directions, each giving maximum signal intensity, of a multi-directional antenna for receivable channels. When the antenna rotationally shifts physically for some reason, one channel is selected and subjected to measurements by an omni-directional scanning again to determine a new best receiving direction. A receiving direction number difference between the stored best receiving direction and the new best receiving direction of the same channel is determined. Using the receiving direction number difference for the one channel, all data stored in the memory are renewed at one time, the data being the best receiving direction numbers and the signal intensities therefor for all the channels. The antenna direction can be quickly adjusted to the rotational shift by new measurements for one channel, without requiring time to make unnecessary measurements for all channels, achieving a best receiving condition steadily.

Digital television broadcast signal receiver

Disclosed a digital-broadcasting receiving apparatus including: a scramble judgment member, a decode judgment member, a first registration member to register the sub-channel as a viewable channel when the decode judgment member judges that the broadcast data of the sub-channel can be decoded, a second registration member to register the sub-channel as a viewable channel when the scramble judgment member judges that the broadcast data of the sub-channel is not scrambled, a judgment member, a channel registration control member to register the sub-channel by the first registration member when the judgment member judges that the scramble judgment does not accord with the decode judgment, and registers the sub-channel by the second registration member when the judgment member judges that the judgment obtained by the scramble judgment member accords with the judgment obtained by the decode judgment member.

A multi-directional antenna connected with a digital television broadcast signal receiver is arranged not to move one full turn instantaneously in response to an abrupt drop down in the intensity of a received signal thus to avoid any downward overshooting of the intensity of the received signal and eliminate any useless direction searching time while remains favorably controlled to face in the direction where the intensity of the received signal is at optimum. More specifically, the maximum of the intensity of a received signal at each channel is measured and the threshold is set to a level lower than the maximum. When the intensity of a received signal has dropped down from the threshold, the antenna remains not turned within a predetermined period of marginal time. The antenna is moved one full turn only when the intensity drops down from the threshold and stays continuously over the predetermined period of marginal time. Then, the maximum of the intensity of the received signal is modified and stored for future use.

In a broadcasting receiver having a function to set and select an operation mode of the receiver for each user based on input by a plurality of users, the operation mode is selected for each user to make a user setting and stored in a memory in correlation with a predetermined input pattern of an operation key. When having received a user's input in the predetermined pattern, the receiver refers to the memory to select a user setting that corresponds to this input pattern, thus switching the operation mode. It is thus possible to identify the operation mode for each user in use by simple operations.

Broadcasting receiver having operation mode selection function

A channel selection device of the invention used in a digital/analog broadcasting receiver, upon reception of a channel changing instruction sent from input device, tries to select a desired channel by referencing its VCT if it can find channel information in a memory and, if it could not find the desired channel and failed in channel selection, obtains the latest VCT to thereby select such a channel in the VCT that has the smallest sub-channel number in the same main channel or select such a channel that has the smallest sub-channel number in the same physical channel. Thus, if a channel specified in the channel changing instruction sent from the user has no broadcast therethrough and failed to be selected, an appropriate channel is selected automatically, thus avoiding a state that nothing is displayed on the display.

Channel selection device for use in digital/analog broadcasting receiver and digital/analog broadcasting receiver equipped with the same

When a digital broadcast is currently extracted and a switching direction instruction is accepted, determination is made as to which of a CH number (analog number) next to a currently extracted channel in the switching direction according to the order indicated in an analog CH map and a CH number (digital number) next to the currently extracted channel in the switching direction according to the order indicated in a digital channel map is closer to the number of the currently extracted channel (extracted number). When closer to the analog number, the channel is switched to the analog number. When closer to the digital number, the channel is switched to the digital number. Thus, the channel of analog and digital broadcasts can be switched in a seamless manner.

Broadcast receiver device, broadcast receiving set, and channel switching method

A digital/analogue TV receiver having a function for displaying an EGP screen comprises a controller for displaying the EPG (electric program guide) screen including channels and TV program information on a display apparatus, and a memory for storing a channel map memorizing the TV program information correspondingly to the channels. The controller renews the channel map stored in the memory with using VCT (virtual channel table) information and EIT (event information table) information which are delivered with the TV broadcasting signals while image signals of a TV program is outputted to the display apparatus. The controller uses the TV program information memorized in the channel map stored in the memory when the EPG screen is displayed on the display apparatus.

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Daito, Japan

Yasuhiro Inui