Abstract: A CCD sensor 3 generates video signals in response to an incident light representing an image of an image. In accordance with a video signal supplied from a focusing region of the CCD sensor, a first control section including a focusing control unit 9 generates a focus control signal. In response to the focus control signal, a drive circuit 10 and a motor 1 control an imaging lens 2 so as to focus the lens 2 on the image. Further, in response to a motion vector signal outputted from a motion vector detecting unit 6, a second control section including a distance measurement region control unit 7 controls a position of the focusing region so that the focusing region tracks motion of the image of the object. In addition, a view-finder 11 displays the video signals supplied from the CCD image sensor 3 and a cursor representing the focusing region.

Abstract: In an upper and lower pincushion distortion correcting circuit, so-called "cloak distortion" and "vertical intermediate-pincushion distortion" are corrected. A variable voltage source is connected to one end of a secondary winding of a transformer magnetically coupled with a primary winding thereof series-connected to a vertical deflection coil. A capacitor is connected between the other end of the secondary winding and the ground, and a series circuit constructed of a coil and a switch is connected in parallel to this capacitor. The so-termed "cloak distortion" is corrected by varying a resonance frequency of a sawtooth-shaped voltage in the horizontal scanning period, while an ON-period of the switch is controlled. Also, the "vertical intermediate-pincushion distortion" is corrected by varying an S-value of the sawtooth-shaped voltage in the vertical scanning period, while the source voltage of the variable voltage source is changed.

Abstract: An automatically answerable telephone apparatus comprises a control unit having a rewritable memory for storing control data for automatically responding operation and operative to control a line signal processor and a recording and reproducing device, a writable non-volatile memory, a power source for supply a power supply voltage, a capacitor connected for holding the power supply voltage, and a power failure detector, wherein the control unit is operative, with the power supply voltage discharged by the capacitor to remove operating portion other than the control unit and the writable non-volatile memory from the power source and to transfer the control data for automatically responding operation from the rewritable memory to the writable non-volatile memory for preserving the control data when power failure occuring in the power source is detected by the power failure detector.

Abstract: A digital broadcast receiver comprising frequency specifying element for specifying a receive frequency (frequency block), content type specifying element for specifying a broadcast content type, and control element for controlling signal reception with a specified receive frequency and controlling such that a digital broadcast having a specified broadcast (program) content is identified among and selected from a plurality of digital broadcast signal according to a set of broadcast content type information. The control element, when a changed receive frequency is specified by the frequency specifying element, controls the signal reception with the new receive frequency and, if a broadcast content had been specified by the content type specifying element before the receive frequency was changed, controls such that a digital broadcast signal with the broadcast content specified by the content type specifying element is selected from a plurality of digital broadcast signals received at the new receive frequency.

Abstract: In a monitor apparatus for a television system, a dynamic range of a brightness level of an image quality is widened, and an image very similar to a picture of a movie film is represented on the monitor apparatus. With employment of the YM function for performing the half blanking process by controlling the gain of the video processor, for instance, when an image quality mode such as "theater" mode is selected, the video processor outputs such a control signal that the overall picture period becomes an H level (namely, YM function is turned ON). In the video processor into which such a control signal is inputted, the gain control is carried out. The video signal outputted from the video processor owns such a waveform that the half blanking process has been executed over the entire picture period. The brightness of the overall image can be lowered by this YM function.

Abstract: A portable telephone apparatus for communication with a base station through a radio telephone channel. A microprocessor controller controls operation of the apparatus in accordance with an operational program. A connector is used for connecting the apparatus to a fixedly wired telephone line through a modem. A digital signal processor processes voice signals. The operational program is partially stored in an Electrically Erasable Programmable Read Only Memory (EEPROM). A first Random Access Memory (RAM) temporarily stores control signals to be used for amending the operational program stored in the EEPROM. A second RAM stores a portion of the operational program which is used for controlling operation of the digital signal processor. A switch which is responsive to the controller, selectively connects the second RAM to either the controller or the digital signal processor.

