Sony Corporation

Shinji Takada

Koichi Goto

Ikuo Tsukagoshi

Hajime Inoue

Kenji Kobayashi

Katsumi Matsuno

Norihisa Shirota

Tokuya Fukuda

Kazuo Yamagiwa

Yukihiko Machida

Toru Shiono

Keiichiro Shimada

Toshitaka Senuma

Mitsugu Ishihara

Koji Okumoto

The present invention realizes a video coding apparatus that is simple in configuration and can avoid video display quality deterioration due to an overrun of video coding processing. The video coding apparatus is provided with a coding means for bringing video into coding processing on a frame basis with a first coding processing method; a processing time detecting means for detecting coding actual processing time required for coding processing on the frame; a delay calculating means for calculating processing delay time of coding processing on the frame based on coding predicted processing time given to the coding processing and the coding actual processing time; a coding load controlling means for, in a case where the processing delay time on the frame is greater than or equal to a predetermined threshold value, causing a subsequent frame to undergo coding processing with a second coding processing method bearing coding processing load lower than in said first coding processing method, and thereby processing time of frames after occurrence of an overrun is shortened for recovery from the overrun so that a frame skip due to occurrence of an overrun is prevented to enable avoidance of video quality deterioration.

Video coding apparatus, method of controlling video coding and program of controlling video coding

A signal from a tuner is outputted to a primary display. An analog signal from another tuner is digitally compressed, subjected to an encrypting process, transmitted to a secondary display by a wireless LAN, and displayed by an LCD of the secondary display. An output of a digital tuner is displayed by the primary display. A video signal of 480I is transmitted to the secondary display. A signal inputted through the Internet is decoded and sent to the primary display. The signal is sent to the secondary display in the compressed state without being decoded and the decoding process is executed in the secondary display.

Receiving apparatus, receiving method, and transmitting/receiving apparatus

The present invention can reliably adjust the lip-sync between an video and audio at a decoder side, without making the viewer feel strangeness. In this invention, the encoded video frames to which video time-stamps VTS are attached and the encoded audio frames to which audio time-stamps ATS are attached, all received, are decoded, generating a plurality of video frames VFand a plurality of audio frames AF. The video frames VFand audio frames AFare accumulated. Renderersandcalculate the time difference resulting from a gap between the reference clock for the encoder side and the system time clock stc for the decoder side. In accordance with the time difference, the timing of outputting the plurality of video frames, one by one, on the basis of a timing of outputting the plurality of audio frames, one by one. Hence, the lip-sync can be achieved, while maintaining the continuity of the audio.

Content receiving apparatus, method of controlling video-audio output timing and content providing system

This invention realizes correct adjustment of lip-syncing of video and audio on a decoder side. According to this invention, a plurality of encoded video frames given video time stamps VTS and a plurality of encoded audio frames given audio time stamps ATS are received and decoded from an encoder side, and the resultant plurality of video frames VFand plurality of audio frames AFare stored, a time difference which occurs due to a difference between the clock frequency of the reference clock of the encoder side and the clock frequency of the system time clock stc of the decoder side is calculated by a rendererand video frame output timing for sequentially outputting the plurality of video frames VFframe by frame is adjusted based on audio frame output timing for sequentially outputting the plurality of audio frames AFframe by frame, according to the time difference, resulting in realizing the lip-syncing with keeping sound continuousness.

Content receiving apparatus, video/audio output timing control method, and content provision system

The invention provides a multimedia terminal equipment which can reproduce and output an object broadcasting program irrespective of a providing medium and so forth of the program. The multimedia terminal equipment includes a digital signal processing circuit in the form of a digital signal processor which is programmable to process various kinds of digital broadcasting signals of different formats. A program to be used for processing of an object digital signal is read out from a ROM by a host CPU in response to a selection input from a user and supplied to the digital signal processing circuit. In accordance with the program, the digital signal processing circuit processes a digital signal outputted from a traffic controller in response to the selection input of the user.

