Abstract: An SDDI signal in accordance with an AV signal is selectively recorded in an MO disc 6 of a portable AV editing apparatus 1 from a hybrid recorder 20 provided with an on-line editing function. The user carries the portable AV editing apparatus 1 around separate from the hybrid recorder 20 and uses the SDDI signal recorded in the MO disc 6 to perform off-line editing and prepare an EDL (edit decision list). This EDL is transmitted from the field to the station. The EDL is used for on-line editing at the station.

Abstract: It is made possible to record, on a recording medium on which original image data before compression is recorded, data resulting from a first coding processing performed when coding the data by a variable rate compression and coding system and to code quickly in real time when performing a second coding processing from that recording medium. Video data is reproduced by a VTR 300 from a master video tape 10 on which source video data is recorded and the first coding processing is carried out at a compressing and coding apparatus 100. The bit rate, allocation data, etc. obtained by this coding processing are stored in a predetermined region of the master video tape 10 via the VTR 300. When the master video tape 10 is used, the second coding processing can be quickly carried out without reading the bit rate data etc. from another apparatus.

Abstract: A system for processing digital image signals to reduce the effect of quantizing noise in the images represented by the signals. An n-bit image signal is converted into an m-bit image signal (m>n). The high frequency content of the m-bit signal is estimated and then first and second multipliers are derived on the basis of the high frequency content. The first multiplier is applied to the m-bit image signal, the second multiplier is applied to a filtered version of the m-bit image signal, and the two resulting signals are combined to generate a reduced quantizing noise m-bit image signal.

Abstract: Images of reproduced video data of plural channels are displayed on main small screens arrayed in a central horizontal row on an index picture. Time-serially anterior images of reproduced video data are displayed on two upper small screens above the main small screens, while time-serially posterior images of reproduced video data are displayed on two lower small screens below the main small screens. In a forward reproduction mode, the images displayed on the respective small screens are altered, with a lapse of time, to the lower adjacent images while being cross faded. And in a reverse reproduction mode, the images are altered, with a lapse of time, to the upper adjacent images while being cross faded. A normal reproducing operation is started from a desired image when the main small screen, where the desired image is being displayed, is selected by means of a cursor. Thus, any image of video data can be indexed efficiently.

Abstract: An audio signal processor for processing 1-bit signals, comprises an input 40 for receiving a 1-bit signal, means 41, 42 for applying a predetermined filter characteristic to the 1-bit signal whereby the signal is also converted to an n-bit signal where n is greater than one, means 43 for determining the absolute value of the n-bit signal, means 46, 51 for producing a dynamics control signal dependent on the said absolute value, means 48 for applying the dynamics control signal to the 1-bit input signal, and means 49 for requantizing the dynamics controlled signal as a 1-bit signal and shaping the noise in the requantized 1-bit signal. Circuits for producing LOG base 2 and the corresponding anti-log are also disclosed.

Abstract: An optical disk apparatus providing for effective use of a disk's information recording surface and allowing for high density access. The apparatus is operable on disks of the land/groove type, wherein the width of lands and grooves is approximately equal, and the disks have a track pitch of 0.64 &mgr;m or less and a light transmission layer between 10 &mgr;m and 177 &mgr;m thick. The apparatus features a working distance which is no greater than 560 &mgr;m and a numerical aperture which is at least 0.78.

Abstract: Video data compression apparatus in which successive groups of two or more images are encoded subject to a predetermined limit on the quantity of output encoded data to be generated for each group of images, comprises a trial encoder for encoding at least a subset of images of a current group of images to generate trial-encoded data for each trial-encoded image; a data quantity allocator, responsive to the quantities of trial-encoded data generated by the trial encoder, for allocating respective quantities of output encoded data for each image in the group of images; and a final encoder for encoding each image of the group of images in accordance with the quantities of output encoded data allocated to that image by the data quantity allocator.

Abstract: A digital tape recorder comprises means for recording video material onto video sections of a digital tape; and means for recording digital cataloguing data corresponding to the video material onto cataloguing data sections longitudinally interspersed between video sections on the digital tape.

Abstract: A system and method for performing high-speed reproduction of compressed video/audio data. High-speed reproduction is controlled such that only a portion of the data contained in each of the smallest possible data reproduction units is reproduced, and such that only the portion of the audio data which is contained in each of the smallest possible data reproduction units is reproduced.

Abstract: Digital video data encoder and decoder operate to enable the low and high speed reproduction of variable rate encoded digital video data by reproducing and decoding intraframe encoded frames that are identified by previously reproduced intraframe encoded frames. In the encoder, digital video data is variable rate encoded, for example, intraframe and interframe encoded, entry points (i.e., beginning positions) of selected encoded video data are identified and which represent video frames that occur at predetermined intervals of time (e.g., 1, 2 and 4 seconds) in the video picture. Entry point data that identify these positions are generated and added to the encoded video data before the video data is recorded on a record medium. When the encoded data is reproduced from the record medium, the entry point data is extracted therefrom and stored, and a successive intraframe encoded frame identified by the extracted entry point data is reproduced and decoded.

