Abstract: A first reproduced color under signal is delayed by one or two horizontal periods by a delay circuit, and this delayed second reproduced color under signal and the aforementioned first reproduced color under signal have their frequencies converted individually by first and second frequency converters into standard color signals. An oscillatory frequency signals of 2n of carriers for the aforementioned frequency conversions are divided to have the aforementioned carrier frequencies and to produce four carriers having phases of 0, 90, 180 and 270 degrees. These carriers are selectively fed to the first and second frequency converters by switches so that the two frequency-converted signals are subtracted or added in phase or in opposite phase to clear the noise (or crosstalk component), which is caused by the crosstalk between the tracks.

Abstract: A circuit for recording and reproducing a TBC reference signal for use in video recording/reproducing systems includes a circuit for adding to a video signal to be recorded a TBC reference signal in which the TBC reference signal has a period adaptively varying corresponding to a synchronizing variation of the video signal; and a circuit for extracting and reproducing a TBC reference signal from a video signal read-out from the recording medium in order to correct time-base errors in the video signal. The circuit corrects time-base errors of the video signal according to a TBC reference signal reproduced along with the video signal from the recording medium during reproduction.

Abstract: An image signal recording apparatus includes a first storage device arranged to receive image data and to temporarily store the image data inputted, and a second storage device which has a moving part arranged to record on a recording medium the image data temporarily stored at the first storage device. The apparatus is arranged such that, in moving the moving part of the second storage device after receipt of an instruction for starting to input the image data, the timing of starting the movement of the moving part of the second storage device is controlled according to the state of a power supply or a type of power supply which supplies electric power to portions of the apparatus. The apparatus thus can be simply arranged to be capable of continuously and stably recording image data by consuming only a small amount of electric energy.

Abstract: A track jump control circuit comprises: a head; a rotary motor which drives the head and is controlled in accordance with an input signal; a unit for detecting a speed of rotation corresponding to the rotation of the rotary motor; distance detection unit for producing a signal corresponding to a distance which the head should move with using no data read by the head when the head is moved to a desired position; speed setting unit for setting a speed of movement of the head based on the signal produced by the distance detection unit; and a unit for comparing a speed detected by the speed detection unit with a speed set by the speed setting unit to produce an output as the input signal to the rotary motor.

Abstract: An improved audio recording/reproducing apparatus reduces noises in the reproduced audio signal by employing a bypassing circuit which includes a transistor having a low internal resistance.

Abstract: A video signal recording and reproducing apparatus comprises a magnetic tape (4) into which video signals are recorded, A preemphasis circuit (35) modifies the video signals prior to the recording into the magnetic tape (4), so as to increase magnitude of high-frequency components with respect to magnitude of low-frequency components on time base. A record start or end ID signal is generated in response to a record start or end signal in an ID signal recording circuit (36) which memorizes this ID signal into a corresponding portion of the magnetic tape (4). A mute circuit (46) resets the preemphasis circuit (35) in response to the record start or end signal. There is further provided a deemphasis circuit (37) for modifying the video signals after reproducing from the magnetic tape (4) in a complementary manner with respect to the preemphasis circuit (35), so as to decrease magnitude of high-frequency components with respect to magnitude of low-frequency components on time base.

Abstract: A camera-integrated type video recorder apparatus having a camera part and a recorder part which records an image pickup signal outputted from the camera part comprises a grip which is provided for holding the apparatus in a shooting state and is arranged near to a cassette mounting part which is provided for mounting and demounting a tape cassette on and from the recorder part, and an operation part which is openably and closably arranged near to the cassette mounting part and includes a plurality of operation keys for operations on the apparatus. When the apparatus is held in the shooting state, the grip and the operation part jointly close the cassette mounting part. When the grip and the operation part are in an open state, the tape cassette is mountable and demountable while the operation part is held in a predetermined operating position. Further, while the apparatus is in the shooting state, the operation keys are kept in an inoperable position.

Abstract: A digital video signal recording apparatus records a video signal expressed by four digital components such that even numbered pixel is expressed by a first type luminance signal component and two color difference signal components, and odd numbered pixel is expressed by a second type luminance signal component. For the 525/60 NTSC system with 3-segment and 4-channel arrangement, one field video signal is stored in three segments. The recording apparatus has a standard channel order generator for generating a standard channel order of a recurring channel pattern. The four digital components are aligned based on the recurring channel pattern so that the first type luminance signal component and two color difference signal components for the even numbered pixel are stored in a same segment by the same channel. As a result, the samples for the same-position pixels are recorded by the same recording head, adjacent samples are recorded by different heads, and error concealment functions effectively.

Abstract: In a system for reading out an information signal stored in a memory and recording it on a recording medium, renewal of the address of the memory is performed in synchronism with the recording operation, thereby making it possible to record the information signal on the recording medium continuously despite intermittent performance of recording. The address of the memory is returned by a predetermined amount in synchronism with renewal of the address of the memory or the recording operation. Thereby it is also possible to assure good continuity of the recorded information signals. Further, the above-described processing is made easier by making the address of the memory controllable in units of track on the recording medium.

