Abstract: High speed image search data is obtained from compression-coded moving image data for each frame/field). The obtained data is divided into ranges based on positions on a picture, and the range is divided based on the amount of codes. The divided data is multiplexed for each position in the picture as data is recorded at different positions on a track and a specific number of different frames are recorded alternately in each track. The multiplexed high speed image search data is recorded at specific positions on a recording medium. The picture ranges of frames are synthesized based on high speed image search data read from the recording medium, to construct a search image in units of frame. Further, a special reproduction transfer rate is set based on a difference between the moving image data transfer rate and the maximum allowable recording transfer rate. Based on the set transfer rate, the special reproduction image data corresponding to the moving image data can be obtained.

Abstract: In video motion vector generation and compensation, it is common for the chrominance sampling rate to be half the luminance sampling rate. When only a luminance motion vector is used, there can be rounding problems if either the horizontal or vertical motion vector (or both) is odd valued and the luminance motion vector is divided by two to generate a chrominance motion vector. For this reason, the luminance motion vector is provided with an additional bit for either or both axes if odd valued, and a rounding decision, if necessary, is made on the basis of the digital value of the additional bit.

Abstract: Display is made according to the user's request by using the time information recorded on the disk. A disk contains a management area in which management data is recorded and a data area in which programs are recorded. Recorded in the management area are the absolute time information on the starts of the programs and the in-program relative time information on the starts of data units constituting each program. In the absolute time display mode, the absolute time information for display is obtained from the absolute time information on the program being reproduced and the relative time information on the data unit of the program being reproduced. In the relative time display mode, the absolute time information of the program being reproduced is set at 0, and the absolute time information for display is obtained from the relative time information on the data unit of the program being reproduced.

Abstract: A varying speed reproducing method of digital video signals is disclosed. With this method, digital video signals are reproduced in a phase locked state from a magnetic tape by applying a phase servo to a tape running system using the difference between the number of a pre-set one of sync blocks reproduced by each tracing by a rotary magnetic head and the number of a target sync block as a phase error. Thus the pre-set sync block may be positively reproduced by each tracing by the rotary magentic head during varying speed reproduction of the magentic tape having the digital video signals recorded on the inclined tracks thereof. A reproducing apparatus is also disclosed. With the reproducing apparatus, digital video signals may be reproduced from the magnetic tape in a phase locked state by feeding back the phase error signal from the phase error signal generating means to the phase loop of the tape running system designed for running the magnetic tape during varying speed reproduction.

Abstract: A width of a illumination light being transmitted through a film is restricted within a distance between frames of the film. The film is transported to a position where only an area between frames is illuminated after the image of one frame is picked up, and a film transport is stopped. Then, the light is diminished or turned off when any operation is not instructed within a first time. Next, the film is transported in such a manner that a middle part of the frame is positioned below or above a photo detector when any operation is not instructed within a second time after the first time has passed, and the film transport is stopped. Then, a magnetic head is pressed against the film and the film is released from being held between the capstan and the pinch roller.

Abstract: A method, apparatus, and storage medium for temporal indexing of at least two audio, video, and data (AVD) streams, each AVD stream comprising a plurality of AVD stream chunks. A stream information data stream (SIDS) having a plurality of SIDS chunks is stored, each SIDS chunk corresponding to a corresponding AVD stream chunk for each of the at least two AVD streams. A temporal index stream (TIS) having a plurality of TIS chunks is also stored, each TIS chunk corresponding to a corresponding SIDS chunk. Each TIS chunk comprises a time stamp for indicating the current time and an offset for locating the corresponding SIDS chunk. Each SIDS chunk comprises an SIDS chunk entry for each of the at least two AVD streams that is currently active, each SIDS chunk entry comprising an offset for locating the corresponding AVD stream chunk of each active AVD stream of the at least two AVD streams.

Abstract: A desired frame image can be searched for and reproduced at high speeds. The same holds true for frame return reproduction. A data unit containing the video information compressed by encoding is stored in a data unit memory and decoded at a decoding unit. When the target frame is decoded, the decode output is stored in an image memory and supplied as a still reproduction image via a switch. The image memory can also be used as a memory for storing the decode output of the frame located at the mid-point between the start frame of the data unit and the frame currently being reproduced.

Abstract: A system records a single program from a multi-program transport stream that is encoded according to the MPEG-2 standard. The system demultiplexes transport packets from the multi-program transport stream and records the demultiplexed packets on a digital video cassette recorder (DVCR). The system includes circuitry in the encoder which emulates a buffer in the digital recorder that is used to hold the packets to convert the bursty packet data into constant rate data for recording. This emulated buffer controls the overall rate at which packets of the selected program are inserted into the multi-program transport stream by the encoder. As each packet is recorded, a time stamp value, representing when the packet was demultiplexed and a clock count value, representing a number of pulses of a high-frequency system clock signal that occurred during a predetermined number of bytes of the demultiplexed packet are recorded with the demultiplexed packet.