Abstract: Audio processing apparatus comprises an audio processor operable to apply audio processing operations to two or more input audio channels; user-operable adjustment controls for adjusting processing parameters associated with the audio processing operations; a display screen for displaying icons representing audio processing operations for each of the input audio channels, the display color of at least a part of an icon being defined by a logical color index; a data array mapping a set of logical color indices to colors for display on the display screen; and a detector for detecting user operation of the adjustment controls associated with an input audio channel and, in response to such a detection, for changing the display color of at least the part of the icon associated with that channel by changing the display color defined in the data array for the corresponding logical color index.

Abstract: A signal processing apparatus, a recording medium, and a signal processing method that can be applied to, for example, an optical disk apparatus for recording audio signals in an optical disk, the optical disk, and an optical disk apparatus for reproducing data from the optical disk inhibit deterioration in quality of input signals and enable superimposition of copyright data or the like in such a manner that it is difficult to analyze. An input signal is subjected to orthogonal transform processing to generate coefficient data. Input data is embedded in the coefficient data, then the result is subjected to inverse orthogonal transform processing.

Abstract: An information recording apparatus for recording data into a recording medium taking as recording unit a sector corresponding to a predetermined amount of information signal, comprises a file management unit (5) to classify an information signal for recording into the recording medium (101) into a number, two or more, of groups depending upon the importance of the information signal, and a write/read unit (6) to record the information signal into the recording medium (101) while dealing with a defective sector, if any, in the recording medium (101) in a manner designated for the group to which the information signal has been classified to belong at the above classifying step, and record a highly important information signal, when a defective sector is found by checking up the information signal recorded in the recording medium (101), into another sector.

Abstract: An apparatus of forming an evaluation signal used in adjusting focus bias and adjusting skew of a disk drive in which phase error information between a phase of a read data signal and a phase of a clock signal formed in synchronism with the read data signal, is detected, the phase error signal is converted into an analog signal and is outputted as an evaluation signal having a signal level in accordance with the phase error amount and the evaluation signal is inputted after A/D conversion to a portion for carrying out signal quality evaluation by using the evaluation signal whereby pertinent signal evaluation can be carried out by a simple constitution.

Abstract: During recording, a multilingual indication is generated when at least two of the audio channels of a digital audio signal are associated with a common program, and the multilingual indication is combined with the digital audio signal. During reproduction, a display is activated when a multilingual indication indicates that at least two of the audio channels included in a digital audio signal are associated with a common program.

Abstract: A playback apparatus allowing one of a variety of playback modes to be selected when playing back main data and/or sub-data from a disc-shaped recording medium. The playback apparatus is capable of suppressing the mechanical noise generated during access to a sub data area of the disc-shaped recording medium when the sub data area is separate from a main data area. The apparatus suppresses mechanical noise by prohibiting synchronous playback of the sub data when the user desires high quality audio playback.

Abstract: A solid state image pickup device of an interline system. The device includes a plurality of photosensors, which are arranged in a matrix form, which receive light transmitted through a plurality of color filters, and which are repeated in the vertical direction at a period of “N” pixels. A vertical transfer unit is provided for transferring charges read out from the plurality of photosensors. A horizontal transfer unit is coupled to the vertical transfer unit, and is used to horizontally transfer the charges transferred by the vertical transfer unit. Charges are passed to the vertical transfer unit by a first signal supplying unit and a second signal supplying unit. At least one of the signal supplying units is made up of “m” first photosensor groups arranged in the vertical direction and second photosensor groups numbering “a” times as large as the pixel period “N” and which are also arranged in the vertical direction.

Abstract: A portable communication terminal for use in a communication system including the terminal and a terminal server, and an implementation of such a communication system. The communication terminal has a telephone communication means operable to accesses a server and/or a data base connected to a portable telephone system network so as to receive multimedia information from the server and/or data base, and a human-machine interface means operable to receive multimedia information supplied from the telephone communication means.

Abstract: An apparatus of forming an evaluation signal used in adjusting focus bias and adjusting skew of a disk drive in which phase error information between a phase of a read data signal and a phase of a clock signal formed in synchronism with the read data signal, is detected, the phase error signal is converted into an analog signal and is outputted as an evaluation signal having a signal level in accordance with the phase error amount and the evaluation signal is inputted after A/D conversion to a portion for carrying out signal quality evaluation by using the evaluation signal whereby pertinent signal evaluation can be carried out by a simple constitution.

Abstract: An object of the present invention is to provide a picture signal recording and reproducing apparatus by which adjacent normal picture elements can be reproduced even when there is a hard disc in trouble. The picture signal recording and reproducing apparatus of the present invention records adjacent picture element data in different data hard discs (72) by a picture element insertion processing block (10), when writing the picture signal data in 7 pieces of data hard discs (72), and it returns the picture element data of the picture signal data to the adjacent picture element data by a picture element deletion processing block (12), when reading out the picture signal data. Therefore, the probability that adjacent picture elements are read out in a normal state, is high even when either of the data hard discs (72) is in trouble, so that the quality of the reproduced picture can be improved.