Hitachi, Ltd.

Hitachi Maxell, Limited

Hitachi Consumer Electronics Co., Ltd.

Other

Takanori Eda

Satoru Takashimizu

Kenji Katsumata

Yuji Yamamoto

Satoshi Iimuro

Shuko Sei

Takehito Kishi

Naoko Saito

Yasuhisa Ichifuji

Toshinori Murata

Takumi Okamura

Masaru Nanki

Masuo Oku

Hironori Komi

Shigeru Hirahata

Isao Nakagawa

Yasutaka Tsuru

Shigeru Yoneda

Keiro Shinkawa

Toshihiro Kato

Haruki Takata

Toshio Nagashima

Tsutomu Noda

Shinobu Torikoshi

Yumi Bando

Shoji Kimura

Kouichi Ishibashi

Kazuyuki Takada

Moriyoshi Akiyama

Tomohisa Ooishi

Iwao Ishinabe

Satoshi Imuro

Digital broadcast receiving apparatus including: a receiver receiving at least three different video programs in one transport stream, including a plurality of different video signal formats having different combination of scan lines and scan method; an isolator to isolate a video signal; a decoder to decode the video signal; a processor to execute a plurality of video processing sub software programs, providing video processing according to a different combination of the number of scan lines and a scan method; a controller using information obtained from the digital multiplexed signal to determine a combination of the number of scan lines and a scan method, and selecting one video processing of the video processing sub software programs to perform video processing according to the determined combination of the number of scan lines and the scan method; and a display to display the video signal processed by the processor.

Digital broadcast receiver unit

A digital receiver including: a receiver; a decoder; and a display controller, with a display having a first display zone displaying at least a part of the title included in program information and a second display zone displaying an entirety of the title, under control of the display controller; wherein the display controller includes an input data amount calculator calculating an amount of input data for the first display zone inputted from memory, and a comparator to compare the amount calculated with an amount of displayable data, and when the amount of the input data is larger than the amount of the displayable data, a part of the title and a symbol indicative of omission are displayed, and when the first display zone is selected, an entirety of the title in the selected first display zone is displayed in the second display zone.

Broadcasting and communication receiver apparatus

A display apparatus coupled with a video processing apparatus including: an input unit which inputs a video signal scanned by one of the plurality of scanning methods and a scanning method data detected based on said video signal from said video processing apparatus, a display which displays said video signal inputted by said input unit, a controller which controls as said display displays said video signal based on said scanning method data inputted by said input unit.

A digital receiver to effect display of at least one of video or a plurality of background information blocks each indicative of a program time period, including: a display change controller provided in the digital receiver, which changes a displayed shape of a particular background information block indicative of a program time period in the grid when the program time period indicated by the particular background information block exceeds a program time period which is displayed in a first prescribed zone; a full display controller controlling display of the program start time and program end time to occur concurrently together with the selected background information block on a same display whenever the selected background information block is selected.

A video processing apparatus including: an input device which inputs an encoded video signal; a decoder which decodes the encoded video signal having a video format which is one of a plurality of video formats to produce a decoded video signal; a processor which processes the decoded video signal by using a scanning method information of the decoded video signal, to produce a processed video signal; and an output device which outputs both of the video signal processed by using the scanning method information and scanning method information of the processed video signal, from the video processing apparatus to an external video processing apparatus.

A digital broadcast receiver unit for determining the scanning method of the video signal of the selected program when signals multiplexed through a plurality of different scanning methods are received, processing these video signals by an appropriate video signal processor constituting a video encoder, and then outputting the result. This digital broadcast receiver unit includes a demodulator to tune in the channel of the received signal and perform demodulation, a multiplex isolator to isolate the audio, video and other types of data coded from the multiplex signals output from the demodulator, a decoder to decode the video signal and audio signal from the multiplex isolator, a plurality of video processors performing respectively different corresponding scanning methods and connected to an output of the decoder, an output selector to select from among outputs from the plurality of video processors, and a controller to control the output selector and determine the scanning method of the video signal of the selected program and also perform the appropriate processing based on the scanning method for the selected video signal.

A broadcasting and communication receiver apparatus for displaying program-associated information, in which, in addition to a predetermined display zone, another display zone is provided so that display data of specific information selected by a viewer is wholly displayed and, when the display data is displayed as omitted, a symbol indicative of the information omission is attached to the display data to display the display data within the limited display zone. The apparatus comprises a receiver for receiving the program-associated information including a title, start and end times of a broadcast program together with a video signal and an audio signal, a decoder for decoding the program-associated information, a display unit for displaying the decoded program-associated information thereon, a command receiver for receiving an input signal from a remote controller or from a key or keys provided to the receiver, and a display controller for controlling a display screen on the basis of the input signal.

In a digital broadcasting receiver, an identification information of the image or audio signal detected from the received digital information, and an identification information stored in an identification information memory means are compared one after another. The image/audio mute means is controlled not to output a disordered image/audio signal on the basis of the comparison result. On the basis of the comparison result, the viewer is informed by the identification information output means that resolution/quality of the received image/audio signal is changed. The identification information showing the image resolution and audio quality is inserted into digital information, and the digital information with the identification information is transmitted in a digital broadcasting transmitter.

Digital broadcasting receiver

A demultiplexing and decoding apparatus for coded audio and video data realized with a simple circuit construction and reduced processing load, which processes a packet with higher priority over other packets, prior to the other packets. A plurality of TS packet buffers and , for storing input TS packets until they are interpreted, are set in a RAM , and processing priority orders are respectively set in the buffers. A PID filter demultiplexes a TS packet, with a PID designated in PID table , from a supplied transport stream. A TS packet with higher priority is stored into the TS packet buffer , while a TS packet with lower priority is stored into the TS packet buffer . Regardless of the input order, the TS packet stored in the TS packet buffer is processed by the CPU prior to the TS packet stored in the TS packet buffer

Demultiplexing and decoding apparatus for coded audio and video data

An arrangement to automatically change between a scrambled digital data output and descrambled digital data output of a receiver by inserting a control signal conforming to a program provider's policy into a transmission signal. In a receiving side, a descrambler descrambles a channel-decoded signal, a demultiplexer demultiplexes the multiplexed signal from the descrambler into encoded video and audio data for output to a source decoder, and extracts the control information inserted in the transmitting side for output to a switch or CPU. The CPU decrypts a control signal from the control information extracted by the demultiplexer to determine whether the scrambled digital signal or descrambled digital signal is appropriate for output, and outputs a changeover control signal depending on the result of decryption. A switch selects the output of a scrambled digital signal from a stage prior to the descrambler, or a descrambled digital signal from a stage subsequent to the descrambler, depending on the changeover control signal from the CPU. Thereby, a scrambled digital signal output or descrambled digital signal output can automatically be changed over depending on a program provider's policy.

Digital broadcast transmitting and receiving system and transmitting and

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Yokohama, Japan

Takanori Eda