Abstract: An 8-mm video tape recorder receives a main audio signal which is transmitted as a monaural or stereophonic audio signal, and an auxiliary audio signal (SAP) which is selectively transmitted with the main audio signal, and records the main audio signal as first and second audio signals. A SAP demodulator determines whether the auxiliary audio signal is transmitted or not. When the auxiliary audio signal is transmitted as determined by the SAP demodulator and recording of the auxiliary audio signal is indicated through a terminal by the user, selector switches are shifted to supply the auxiliary audio signal to a frequency demodulator which records the auxiliary audio signal as the first audio signal on an 8-mm magnetic video tape. The 8-mm video tape recorder can record video signals accompanied by audio signals at all times.

Abstract: A planar antennas has a square radiating conductor with a total of eight slits defined therein. Each of the slits extends from one side of the radiating conductor parallel to opposing sides flanking the one side. The slits are positioned such that they slits remain in the same pattern when the radiating conductor is turned 90.degree.. Any changes in the impedance as the offset length of a feeding point from the center of the planar antenna are relatively small, specifically range from 0 ohm to 400 ohm. The planar antenna is small in size, is easy to achieve impedance matching with a general feeding system having an impedance of 50 ohms, for example, and has wider frequency band. The planar antenna is also capable of generating circularly polarized electromagnetic waves.

Abstract: A wavelength converter having the light source formed of the semiconductor laser 1 and the nonlinear optical element 2, wherein, the oscillation light therefrom is incident to the nonlinear optical element 2 as an input fundamental wave, and the oscillation wavelength is changed by the very small variation current added to the injection current to the semiconductor laser so that the input fundamental wavelength to the nonlinear optical element 2 is changed and that the oscillation wavelength of the semiconductor laser is pulled in the input fundamental wavelength at which the wavelength conversion efficiency is the maximum.

Abstract: A semiconductor switching circuit for operation at low battery voltages as in, for example, battery powered telephone devices. The semiconductor switching circuit includes first and second field effect transistors. Three power supplies are provided. The first power supply outputs a voltage V.sub.o. The second power supply outputs a voltage which is no lower than the sum of V.sub.o and the built in voltage of the field effect transistors. The third power outputs a voltage which is not higher than the sum of V.sub.o and the pinchoff voltage of the field effect transistors. The source of the first field effect transistor serves as the circuits input while its drain serves as the circuit's output. This output is connected to the drain of the second transistor. The first power supply provides bias to the first and second field effect transistors. This arrangement provides low input loss and high isolation.

Abstract: A communication system using a bi-directional bus, comprises a plurality of devices (e.g., TV Image Receiver, Video Tape Recorder, etc. ) respectively including sub-devices (e.g., Monitor Image Receiver, TV tuner, Video Deck, etc.) adapted for executing the operation for a received control command.

Abstract: This invention relates to a method for recording a positioning signal on a disk having a projection pattern. The method includes rotating a magnetic disk having a magnetic layer on a non-magnetic substrate having a projection pattern thereon, flowing the first DC current to a magnetic head, moving the magnetic head in the direction of the diameter over the magnetic disk whereby to magnetize the whole magnetic layer of the magnetic disk in the first direction, then rotating the magnetic disk, flowing the second DC current to the magnetic head, moving the magnetic head in the direction of the diameter over the magnetic disk whereby to magnetize only the magnetic layer of the projection portion of the magnetic disk in the second direction opposite to the first direction so as to record a positioning signal on the magnetic disk.

Abstract: A compressed video signal and a compressed audio signal decoding apparatus which including a local access unit counter intended for digital AV applications where access unit headers (e.g. frame headers, audio unit headers or other kind of data unit headers) may be lost or generated by storage media or transmission errors. In order to prevent a resulting AV sync error a value called "access unit count" is included in each elementary stream. With this value each decoder can detect lost or false access unit headers, and correct the AV synchronization. In order to support editing, an extra bit can be added to indicate discontinuity in the access unit count.