Abstract: An image signal processing apparatus for processing an image signal composed of a luminance signal and a chrominance signal is provided with a first-in first-out memory which is capable of storing the image signal for one field. The apparatus is arranged such that, in writing or reading the image signal into or from the first-in first-out memory, the image signal writing and reading actions on the first-in first-out memory are reset at intervals of a horizontal scanning period of the image signal. This arrangement enables the apparatus to carry out various signal processing actions by delaying the image signal without using any delay element exclusively for the process of delaying the image signal which is necessary for the various signal processing actions.

Abstract: A system for programming the automatic operation of a video recorder over an extended time period uses an associated television receiver as a display device for alphanumeric messages to the operator to provide a self-explanatory, interactive programming routine. The video recorder system includes a digital memory, a real time digital clock, and an alphanumeric character generator, all connected to a central digital controller. A keypad allows the operator to initiate a programming routine in which previously stored programming messages are called up from memory and generated on the TV receiver's display tube using the character generator. The operator's responses entered via the keypad are stored in the memory and are called up at future times to generate control signals for the video recorder. The video recorder system further includes a memory storing digital data representing a schedule of programming available for a future period.

Abstract: Method and apparatus for applying encoded data on the balance stripe of sound track, the data for providing information for editing an associated film without recording the data on the film. The present invention teaches an apparatus for applying code for synchronizing sound on a single strip of the sound track with an associated film. The apparatus includes a code box for generating the code, which relates the position of the film relative to the sound track. The code box is coupled to an editing flatbed for providing pulses related to the movement of the sound track. A sound module is coupled to the code box for applying the code to the balance stripe.

Abstract: The present invention relates to a video camera having a stroboscopic flash, and a method of photographing a subject with the video tape recorder. The video camera includes a strobe device for illuminating the subject with a flashing light, a movie photographing trigger serving as a movie photographing button, a still photographing trigger for initiating still photography, an image processing unit for energizing the movie photographing trigger so as to measure light quantity from the subject during a movie photography operation, and a control unit for determining based on information about the light quantity measured by the image processing unit whether or not strobe photography is required during a still photography operation. According to the above construction, the strobe photography can automatically and immediately be performed upon the still photography operation when the still photography is initiated in the course of the movie photography.

Abstract: A video signal reproducing apparatus for reproducing a video signal recorded on a magnetic recording medium includes a modulating circuit for receiving a color-difference line-sequential signal and modulating the color-difference line-sequential signal at intervals of one horizontal scanning period, an adding circuit for adding a luminance signal to the color-difference line-sequential signal modulated by the modulating circuit, a delay circuit for delaying a signal outputted from the adding circuit or the modulated color-difference line-sequential signal by one horizontal scanning line, and a subtracting circuit for subtracting the signal outputted from the adding circuit and not delayed by the delay circuit from a signal which has been delayed by the delay circuit by one horizontal scanning line. The video signal reproducing apparatus is arranged to provide line interpolation information for the luminance signal as well as simultaneous color-difference signals.

Abstract: A frequency-multiplexed video signal is generated in which a color-under signal and a second under signal are linearly combined with at least partially overlapping frequency spectra to form a composite under signal for an FM luma signal. The frequency-multiplexed video signal is suited for recording on magnetic tape using helical scanning methods and for being played back from the magnetic tape using helical scanning methods. The second under signal is generated in such way that line-comb filtering can be used during playback to separate color-under signal and second under signal each from the composite signal despite their frequency spectra being at least partially overlapping in the composite signal.

Abstract: A portable CD-ROM retrieval apparatus, is provided wherein a CD-ROM drive for loading a CD medium, a display for displaying characters and images, an input specifying section for specifying a desired input operation, an audio section for producing sounds, and a data storage for storing data from the CD-ROM drive and the like are connected together through a control section, these devices being housed in a single cabinet. In accordance with one feature, the apparatus can calculate and display statistical information which depends on frequency of data access to the CD medium.

Abstract: A system for playing a selected one of multiple subtitle tracks recorded in synchronized fashion with a motion picture on an optical disk. Individual subtitle tracks in numerous languages may be provided for the same motion picture, with or without multiple soundtracks. The user may select a soundtrack in his/her language if it is available. If not, subtitles can be displayed in a selected language.

Abstract: A television storage system for editing and special effects equipment in which live video input material is recorded and converted into two parallel streams of real time live video with the input video recorded as compressed segments independently accessible on multiple synchronous disk drives.

Abstract: A video signal recording apparatus for recording of a still-image signal on a recording medium can be set to an interval recording mode for recording a still-image signal at intervals of a predetermined time interval. First time data relative to a recording time according to the amount of information of the still-image signal for one picture is compared with second time data relative to the predetermined time interval. If the first time data is greater than the second time data, a notice to that effect is given for the purpose of preventing an operation error. In addition, a similar advantage can be achieved by displaying the first time data. Also, if the first time data is greater than the second time data, the apparatus is disabled from being set to the interval recording mode.

Abstract: A method of dubbing compressed digital video signals adopted for an apparatus for efficient coding and subsequent recording/playback of video signals. In the method of dubbing compressed digital video signals, on a playback unit side, after padding error data by an error processing circuit with respect to an error uncorrectable in error correction by an ECC circuit of playback, the digital video signal is provided with a parity for transmission by a parity generating circuit and is then transmitted to a recording unit side. On the other hand, on the recording unit side, after padding error data by an error processing circuit with respect to an error uncorrectable in error correction by an ECC circuit of transmission, the digital video signal is provided with a parity for recording by a parity generator and is then recorded in a recording medium.