Multimedia terminal equipment and digital processing method

A method of testing an electronic apparatus which eliminates a control signal line for setting an integrated circuit to a test mode and a test mode select terminal of an external terminal section and wherein fetching of test data and transfer of the thus fetched test data are performed in an integrated operation. In each of the integrated circuits, a boundary scan control circuit discriminates a category code at the top of data inputted from a serial input terminal to control a pair of switching circuits. When the category code represents a test mode, predetermined terminals of the switching circuits are selected so that input data are sent out to boundary scan cells. Fetching of parallel data from parallel input terminals and transfer to the boundary scan cells are performed at a time.

Testing method for electronic apparatus

A microcomputer-controlled electronic device such as a video camera has a signal processor for processing an input signal supplied thereto. The signal processor is controlled by a system controller comprising a microcomputer. The system controller supplies a test signal, read from a memory, to the signal processor, and receives a processed test signal from the signal processor. The system controller also assesses the processed test signal from the signal processor for adjustment of the signal processor based on a command from an adjusting device connected to the video camera, while at the same time controlling operation of the signal processor.

Microcomputer-controlled electronic device

A camera has a main camera body containing a main microprocessor, and exchangeable lens devices interchangeably mountable on the camera body and each containing an auxiliary microprocessor storing information identifying the respective exchangeable lens device and characteristics of the latter. Each exchangeable lens device includes an imaging lens assembly having elements controllable by drive motors for adjusting respective functions, and the auxiliary microprocessor controls such drive motors in response to position control signals from the main microprocessor and provides to the latter the stored identifying information and sensed position signals corresponding to the positions of the controllable elements of the respective imaging lens assembly. The main microprocessor provides the position control signals on the basis of at least the sensed position signals and condition sensing signals which correspond to the focused or other condition of an image projected by the imaging lens means onto an imaging element within the camera body.

Camera with exchangeable lens device removably mounted on a camera body

A communication system for video information apparatus for carrying out a communication between a video information apparatus and a peripheral apparatus arranged so that a communication is repeatedly carried out at a period synchronized with a signal of a vertical period having a constant phase relation relative to a vertical synchronizing signal.

Communication system for video information apparatus

An IC device has a first terminal for inputting date in the format for a four-line or two-line type bus line, and for outputting data, a second terminal for receiving a chip select signal, a third terminal for receiving a clock pulse, a fourth terminal for outputting data a first signal processor for receiving data from the first terminal in the format for a two-line type bus line and including an address signal and for outputting the data such first signal processor including a detector for detecting the address signal, a second signal processor for receiving the data supplied from the first terminal in the format of a four-line type bus line and outputting the data to the fourth terminal, the first and second signal processors being selectively enabled in accordance with the chip select signal, and a control unit for receiving the signal from the first or second signal processor and outputting the data to the first terminal or the first or second signal processors.

IC device compatible with input signals in the formats for two-line and

Servo control apparatus for controlling the speed and phase of a driven member. Reference signals, having a frequency determinative of the speed at which the member is driven, are compared to actual speed-representing signals in a servo loop, whereby the member is driven at the speed determined by the reference signals. An actual position-representing signal, representing the position, or phase, of the driven member, is derived. A window pulse generator generates window pulses corresponding to desired positions of the driven member. The occurrence of these position-representing signals within the duration of the window pulses is detected. A frequency modulating circuit modulates the frequency of the reference signals if the position-representing signals occur outside the window pulses, so as to adjust the speed and position, or phase, of the driven member until this member is driven such that its actual positions correspond to the desired positions. In accordance with a further aspect of this invention, the phase of the reference signals is adjusted such that the position-representing signals occur at a predetermined location within each window pulse. The driven member can be a rotary transducer or a movable record medium in, for example, a video signal recording/reproducing system.

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Kanagawa, Japan

Shinji Takada