Abstract: An automatically editing method of programmed recordings is disclosed in which, when a plurality of different programs are reserved to be recorded, the same program can be continuously recorded together. The method according to the present invention, is carried out in such a manner that the total recording time and the total residue amount of the tape are calculated under the recording mode upon insertion of a tape, sectors are allocated by calculating the time per sector in accordance with the reserved programs, and the recording is carried out upon arriving at the reserved time and an index mark is put on the initial portion. After the recording, another index is put on the end portion of the recording and the system is put to a standby state until 5 minutes before the reserved time, and the next program sector is discriminated.

Abstract: A circuit for detecting an NTSC signal or a PAL signal in a laser disk player system. In the laser disk player system, the circuit includes an FM video signal processing part for shaping a waveform of the FM video signal picked-up from the optical pick-up part and for outputting the waveform shaped signal; a BPF (Band Pass Filter) and integrator for filtering and integrating the FM video signal shaped in the waveform from the FM video signal processing part, and for outputting an integral value in the form of an electrical signal; and a comparator for comparing the integral value outputted from the BPF and integrator with a determined reference voltage, and for outputting an NTSC or PAL detecting signal. Thereby, the NTSC or PAL signal can be detected quickly.

Abstract: Methods and apparatus for processing digital video data to reduce the amount of video data required to represent a video frame by representing a frame or pair of field pictures into a single field of a pair of field picture are described. To prevent the second field of the field picture from being displayed a DSM byte associated with the field picture is set so that only the field representing the video frame is displayed. In accordance with the present invention, a field, e.g., a transparent predictively coded field is used as the field picture which is not displayed. In this manner, very little data is required to represent the field picture that is not displayed. When the received frames are represented as pairs of field pictures a single field of the pair of field pictures is selected to represent the video frame with the other field picture being replaced with a field which requires very little data.

Abstract: An apparatus for use in a digital recording/reproducing system includes a first comparator for receiving a reproduced analog signal, comparing the voltage level thereof with a first reference voltage of a predetermined level, and outputting a first comparison result; a switch for switching on and off a connection with the reproduced analog signal in accordance with the first comparison result; a reference voltage adjuster for charging or discharging a charge element in accordance with the on/off state of the switch in the switch, and adjusting a second reference voltage of a predetermined level for data detection; a second comparator for receiving a reproduced analog signal, comparing the voltage level thereof with the second reference voltage adjusted in the reference voltage adjuster, and outputting a second comparison result; and a restorer for receiving the second comparison result, synchronizing the received result with a clock signal, and restoring the synchronized signal into a digital signal.

Abstract: A video signal from a tuner or an input terminal is provided to a second color system circuit and a first color system circuit. The video signal provided to the second color system circuit is recorded in a video recording and reproducing apparatus after the color system is set based on a control signal from a second color system control data output circuit. The color system information discriminated in the second automatic color system discriminating circuit controls the second color system control data output circuit. The video signal input to the first color system circuit is processed based on a control signal from a first color system control data output circuit. The color system information discriminated in the first automatic color system discriminating circuit controls the first color system control data output circuit.

Abstract: Time-based compressed data representing a program is supplied from a local conditional access circuit to two recording signal processing circuits which supply the data to be recorded simultaneously in time-compressed form by a digital VTR and an HDD (hard disc drive). The HDD need only store enough data to allow the digital VTR to record the entire program and to synchronize the output of the VTR with the output of the HDD. Once the program has been recorded on the VTR, it is reproduced therefrom concurrently with the portion of the program reproduced by the HDD and, once synchronization therebetween is reached, the VTR-reproduced data replaces the HDD-reproduced data. The reproduced data is supplied to an MPEG decoder circuit to be output as a reconstructed program for immediate display.

Abstract: An editing device for sequentially editing desired scenes or cuts. The editing device includes a CPU 11 which, when triggered by actuation of an edit button switch 12, issues a rewind playback command signal to a video camera 1 for a pre-set time, while issuing a pause canceling command signal to a VTR 2. After lapse of a pre-set time since the issuance of the pause canceling command signal, as set by a rotary switch 13, the CPU 11 outputs a pause setting command signal to the VTR 2. An infrared LED 14 converts the command signals from the CPU 11 and outputs the converted signals. The editing may be achieved by a simple operation of pressing the edit button switch 12 for facilitating the operation as compared to that with the conventional device.

Abstract: A method and system for use in a computer controlled video surveillance system are disclosed for storing and retrieving data relating to information recorded on a video tape, thereby locating visual information recorded on a video tape. The system comprises means for recording visual information on a plurality of segments of a video tape, each of the segments being defined by a time at which its recording begins and a time at which its recording ends. Means are provided for recording a tape identification code on the plurality of segments of the video tape. A tape counter generates a tape count such that for each segment, a corresponding initial tape count is generated at the time when recording of that segment begins. The invention further comprises a database. Stored in the database is a log corresponding to the video tape. The log comprises a record relating to each segment. Each record contains searchable fields.