Sony Corporation

Hiroaki Seto

Yoichi Matsumura

Katsumi Tahara

Eisaburo Itakura

Youichi Matsumura

Takao Suzuki

Tatsuya Kubota

Toshihiko Kitazawa

Hiroshi Meguro

Kyohei Koyabu

Norio Wakatsuki

Nobuhiro Chiba

Shusuke Ozawa

Kentaro Kojima

Junya Sato

To achieve a reduction in circuit size without causing output leakage from a frame memory. A frame memory temporarily stores a plurality of input video signals. A plurality of encoders perform compression coding on the video signals read from the frame memory. A control unit controls the operations of writing into and reading from the frame memory. The video signals are written into the frame memory at respective frame frequencies. The video signals are read from the frame memory at a common output frame frequency. The output frame frequency is assumed to be the highest frame frequency or more of the video signals.

Video processing apparatus and method for controlling video processing apparatus

A digital video data recording system has a signal source, a motion detector, an external memory for storing motion vector data, an encoder, a recorder, and a controller. The controller obtains motion vector data and quantization step size data in a preprocessing procedure, and encodes image data using the motion vector data read from the external memory and the quantization step size data and records the encoded image information on a recording medium in a recording process. The digital video data recording system can encode image information appropriately depending on the type of the image information, minimizes the consumption of electric energy by not effecting a motion detecting process in the recording process, and can record all the image information to be recorded on the recording medium.

Method of and system for recording image information and method of and system for encoding image information

The present invention relates to an apparatus and a method for recording/reproduction of images with which the visual effects of a plurality of images can be visually confirmed with ease. The apparatus includes a recording/reproduction section that records a plurality of input sets of video data and reads them from the recording mediums for reproduction; an arithmetic operation section that performs arithmetic operations by a method corresponding to an external instruction on the plurality of sets of video data reproduced by the recording/reproduction section; and a superimposition section that generates character-string data indicating the arithmetic operation method of the arithmetic operation section, superimposes the arithmetic video data produced by arithmetic operations of the arithmetic operation section and the character-string data and outputs the superimposed video data produced by the superimposition as outcome of arithmetic operations.

Recording/reproduction apparatus, and recording/reproduction method as well as stereoscopic images visual effects confirmation apparatus and stereoscopic image visual effects confirmation method

The present invention is an apparatus and method to remove delay fluctuations generated on a plurality of networks. A reception apparatusreceives ATM cells transmitted through a network-and a network-, converting the cells into a transport stream. At that time, the reception apparatusexpresses a PCR packet's timing of arrival at the reception apparatusby a count value obtained as a result of counting the number of clock pulses (clock pulses Nr) synchronous with a network clock signal of the network-. The reception apparatusalso computes a new PCR value W on the basis of the count value and the phase-difference information used as synchronization information. The reception apparatusthen computes a new PCR value X on the basis of an original PCR value E recorded from the beginning on the encoding side and the PCR value W, newly recording the PCR value X.

Communication apparatus, communication method and program

The present invention makes it possible to efficiently transmit data for statistical multiplexing which is required for control using statistical multiplexing. By utilizing private packets, respective encoding devices transmit encoding difficulties serving as the data for statistical multiplexing to a multiplexer () via the same transmission channels as encoded video data and audio data are transmitted. The multiplexer () conducts multiplexing processing on data supplied from the respective encoding devices at a first rate R1 larger than a transmission rate on a transmission channel of a subsequent stage, and outputs a transport stream (TS) including the private packets to a statistical multiplexing computer. In addition, the multiplexer () conducts multiplexing processing on data obtained by removing the private packets, at a second rate Rwhich is equal to the transmission rate on the transmission channel of the subsequent stage, and outputs a transport stream (TS) which does not include the private packets to the transmission channel of the subsequent stage.

Video data multiplexing device, video data multiplexing control method, encoded stream multiplexing device and method, and encoding device and method

The present invention makes it possible to efficiently transmit data for statistical multiplexing which is required for control using statistical multiplexing. By utilizing private packets, respective encoding devices transmit encoding difficulties serving as the data for statistical multiplexing to a multiplexer () via the same transmission channels as encoded video data and audio data are transmitted. The multiplexer () conducts multiplexing processing on data supplied from the respective encoding devices at a first rate R1 larger than a transmission rate on a transmission channel of a subsequent stage, and outputs a transport stream (TSincluding the private packets to a statistical multiplexing computer. In addition, the multiplexer () conducts multiplexing processing on data obtained by removing the private packets, at a second rate R2 which is equal to the transmission rate on the transmission channel of the subsequent stage, and outputs a transport stream (TS) which does not include the private packets to the transmission channel of the subsequent stage.

Video data multiplexer, video data multiplexing control method, method and apparatus for multiplexing encoded stream, and encoding method and apparatus

A transmission side of a communication apparatus of the present invention makes use of a clock signal synchronized with a network to transmit an arrival interval of a PCR packet in which a PCR value is included and a synchronization residual. A reception side of the communication apparatus of the present invention calculates delay fluctuations caused by the network from the arrival interval and the synchronization residual included in the received PCR packet and modifies the PCR value based on the delay fluctuations.

Communication apparatus which handles a time stamp

An information transmitter includes a signal separator for separating a packet line multiplexed by another transmitting device into a packet line of element data and a packet line of second additional information on the element data; an additional information generator for generating third additional information integrated by combining and regenerating the second additional information and first additional information; and a controller for controlling packet identifiers which are added at encoders and instructing a plurality of encoding to add packet identifiers that are different from each other. Thus, the overlaps of additional information and packet identifier information can be easily avoided with a simple construction.

Information transmitter device and transmitting method

Synchronous information indicates a difference (&bgr;) between a PCR value E and a counter value N (&equals;3240000), if the third PCR packet is assumed to arrive at a transmitting apparatus at the time (time t1) the count value N becomes 3240000, on the basis of a difference (&agr;) between the PCR value E3 and the count value N3, both generated while as many clocks as (count value N3&mdash;reference clock value B) are being counted. Hence, the delay fluctuation generated on a network can be eliminated.

Communication apparatus, communication method and storage medium

Method of and system for recording image information and method of and

A data transmission method for transferring predetermined transmission data between a slave side and a master side to which the predetermined transmission data is transmitted and which are connected through a predetermined communications network, wherein the master side generates an independent synchronization clock signal and transmits synchronization data showing the frequency of the independent synchronization clock signal to the slave side, the slave side generates a slaved synchronization clock signal synchronized with the synchronization clock signal of the master side based on the synchronization data transmitted from the master side and generates the transmission data and transmits it to the master side in synchronization with the generated slaved synchronization clock signal, and the master side receives the transmission data transmitted from the slave side in synchronization with the independent synchronization clock signal.

Growing community of inventors

Kanagawa, Japan

Hiroaki Seto