Abstract: A radio pager of the present invention includes battery terminals each having an inductance component. The pager therefore reduces the fall of antenna efficiency as far as possible without resorting to any extra part. In addition, a coin type battery is located in the vicinity of short bars included in the pager so as to prevent the antenna efficiency from decreasing.
Abstract: A radio communication apparatus uses an intermediate frequency section to convert a signal from a receiver into an intermediate frequency signal. The intermediate frequency signal is filtered in a filter section, and then demodulated. Matching circuits with variable circuit constants connect the filter section with the intermediate frequency section and the demodulator. A control section supplies a transmitter with an input signal which is then transmitted to the receiver, converted to an intermediate frequency, filtered, and demodulated. The control section adjusts the variable circuit constants in accordance with the input signal and the demodulated signal. Thus, inappropriate circuit constants are adjusted so that the radio apparatus has a high receiving sensitivity without a mismatch.
Abstract: There is provided an adjustment circuit which delays a first and a second signal by a desired delay. After the first and the second signal are inputted to the adjustment circuit via a first and a second signal line, respectively, the first and the second signal are exchanged and are inputted via the second and the first signal line, respectively. A detection circuit receives the first and the second signal from the adjustment circuit, and detects the phase differences of these signals, before and after the exchange. The holding circuit holds a first phase difference detected by the detection circuit before the exchange, and holds a second phase difference detected by the detection circuit after the exchange. When the holding circuit holds the first and the second phase difference, a comparison circuit compares these phase differences. A counter counts in accordance with the comparison results of the comparison circuit, and sets the desired delay of the adjustment circuit.
Abstract: Signals outputted from microphones 111 and 112 are inputted through filters 118 and 119 to noise suppressing sections A and B. One having smaller power is selected from output signals S107a and S107b by switching a selection switch SW in a signal power comparing section 117, to which the output signals S107a and S107b have been inputted, and a transmission signal S108 level-adjusted by a level adjuster is outputted. In the noise suppressing section A (similarly in the section B), microphone output signals S102 and S103 are processed by an adder 113a and a subtracter 114a, a signal S105a outputted from the subtracter 114a is inputted to a subtracter 116a through a filter 115a having a transmission function Fa(z) decided by the positions of the microphones 111 and 112 and a noise suppression signal S107a obtained by subtracting the signal S105a from a signal S104a outputted from the adder 113a is outputted.
Abstract: When identification data 601 and required scene data 602 of a target object are inputted by specifying by a user, a memory 2 rewrites scene data of a stored target object image to required scene data. After that, a identification data extractor 52 extracts object image data and scene data of elemental and composite object images included in the object image specified from the memories 1 and 2. An object composer 41 composes the object image based on the object image data and scene data.
Abstract: In a check system for checking information indicative of connections in a multistage switching network comprising S stages of switching groups and a main control section for controlling the switching groups, the multistage switching network has a switching size of M by N (M.times.N) that is defined by M input lines and N output lines. Each of the switching groups comprises a plurality of switching sections each of which has a plurality of input terminals, a plurality of output terminals, a switching unit for use in connecting these terminals with each other, and a switch control unit for controlling the switching unit. The main control section comprises a memory unit which stores information indicative of connections between the individual switching sections. The main control section has a function of checking whether an output terminal having a specific number of a switching group in a C-th stage (C.ltoreq.
Abstract: A portable information terminal device with a radio selective-calling receiver including first and second receiver sections with first and second antennas, respectively, implements an improvement of the reception sensitivity deterioration caused by the noise of a personal computer attached to the device with any increase of the dissipation current generated by the receiver maintained at a minimum. Only when the portable information terminal device is connected to the personal computer will it operate in a diversity reception mode to implement both receiving sections, improving reception sensitivity deterioration. When the portable information terminal device is not connected to the personal computer, diversity reception is not implemented, thus permitting only one of the receiving sections to receive.
Abstract: In order to simulate, using a computer, a profile of sputter deposition on a contact hole formed on a semiconductor wafer, a plurality of trajectories of particles emitted from a sputter target are calculated. One of the trajectories is directed to a first coordinate point which is included in the profile of sputter deposition and with which an amount of sputter deposition is calculated. Thereafter, a plurality of shadow judgment planes are successively defined with respect to all coordinate points, after which a check is made to determine if the above mentioned one of the plurality of trajectories crosses each of said plurality of shadow judgment planes.
Abstract: The object of the present invention is to provide a time division multiple access radio data communication method wherein a radio time slot can be utilized effectively. In order to carry out data communication between data terminal equipment 1a connected to base station equipment 1 and a plurality of predetermined data terminal equipment 10a, 11a, 12a connected to those out station equipment 10, 11, 12 which face base station equipment 1, common radio time slot TS0 is allocated fixedly, and the plurality of predetermined data terminal equipment 10a, 11a, 12a send out request to send signals a0, a1, a2 at timings which do not overlap with each other.
Abstract: The present invention is a transmission system with a performance monitor function. The system has an end office, an opposite office located opposite the end office and an intermediate office located between the end office and the opposite office. In the transmission system each of the end office, the opposite office and the intermediate office has a transmitter/receiver for transmitting/receiving information and a performance monitor for monitoring performance of a transmission line. The intermediate office has a switch for switching lines and a bypass for bypassing the switch and for transmitting/receiving a signal to/from an adjacent office while the performance monitor is operating.
