Abstract: The plasma display panel includes a pair of glass substrates forming therein display cells. One substrate has address electrodes and the other has sustain electrodes including X-electrodes and Y-electrodes. X-electrodes are connected to terminals of sustain pulse generating circuits provided on a printed circuit board, via intermediate circuit boards. The printed circuit board and the intermediate circuit boards are connected to each other by connectors having a first set of terminals connected to the first sustain pulse generating circuit and a second set of terminals connected to the second sustain pulse generating circuit. Terminals of first and second sets are arranged in a row alternately one by one, or group by group.

Abstract: The SRAM memory cell comprises two inverters connected in complement with each other. Each inverter comprises one NMOS transistor and one PMOS transistor. Gate of the NMOS transistor in one inverter is connected to the drain of the NMOS transistor in the other inverter and this forms a first node. Drain of the NMOS transistor in one inverter is connected to the gate of the NMOS transistor in the other inverter and this forms a second node. Drain of an another PMOS transistor and gate of still another PMOS transistor are connected to the first node. Drain of the still another PMOS transistor and the gate of the another PMOS transistor are connected to the second node. The gate capacity and drain capacity of these PMOS transistors is appended to the two nodes.

Abstract: A recording/reproducing apparatus includes a recorder which records plural types of picture signals and picture information representing types of picture signals on recording tracks of a recording medium; a setting circuit which sets a type of picture signal to be reproduced from the plural types of picture signals; a search reproducer which scans transversely across the recording tracks and reproduces the picture signal and the picture information of the type set by the setting circuit from the recording tracks; a tracking controller which controls the search reproducer so that the picture information of the type set by the setting circuit can be normally detected during search reproduction; and a memory which stores the picture signal reproduced by the search reproducer during plural scans and forms a search reproduction picture based on the picture information reproduced by the search reproducer.

Abstract: A time lapse magnetic recording/reproduction apparatus for recording and reproducing picture signals while intermittently thinning them out in a frame unit is used for monitoring and burglar-proofing in plants, shops, banks, etc. Recording picture information is generated and added to one continuous picture signal obtained by sequentially switching the output of each video camera, and is then recorded. A speed multiple k for a normal tape travelling speed is optimally set by servo circuit on the basis of the recording picture information (the total number m of channels) detected from the reproduction picture signals reconstructed by double-azimuth four heads at the time of search reproduction, and a search reproduction picture throughout the full screen of a monitor television is obtained in full recording channels.

Abstract: In an address electrode drive circuit of a plasma display panel, clamping diodes which yield a small forward voltage drop and have a fast switching speed are connected between the output terminal of the drive circuit and the power source and between the output terminal of the drive circuit and the ground. A backward current and voltage dashing from the load to the output transistors of the drive circuit are initially bypassed and absorbed with the clamping diodes and subsequently bypassed and absorbed with parasitic diodes of the output transistors, and the drive circuit is protected against the incoming surge current and voltage.

Abstract: A time lapse magnetic recording/reproduction apparatus for recording and reproducing picture signals while intermittently thinning them out in a frame unit is used for monitoring and burglar-proofing in plants, shops, banks, etc. Recording picture information is generated and added to one continuous picture signal obtained by sequentially switching the output of each video camera, and is then recorded. A speed multiple k for a normal tape travelling speed is optimally set by servo circuit on the basis of the recording picture information (the total number m of channels) detected from the reproduction picture signals reconstructed by double-azimuth four heads at the time of search reproduction, and a search reproduction picture throughout the full screen of a monitor television is obtained in full recording channels.

Abstract: A semicustom semiconductor IC device is structured by connecting together various types of initially prepared macro cells in a given combination in accordance with a circuit configuration, and requisite characteristics, requested by a user. A plurality of signal terminals are provided on some sides of at least one of the macro cells to enable a signal corresponding to the same group of signal terminals to be input or output. Of those signal terminals to be connected, associated signal terminals of the shortest connection distance are selected so that they are connected together by a corresponding shortest connection wire.

Abstract: A semicustom semiconductor IC device is structured by connecting together various types of initially prepared macro cells in a given combination in accordance with a circuit configuration, and requisite characteristics, requested by a user. A plurality of signal terminals are provided on some sides of at least one of the macro cells to enable a signal corresponding to the same group of signal terminals to be input or output. Of those signal terminals to be connected, associated signal terminals of the shortest connection distance are selected so that they are connected together by a corresponding shortest connection wire.

Abstract: The present invention provides a magnetic recording and reproducing unit of a helical scan type having a slow speed tape running mode in which the speed of running a magnetic tape is slower than that of a standard running mode. The magnetic recording and reproducing unit of the present invention has a pair of azimuth heads of mutually different azimuthal angles which are mutually adjacently disposed on the outer periphery of a rotating cylinder and another pair of azimuth heads of mutually different azimuthal angles which are mutually adjacently disposed at positions symmetrical with the first pair of azimuth heads with respect to a rotating center of the rotating cylinder. Each pair of the two pairs of azimuth heads alternately traces tracks recorded with image signals on a magnetic tape to reproduce the recorded image signals.

