Showing papers by "Sony Broadcast & Professional Research Laboratories published in 1989"

Touch panel apparatus

Abstract: A touch panel apparatus of the type in which a plurality of photo-detecting pairs generate a plurality of detecting beams which cross the display surface and including a circuit for reducing the sensitivity of the photo-detecting pairs at the corners of the display surface to prevent malfunction due to reflected beams caused by the relatively higher intensity beams at those locations resulting from the relatively shorter beam lengths

Method of making a superlattice heterojunction bipolar device

Abstract: A semiconductor apparatus is disclosed, in which the entire or part of an electron active region is formed by a superlattice structure semiconductor layer in which a plurality of different semiconductor layers, less than 8 monolayers, and containing a fraction or a binary compound semiconductor layers are alternately and epitaxially grown and a main current direction is selected to be in the direction perpendicular to the laminae of said superlattice layers.

Thin electronic device having an integrated circuit chip and a power battery and a method for producing same

Abstract: A method for producing an information card by printing an electroconductive pattern and a first electrode surface of a battery on a first cover sheet, applying a battery activator onto the first electrode surface, resting an electrolyte-impregnated separator onto the first electrode surface, fixing an IC chip to the electroconductive pattern in a predetermined position, printing a second electrode surface of the battery on a second cover sheet, applying a battery activator onto the second electrode surface, and lapping and sticking the first and second cover sheets together and cutting them into a predetermined size.

Home-bus-information system

Abstract: A home-bus-information display system arranged such that the control status of each of a plurality of home apparatus can be monitored via home bus-lines and additively displayed over a video program on the picture screen of a television receiver to allow a viewer to monitor the control status of each of other home electric apparatus, a security system and so on in a centralized-control fashion.

Co/Pt and Co/Pd ultrathin-multilayered films as new magneto-optical recording materials

Abstract: Co/Pt and Co/Pd multilayer films were prepared by magnetron-type sputtering. Both multilayer films exhibited perpendicular magnetic anisotropy at Co layer >

Magnetic recording and/or reproducing apparatus

Abstract: OF THE DISCLOSURE In a system for recording digital data obtained based on an information signal on a magnetic tape and/or reproducing digital data obtained based on an information signal from a magnetic tape, a magnetic recording apparatus comprises an encoder for producing, based on the information signal, one of plural kinds of digital data which have different transmission rates respectively, a time base processor for selectively converting a time base of digital data obtained from the encoder so as to produce modified digital data having a predetermined transmission rate, a recording modulator for producing a recording signal corresponding to the modified digital data, a recording portion provided with a rotary magnetic head device to which the recording signal is supplied and a tape guide for guiding the magnetic tape and operative to cause the rotary magnetic head device to contact with the magnetic tape for forming oblique record tracks on the magnetic tape, a head driver for rotating the rotary magnetic head device at a predetermined speed of rotation, and a tape driving device for causing the magnetic tape to run at a speed corresponding to the transmission rate of the digital data obtained from the encoder.

Cell having current cutoff valve

Abstract: A cell having an explosion proof valve is dislosed, in which the valve is deformable upon increase of inner pressure of the cell to cut a connection lead which connects the valve with a generator unit contained in the cell. The supply of charging current is cut off when the inner pressure of the cell has abnormally increased. The gradual increase of the inner pressure can be effected by selecting suitable cathode active material.

Apparatus for generating, recording or reproducing sound source data

Abstract: An apparatus for looping or data-compressing sampled waveform data digitized from musical sound signals (or the like) to produce sound source data, recording the sound source data on a storage medium, and reading out the sound source data from the storage medium for reproduction. To eliminate amplitude discontinuities at repetition points during looping, two connection samples of repetitive waveform portions having values closest to each other are selected from actual samples and interpolated samples. An interpolation filter performs multiple oversampling to produce the interpolated samples. The interpolation filter includes a filter for each degree of oversampling, and all the filters have the same amplitude characteristics. By asserting pulse code modulated data at the beginning portion of a looping domain, adverse compression effects can be avoided without the necessity of providing compression parameters. When reading out sound source data from the storage medium, a data start address and a looping start address are loaded, in that order, into an address generator. A discriminating flag indicating the presence or absence of the looping domain and a discriminating flag indicating the end of the sound source data can be included in the sound source data to facilitate control of looping or end of reproduction.