Abstract: A solid state image pickup device with built-in signal amplifier produces an image signal from an output potential signal produced from each charge packet by a charge converting unit, and the built-in signal amplifier includes a sampling-and-hold circuit connected between the charge converting unit and a signal amplifying circuit for changing a potential signal from a reset field-through potential level to a signal potential level, thereby eliminating a reset field-through noise from an input potential signal supplied to the signal amplifier.
Abstract: In a subscriber number transmission system in a multi-directional multiple communication system, a local switch generates a ringing signal and then generates an originator subscriber number. A base station generates a call reception message signal in response to the ringing signal from the local switch and stores the originator subscriber number transmitted from the local switch. A terminal station connected to a subscriber terminal receives the call reception message signal from the base station. In response to the call reception message signal, the terminal station outputs a ringing signal to the subscriber terminal and generates an originator subscriber number request message to the base station. The base station transmits the originator subscriber number in response to the originator subscriber number request message. The terminal station receives the originator subscriber number from the base station to output to the subscriber terminal.
Abstract: A lead structure includes an insulating film, a plurality of leads, and a plurality of adhesive layers separately provided on the insulating film. Two adjacent leads are fixed by adjacent adhesive layers, respectively, such that an adhesive does not exist on the insulating film between the adjacent adhesive layers. Therefore, ion migration between the leads through the adhesive layer can be prevented.
Abstract: In a quasi-three-level solid-state laser that is excited by a semiconductor laser, a temperature-controlling apparatus is used to operate the crystal temperature that enables optimum laser operation in terms of both efficiency and output, based on the effect that cooling the crystal has on reducing the efficiency of absorption of power from the semiconductor excitation laser and the effect that cooling the crystal has on lowering the oscillation threshold value.
Abstract: An amplifier circuit of the present invention comprises first and second signal lines transferred data from a memory cell, first and second nodes, a latch circuit coupled between the first and second nodes, a first MOS transistor coupled between the first signal line and the first node, and a second MOS transistor coupled between the second signal line and the second node.
Abstract: An optical head includes a fixed optical system having a first light source for outputting a first collimated light having a first wavelength, a first detection system for receiving a reflection of the first collimated light from a first optical disk having a first substrate thickness, a second light source outputting a second collimated light parallel to the first collimated light and having a second wavelength different than that of the first wavelength, and a second detection system for receiving a reflection of the second collimated light from a second optical disk having a second substrate thickness different than that of the first substrate thickness. A movable optical system includes an objective lens for focusing the first light on the first optical disk, and for focusing the second light on the second optical disk and an optical system for converting a wavefront of the second light and transmitting the second light to the objective lens.
Abstract: In a device for reproducing front MPEG 2 code a sequence of motion pictures, a slow-motion picture signal for N times slow motion playing is produced by combining the sequence of motion pictures reproduced and a plurality of interpolation picture sequences. Each of the interpolation picture sequences is interpolated between each one of the motion pictures and a succeeding one of the notion pictures. Each of the interpolation picture sequences comprises (n-1) interpolation pictures and in produced by calculating, from the motion vector data included in the MPEG 2, a motion vector between each one of the motion pictures and a succeeding one of the motion pictures, then calculating, from the motion vector, (n-1) interpolation motion vectors, and then producing the (n-1) interpolation pictures from the (n-1) interpolation vectors and the succeeding motion picture.
Abstract: An input circuit provided in a semiconductor integrated circuit, comprises an nMOS transistor having a source connected to an input node receiving a transmission signal, a drain connected to a first node and a gate connected to a reference potential, and a pMOS transistor having a source connected to a power supply voltage, a drain connected to the first node, a first inverter having an input connected to the first node and an output connected to an output terminal, and a second inverter having an input connected to the first node and an output connected to a gate of the pMOS transistor, so that when the nMOS transistor is turned on, the pMOS transistor is rendered off, whereby no steady input current flows.
Abstract: An atmospheric quasi-sound generating system for music performance includes a reproducing device for reproducing the sound of a piece of music from a recording medium to obtain a musical sound signal, an effective sound library for storing effective sounds to generate any atmospheric sound for music performance, a selection device for select a desired effective sound from the effective sound library to output information on the selected effective sound, a position determining device for determining the acoustic image position of the selected effective sound on the basis of the information on the effective sound to generate acoustic image position information, a stereophonic sound generating unit for disposing the effective sound to the determined acoustic image position to thereby output a stereophonic sound signal containing these sound information, and a mixing device for mixing the stereophonic sound signal and the musical sound signal reproduced from the reproducing device.
Abstract: At a transmitter side, signals are provided with a delay difference with a plurality of branches, coded multiplexed by spectrum spreaders and a combination unit, and transmitted by a single antenna. At a receiver side, the signals are received by a single antenna, and diversity branches are extracted and separated by first and second spectrum de-spreaders. They are subject to linear combination so that the mean square of the decision error signals is minimized. The output passes through an adaptive matched filter and an adaptive equalizer so as to provide an output from which interference waves are eliminated. Thus, interference is eliminated and diversity gain for a signal is ensured, while reducing the scale and cost of a system without using a plurality of antennae.