Abstract: A phase-locked loop circuit includes a phase comparator for comparing a phase of an input signal with a reference input, connecting circuits having circuit elements arranged in signal paths to be selectively operative, output circuit for supplying an output of the phase comparing means to the connecting circuits, and control circuit located between the output circuit and phase comparator for making a signal path operative by controlling the output circuit.

Abstract: An add-on module for a contact printer used to manufacture a motion picture. The module enables the printing of a digital optical soundtrack on motion picture film from a sound negative using a standard contact printing process. The module includes spaced apart guide rollers and a main roller. Unexposed film is placed in contact between the main roller and the sound negative. The module further includes a fiber optic light source positioned adjacent to the sound negative for exposing the film and forming the digital soundtrack. The digital soundtrack is formed on a portion of the positive print which includes an area between each of the sprocket holes. In addition, the digital soundtrack extends from each sprocket hole to the edge of the positive print on both sides of the print.

Abstract: In an analog signal comparator circuit, first and second inversion output currents to the first and second reference values of input analog signals, a plurality of the first and second dividually inversion outputs divided the first and second non-inversion output currents, and the first and second dividually non inversion output currents are combined respectively and added, and the comparison output corresponding to the virtual reference value for dividing the first reference value, and the first reference value and the second reference value equally are outputted. Thus, the number of comparators can be decreased comparing with the necessary numbers of reference values, and by decreasing the number of elements the input capacities can be decreased and differential linearity errors can be reduced.

Abstract: A polarization separator for separating orthogonal polarization waves into a horizontal polarization wave component and a vertical polarization wave component is minimized in size. A metal pole in the form of a thin metal bar is disposed in a circular waveguide of a waveguide member into which the orthogonal polarization waves are introduced, and reflects the horizontal polarization wave component so that it is outputted through an output terminal formed in a circumferential wall of the waveguide member. Meanwhile, the vertical polarization wave component propagates in a substantially rectangular waveguide provided rearwardly of the metal pole and is outputted from another output terminal. Since the rectangular waveguide is formed in a cutoff structure for the horizontal polarization wave component, the reflection means can be formed from the metal pole in the form of a thin bar, and consequently, the polarization separator can be minimized.

Abstract: A sound collecting system and a sound reproducing apparatus by means of which an actual audio image can be reproduced. The sound collecting system includes a plurality of microphones for producing sound signals and a plurality of position detecting apparatus for detecting locations of the microphones and/or positions of sound sources to produce position signals. The sound signals and the position signals are multiplexed by a plurality of multiplexers, and the multiplexed signals are stored into respective audio channels or different channels by a signal recording apparatus. The multiplexing may be performed by a frequency multiplexing method, a time division multiplexing method or the like. Since also position information is stored into corresponding audio channels together with acoustic sound signals, at the reproducing stage, reproduction is possible taking the positions into consideration and an actual audio image can be produced.

Abstract: A variable control fader with provisions for outputting a fader start signal upon movement of the fader from a position corresponding to the faders maximum attainable resistance value. This fader start signal can be utilized to initiate the activation or deactivation of the operation, or function, of other devices such as, for example, tape recorders, cart machines, or outboard signal processing equipment.

Abstract: A vocal sound can be erased by a simple arrangement. An audio reproducing apparatus in which a sum signal and a difference signal of left and right signals of a stereophonic signal are supplied thereto, a left signal and a right signal are obtained from the sum signal and the difference signal and the left signal and the right signal are respectively supplied to a left signal output terminal and a right signal output terminal includes switches (SW.sub.1 to SW.sub.4) for supplying the difference signal to the left and right signal output terminals (T.sub.L, T.sub.R) by switching the left and right signals.