Abstract: A picture encoding system conversion device and a code rate conversion device for realizing the conversion taking into account both time delay and picture quality using the information on the code volume of the encoding parameters, input and output buffers and an input bitstream. There are provided a decoder 1 including an input buffer 21, a VLD unit 22, an inverse quantizer 23, an IDCT unit 24, an adder 35, a frame memory 26 and a motion compensation prediction unit 27; an encoder 2 including an adder 31, a DCT unit 32, a quantizer 33, an inverse quantizer 34, an IDCT unit 35, an adder 36, a frame memory unit 37, a motion compensation prediction unit 38, a VLD unit 39 and an output buffer 40; and a transcoder controller 3 including a decoder monitor unit 51, an input buffer monitor unit 52, a reception transmission channel monitor 53, a sending transmission channel monitor 63, an output buffer monitor unit 62 and a quantization step controller 74.

Abstract: A picture encoding system conversion device and a code rate conversion device for realizing the conversion taking into account both time delay and picture quality using the information on the code volume of the encoding parameters, input and output buffers and an input bitstream. There are provided a decoder 1 including an input buffer 21, a VLD unit 22, an inverse quantizer 23, an IDCT unit 24, an adder 35, a frame memory 26 and a motion compensation prediction unit 27; an encoder 2 including an adder 31, a DCT unit 32, a quantizer 33, an inverse quantizer 34, an IDCT unit 35, an adder 36, a frame memory unit 37, a motion compensation prediction unit 38, a VLD unit 39 and an output buffer 40; and a transcoder controller 3 including a decoder monitor unit 51, an input buffer monitor unit 52, a reception transmission channel monitor 53, a sending transmission channel monitor 63, an output buffer monitor unit 62 and a quantization step controller 74.

Abstract: A picture encoding system conversion device and a code rate conversion device for realizing the conversion taking into account both time delay and picture quality using the information on the code volume of the encoding parameters, input and output buffers and an input bitstream. There are provided a decoder 1 including an input buffer 21, a VLD unit 22, an inverse quantizer 23, an IDCT unit 24, an adder 35, a frame memory 26 and a motion compensation prediction unit 27; an encoder 2 including an adder 31, a DCT unit 32, a quantizer 33, an inverse quantizer 34, an IDCT unit 35, an adder 36, a frame memory unit 37, a motion compensation prediction unit 38, a VLD unit 39 and an output buffer 40; and a transcoder controller 3 including a decoder monitor unit 51, an input buffer monitor unit 52, a reception transmission channel monitor 53, a sending transmission channel monitor 63, an output buffer monitor unit 62 and a quantization step controller 74.

Abstract: To improve qualities of audio and picture signals by distributing adaptively the code quantities of audio codes and picture codes and by adopting variable rate audio coding. The audio/picture processing apparatus handles audio presence information, audio characteristics information, audio quality information, picture quality information, code quantity distribution information, and line capacity information. A code quantity control means decides the distribution of the audio and picture codes, an audio coding format, and a coding rate, whereby the audio signal and picture signal are coded by a picture encoder and an audio encoder. The outputs from the picture encoder and the audio encoder are multiplexed by a multiplexer in order to transmit a multiplexed bit stream onto the network.

Abstract: A 2-axis acceleration sensor has two detection axes (X- and Y-axes), and detects a dynamic acceleration (shock) and a static acceleration (a change in gravity or tilt). A sensor output extraction unit acquires detection signals corresponding to the static acceleration for respective detection axes by extracting frequency components lower than a frequency component associated with the dynamic acceleration. A CPU determines whether the disk drive is dropping, whether it has a tilt, and so forth, based on the acquired detection signals for respective detection axes, and causes a magnetic head to be retracted to the position of a ramp if such state is detected.

Abstract: A 2-axis acceleration sensor has two detection axes (X- and Y-axes), and detects a dynamic acceleration (shock) and a static acceleration (a change in gravity or tilt). A sensor output extraction unit acquires detection signals corresponding to the static acceleration for respective detection axes by extracting frequency components lower than a frequency component associated with the dynamic acceleration. A CPU determines whether the disk drive is dropping, whether it has a tilt, and so forth, based on the acquired detection signals for respective detection axes, and causes a magnetic head to be retracted to the position of a ramp if such state is detected.

Abstract: Disclosed is a picture encoding format converting apparatus, comprising: a picture decoder for decoding a picture signal from an input bitstream; a picture encoder for encoding the picture signal into an output bitstream; a main controller for controlling the amount of calculations executed by the picture encoder, on the basis of a state of the picture decoder.

Abstract: A picture encoding system conversion device and a code rate conversion device for realizing the conversion taking into account both time delay and picture quality using the information on the code volume of the encoding parameters, input and output buffers and an input bitstream. There are provided a decoder 1 including an input buffer 21, a VLD unit 22, an inverse quantizer 23, an IDCT unit 24, an adder 35, a frame memory 26 and a motion compensation prediction unit 27; an encoder 2 including an adder 31, a DCT unit 32, a quantizer 33, an inverse quantizer 34, an IDCT unit 35, an adder 36, a frame memory unit 37, a motion compensation prediction unit 38, a VLD unit 39 and an output buffer 40; and a transcoder controller 3 including a decoder monitor unit 51, an input buffer monitor unit 52, a reception transmission channel monitor 53, a sending transmission channel monitor 63, an output buffer monitor unit 62 and a quantization step controller 74.