Second harmonic generation

Abstract: A second harmonic generator having a non-linear optical crystal element for generating a second harmonic laser light In this second harmonic generator, a birefringent element is inserted into a resonant optical path of a fundamental wave laser light, whereby the second harmonic laser light emitted as an output laser light is stabilized

Remote commander having a ROM read-out pre-programmed codes therefrom

Abstract: A multi-commander includes a first memory for storing a plurality of remote control signals having different signal formats, a circuit for receiving a remote control signal from another remote commander, a rewritable second memory, a remote control signal transmitting circuit for transmitting a remote control signal derived from the first memory, and a mode switch for selectively switching between the setting mode and the remote control mode. When the mode switch is in the setting mode, the signal format of the remote control signal derived from the other remote commander and received by the remote control signal receiving circuit is identified and the signal format of the remote control signal from the other remote commander is read out of the first memory and is then written in the second memory. When the mode switch is in the remote control mode, the signal format written in the second memory is supplied to the remote control signal transmitting circuit in order to control a selected one of a plurality of electronic devices.

Holding structure for displaying apparatus

Abstract: A holding structure for a displaying apparatus for a socalled wrap top type electronic apparatus includes a first holding portion and a second holding portion on each lateral side of the displaying apparatus. The first holding portion is turnably connected to one end of a holding member having its other end turnably carried by the main body of an electronic apparatus, whilst the second holding portion is slidably held by a slide guide member provided on the main body of the electronic apparatus for extending in its for and aft direction. A frictional unit is provided at least at one of the swinging portions between the first holding portion and a holding member, between a second holding portion and a slide guide member and between the holding member and the main body of the electronic apparatus for turnably holding the displaying apparaus with respect to the main body of the apparatus while enabling the pivot point of turning of the displaying apparatus with respect to the main body of the electronic apparatus to be moved back and forth with the opening and closure of the displaying apparatus and reducing the amount of shift of the center of gravity of the displaying apparatus to enlarge the size of the displaying apparatus.

Combined video recorder and camera with superimposition of video and data

Abstract: A video recording apparatus having a built-in type camera which includes an imager for picking up an object and a recorder for recording a video signal derived from the imager in accordance with a predetermined format having an analog-to-digital converter for converting the video signal from the image to digital image data, a memory for storing the digital image data, a converting circuit for converting the image data read out from the memory to an image signal, a superimposing circuit for superimposing the image signal formed of the image data upon the video signal from the imager, a control circuit for controlling the writing and reading of the image data in the memory, a first operation switch for causing the control circuit to store the image data in the memory, a second operation switch for causing the control circuit to superimpose the image signal upon the video signal, and a third operation switch causing the control circuit to designate the color of the image signal, wherein when the second operation switch is in its OFF-state, the third operation switch is operated as a selection switch of other camera mode functions.

Coding apparatus for encoding and compressing video data

Abstract: A difference between an original digital value of a picture element to be encoded and an original digital value of a spatially adjacent picture element of the picture element is determined by a detecting circuit. The video data of the spatially adjacent picture element is decoded to generate a decoded value by a local decoder. A compressed encoded video data of the picture is generated wherein a difference between a decoded value of the compressed encoded video data and the decoded value is closest to the difference.

Electronic organizer with electronic book marker

Abstract: A portable computer has incorporated therein a central processing unit, a display apparatus and a timer circuit. This portable computer is also provided with exclusive operation keys, wherein image data corresponding to a predetermined condition can be displayed on the display apparatus only by depressing the predetermined exclusive operation key and schedule data judged from a date of present time point can also be displayed on the display apparatus only be depressing the predetermined exclusive operation key.

