Sony Corporation

Jun Takeshita

Yoichi Hirota

Tomoyuki Sato

Tetsuji Sumioka

Hidetoshi Yamaguchi

Hiroaki Itou

Chikara Mizuno

Tomoaki Kudo

Akihiro Egawa

Yasunori Enokizono

An information processing apparatus includes a first processing circuit having a capability of decoding encoded stream data input to the first processing circuit and a capability of detecting tampering on encryption information, the first processing circuit being configured to, if tampering is detected, add a tamper flag to the tampered data, a second processing circuit configured to perform a predetermined process on data output from the first processing circuit, and, if the data includes the tamper flag, add tamper information indicating the fact being subjected to tampering to the processed data, and a third processing circuit configured to receive data output from the second processing circuit and process the received data such that when the received data does not include tamper information, the received data is processed in a normal manner, but when the received data includes tamper information added thereto, the received data is processed differently from the normal manner.

Information processing apparatus

An information processing apparatus includes: video-signal transmitting and receiving means for transmitting/receiving a video signal to/from one or more external apparatuses; image-quality-improvement processing means for applying image quality improvement processing based on an image quality improvement processing function of the information processing apparatus to the video signal; holding means for holding performance of the image quality improvement processing function concerning the image-quality-improvement processing means; CEC transmitting means for transmitting the performance held by the holding means to the external apparatuses; receiving means for receiving performances of image quality improvement processing functions of the one or more external apparatuses; and control means for comparing the performance of the image quality improvement processing function and the performances of the image quality improvement processing functions of the one or more external apparatuses received by the receiving means and controlling, based on a comparison result, execution of the image quality improvement processing.

Information processing apparatus and method, computer program, and information processing system

A data stream inputted to the inventive system from the outside is supplied to a PID (packet ID) extracting circuit, in which a PID is detected from a transport stream TS regardless of whether the transport stream TS is a full transport stream TS or a partial transport stream TS. The PID extracting circuittransmits the thus extracted PID and data stream to a TS replacing/deleting circuit. The TS replacing/deleting circuithas n 188-byte buffers and is able to set replaced TS packets to the buffers. A control circuitsuch as a CPU (central processing unit) designates m PIDs relative to the respective buffers and designates the respective PIDs as the PID of the packet to be deleted or the PID of the packet to be replaced. Then, the TS replacing/deleting circuitcompares the PID received from the PID extracting circuitwith the PID designated by the control circuit. If they are identical to each other, then the PID that is set to be replaced is replaced and the PID that is set to be deleted is deleted. Thus, the packet indicative of attribute of data can be replaced satisfactorily.

Signal processing apparatus and associated methodology for controlling the recording of data streams

Growing community of inventors

Tokyo, Japan

Jun Takeshita