Abstract: During the playback operation for freezing and storing a specific frame of a picture in a memory and thereafter printing the frame, the recording medium is turned reversely for a prescribed amount according to an instruction from a printer in response to the entry of the freeze command in order to accurately search the frame at the entry of the freeze, and thereafter the recording medium is played back in normal mode. The amounts of reverse turn and the successive forward turn in normal playback are counted and compared, and when the difference has become a prescribed value, a freeze signal is produced and the frame of the picture selected by the freeze command is stored in the memory and printed when required. This control method for use in a video print system is designed so that the recording medium is turned reversely for a prescribed amount according to an instruction from the printer and then stopped until the next command is entered.

Abstract: An automatic equalization apparatus useful for supplying an output signal of a transversal filter simultaneously to two juxtaposed comparators, one of the two comparators performing signal identification, the other of the two comparators detecting an equalization error with the reference level changed, and extracting data from resultant two kinds of data trains by taking at least (N-1)/2+1 bits as the unit, N being the number of taps of the transversal filter, performing correlation computation, and setting tap coefficients of the transversal filter on the basis of the resultant accumulated value.

Abstract: The present invention relates to a magnetic recording and reproducing device wherein reproduction monitoring can be made directly after recording, and more particularly to a construction of a rotary drum for the same. The magnetic recording and reproducing device includes a single recording channel for n recording magnetic heads, and n reproducing channels for n reproducing magnetic heads. The recording channel is provided either on an innermost circumference side or on an outermost circumference side of a rotary transformer. Since the device has such a reduced number of recording channels, the distance between adjacent channels can be increased and the transmission loss of a reproduction signal can be reduced.

Abstract: A magnetic video recording/reproducing apparatus of high resolution, which excludes a phase difference introduced to a signal due to difference in characteristics between a low frequency conversion system and a high frequency conversion system by inserting an additonal signal to both systems. The additional signal is recorded together with the video signal and a phase difference is detected. The detected phase difference is utilized for regulating the phase difference in the respective frequency systems.

Abstract: An integrated filter circuit including at least integrated resistances and integrated capacitances, said integrated filter circuit comprising a plurality of filter circuits connected in parallel and in which at least either resistance values or capacitance values are different, a switch for switching said parallel filter circuits, and means for controlling said switch to select one of said parallel filter circuits.

Abstract: A recording circuit for a video tape recorder which records superposedly a frequency-modulated audio signal with a frequency-modulated luminance signal and a carrier color signal converted to a low frequency band records a carrier wave signal which is frequency-modulated by the luminance signal at a substantially constant recording current within the frequency range corresponding to a range from the sync signal leading edge to the white peak. In an ordinary recording circuit, the extent of erasure of the recorded audio signal varies with the content of the frequency-modulated luminance signal when the luminance signal is recorded on the recording track of the frequency-modulated audio signal, because recording is made by increasing a recording current for a signal having an instantaneous frequency which is low.

Abstract: A VTR is furnished with a phase-locked loop whose reference input is a color signal subcarrier. The phase-locked loop fixes two sound FM carrier frequencies in constant relationships with the frequency of the color signal subcarrier, thereby to stabilize the carrier frequencies. The two sound FM carrier frequencies are respectively selected to be integral times of f.sub.H /2 (where f.sub.H denotes the frequency of a horizontal synchronizing signal). The frequencies of the beats between both the sound carrier are fixed to integral times of f.sub.H /2, with the result that the degradation of a reproduced picture attributed to the beats is prevented.

Abstract: A filter integrated circuit having a reference level generator circuit for attenuating its input signal and generating a reference level signal, a pseudofilter circuit including resistors and a variable capacitor as filter elements, and an error amplifier unit for comparing the level of the output signal of the reference level generator circuit with the level of the output signal of the pseudofilter circuit and for generating an automatic adjustment control signal in accordance with the level difference between the output signals. The automatic adjustment control signal is supplied to the pseudofilter circuit to change the capacitance value of the variable capacitor in the pseudofilter circuit so that the output signal level of the pseudofilter circuit may become equal to the level of the reference signal. The automatic adjustment control signal is also supplied to at least one filter circuit to change the capacitance of a variable capacitor included therein.

Abstract: An output section of an electronic circuitry having differentially connected transistors is connected to the emitter of a first transistor having an inverted conductivity type relative to that of differentially connected transistors and to the collector of a second transistor in combination with the first transistor to constitute an inverted Darlington amplifier. The output current is derived from the emitter of the second transistor, so that the electronic circuitry can be operated under the application of a low supply voltage and suited for an integration circuit.

Abstract: A magnetic recording and reproduction system of a helical scanning type provided with audio heads which rotate together with the rotary video heads so that the frequency-modulated audio signal is recorded by the audio heads on the video track on which the video signal will also be recorded. The audio signal is recorded first on the video track, and then the video signal is recorded over the record of the audio signal, whereby the audio signal has an expanded frequency band thereby to provide an improved sound quality.

Abstract: In a video tape recorder of the helical scan type, a pair of rotary magnetic heads for the audio signal are provided in addition to the rotary video heads so that the audio signal is recorded on the same slant track as of the video signal on a multiplex basis. The audio head pair is provided with an azimuth angle with opposite polarities from each other and different in value from that of the video head pair. The system has a first operation mode of the standard tape speed and a second operation mode in which the tape is fed at a speed, for example, 1/3 the standard tape speed. The audio and video head pairs are disposed on lines intersecting at right angles with an offset of T.sub.1 /2+T.sub.1 provided in the axial direction of rotation between the two magnetic head pairs, where T.sub.1 is the track pitch of the recording track formed on the tape in the second operation mode. The system produces overlapping tracks for the audio and video signals on the magnetic tape.