Data transmission and reception apparatus and method

Abstract: A data transmission and reception apparatus and method capable of selecting either of two modes having the same sampling frequency in which the bit numbers of one data unit are either m or n (which are integral numbers and m>n), while using the same error correction encoder and decoder for the two modes, by inserting m-n bits of dummy data bits into the n-bit data so as to handle it as m-bit data during the processes of error correction encoding and decoding.

Photoluminescence spectra of oxygen-doped ZnSe grown by molecular-beam epitaxy.

Abstract: The optical properties of oxygen-doped ZnSe grown by molecular-beam epitaxy were studied by means of photoluminescence spectroscopy. Oxygen-related peaks were observed at about 4437 and at about 4550 A\r{}, where phonon replicas also appeared. These peaks may be caused by the radiative recombination of excitons bound to neutral oxygen atoms and donor-to-oxygen-acceptor emission, respectively. Observation of donor-acceptor emission in which the acceptor is an isoelectronic acceptor is reported for the first time. Oxygen, which is an isoelectronic impurity in ZnSe, can act as an acceptor in the same way as the generally used dopants such as nitrogen. A model for the oxygen in ZnSe acting as an acceptor is proposed. The acceptor level and the effective charge of oxygen are estimated to be about 80 meV and -0.9, respectively, using the energy values of the luminescence peaks of bound-exciton and donor-acceptor emission.

Recording and reproducing digital video and audio signals together with a time code signal which is within user control words of the audio data

Abstract: In recording a time code signal together with digital video and audio signals, at least one channel of a digital audio signal is supplied to rotary heads scanning successive slant tracks on a tape for recording in intermediate sections of the slant tracks, a digital video signal is supplied to the same heads for recording in other sections of the slant tracks situated before and after the intermediate sections and being relatively longer than the latter, and the time code signal is also supplied to the rotary heads for recording in the intermediate sections with the same time codes being represented by the time code signal recorded in the intermediate sections of a successive plurality of the slant tracks which contain the digital video signal for a respective frame.

Data recording and/or reproducing method and data recording medium

Abstract: The present invention is concerned with a method for modulating and recording data, in which the data are modulated in such a manner that m-bit data are converted into n-bit data, where m and n are real integers and m

Apparatus for defining an effective picture area of a high definition video signal when displayed on a screen with a different aspect ratio

Abstract: In an apparatus for converting received video signals of a first format, which has a first number of horizontal lines in a field or frame and a picture display of a first aspect ratio, to video signals of a second format, which has a second number of horizontal lines in a field or frame and a picture display of a second aspect ratio; an analog-to-digital converter converts the received video signals of the first format to digital video signals, a memory has addresses at which there are written at least a field of the digital video signals of the first format, whereupon, a reading circuit reads from the memory addresses less samples of the digital video signals than were written in the memory and the digital video signals thus read from the memory are converted back to analog form, and a controller is provided for variably determining a start address of the addresses in the memory from which video signal data are read. In the case where the first aspect ratio is larger than the second aspect ratio, the selection of the start address determines a portion or portions of the picture display of the first aspect ratio to be omitted at least at one side of the picture display of the second aspect ratio.

Method of making a thin film transistor

Abstract: The present invention relates to a semiconductor device in which a semiconductor element is formed on a semiconductor layer (3) supported on a substrate (1) via at least insulating layers (2) and (4) as shown in FIGS. 1 and 2 and a method of fabricating the same. The semiconductor layer (3) has wiring layers (5) and (6) on both surfaces thereof, thus leading itself well for increasing the density of wiring and for increasing the operation speed in a large-scale integrated circuit device.

Non aqueous electrolyte cell

Abstract: An improved non-aqueous electrolyte cell is disclosed in which specific carbonaceous material is used as an anode. The carbonaceous material has interlayer spacing d 002 of not less than 3.70 A, true density not larger than 1.70 g/cm 3 and no exothermic peak not less than 700° C. upon differential thermal analysis under air stream. The combination with cathode active material containing Li in an amount not less than 250 mAH/g in term of charging/discharging capacity, provides superior cyclic life characterisitcs and large capacity.

Liquid crystal display unit having large image area and high resolution

Abstract: A liquid crystal display unit is provided wherein address lines for two mutually adjacent odd and even rows of pixels arrayed in a matrix are in common, and two vertical pixels on each column can be displayed simultaneously to enable display of an image corresponding to one frame. Capacitor forming electrode wires are supplied with a fixed potential are disposed between omitted rows of address lines eliminated due to the common use thereof, whereby the storage capacitors are of a sufficiently high value, even with a high resolution display, to enhance the image quality of the liquid crystal display unit. Since a fixed potential is applied to the capacitor forming electrode wire which forms the storage capacitor, the capacitor does not apply a load to the address line and thereby consistently insures a fast operation. As a result, improvements can be achieved relating to large image area and high resolution. Furthermore, each pixel includes a switching transistor which is composed of a thin film transistor having a high carrier mobility and is formed under a single line so that even when the on-resistance of the transistor is lowered, the aperture ratio of the pixel is still enhanced to obtain a high resolution.

Pcm data transmitting apparatus and method

Abstract: A data transmission and reception apparatus and method capable of selecting either of two modes having the same sampling frequency in which the bit number of one data unit are either m or n (which are integral numbers and m>n), while using the same error correction encoder and decoder for the two modes, by inserting m-n bits of dummy data bits into the n-bit data so as to handle it as m-bit data during the processes of error correction encoding and decoding and eliminating from the error correction encoded data the dummy data and a redundant code of the error correction code formed by the dummy data so that the data transmission rate can be lowered.

Telephone apparatus providing for automatic transfer of stored data between handsets

Abstract: In a telephone system, when a predetermined key of a handset unit is operated data stored in a memory incorporated within the handset unit is transferred to a memory incorporated within another handset unit, so that data that was manually input for storage in the memory of the first handset unit can be copied to the memory of a second handset unit, to eliminate the requirement to manually input the same data into the second unit.

Digital signal transmission apparatus

Abstract: A digital signal transmission apparatus in which a digital signal having a header block of a predetermined length is transmitted. The header comprises a synchronization signal and auxiliary data. The auxiliary data is made up of first data or second data and a redundant error detection code. The redundant code is formed so that syndrome patterns of the error detection code are different in order to distinguish the block in which the first data is contained as the auxiliary data on the reception side, from the block in which the second data is contained as the auxiliary data so that a plurality of headers having different contents can be distinguished on the reception side.

Apparatus for attaching a display monitor to a seat

Abstract: A display (9) is attached to a reclining seatback (3) by an arm (8) pivotally fixed at a first end thereof to the seatback (3), with the display (9) being attached to the second end of the arm (8) by a pivot mechanism (14, 15, 16) having multiple degrees of freedom, and a recess (3a) for stowing the display (9) is formed in the seatback (3) either on its side, its top or behind a headrest.

Recording medium and recording and reproducing apparatus employing the recording medium

Abstract: According to the invention, control data of a predetermined number of bits are pre-recorded on the recording track of a recording medium in the form of burst-like changes of the recording track's width to provide for recording control and reproducing control based on the control data.

Ear piece transducer

Abstract: An ear piece transducer having a housing incorporating therein an electroacoustic transducer element, the housing being inserted into a concave portion of an auricle, and a ring member having resiliency sufficient to enable it to be attached to the outer peripheral portion of the housing, the ring member being formed so as to be thickest in one radial direction.

Sound reproducing apparatus

Abstract: A sound reproducing apparatus is provided formed of an acoustic tube having first and second opposite ends, and having substantially a same inside diameter as that of an external acoustic meatus of the user who is wearing the sound reproducing apparatus. A loudspeaker unit is mounted to the acoustic tube intermediate the first and second ends such that a sound radiating surface thereof is directed to one side of the acoustic tube. The acoustic tube has at its first end an auricular attachment which is received at the external acoustic meatus. A second end is formed as a non-sound-reflecting end. The sound reproducing apparatus may also be adapted to have two loudspeaker units mounted to one or more acoustic tubes, respectively, and two auricular attachment sections may be provided, one for each ear. Left and right channel acoustical signals may be respectively input to the respective first and second loudspeaker units for stereo operation.