Showing papers by "Panasonic published in 1982"

High frequency heater

Abstract: Dispositif chauffant a haute frequence pouvant chauffer un article par induction. High-frequency heating device capable of heating an article by induction. En ce qui concerne la source d'oscillation a haute frequence, ce dispositif chauffant est construit de maniere a diviser la sortie d'un oscillateur a semiconducteur unique (1) en deux parties au moyen d'un distributeur de puissance (2), les deux sorties sont amplifiees par des amplificateurs de puissance (3), (4), et sont appliquees a une chambre de chauffage (7) au moyen de deux antennes (A2), (A3) respectivement. As regards the source of high-frequency oscillation, this heating device is constructed to divide the output of a single semiconductor oscillator (1) into two parts by means of a power distributor (2), the Both outputs are amplified by the power amplifiers (3), (4), are applied to a heating chamber (7) by means of two antennas (A2), (A3) respectively. Les phases des ondes de radio sont commandees de maniere a produire la puissance electrique dans la chambre de chauffage (7). The phases of radio waves are controlled so as to produce electric power in the heating chamber (7).

Hybrid integrated circuit component and printed circuit board mounting said component

Abstract: A hybrid integrated circuit component for insertion in a slit of a mother printed circuit board, and a method of mounting the hybrid integrated circuit component. The circuit component includes a flexible circuit board composed of a flexible insulated substrate, a circuit conductor formed on one side of the substrate, and a pair of conductor layers formed along opposite sides of the substrate to serve as external connection terminals. Circuit elements are mounted on the substrate and electrically connected to the circuit conductor. A pair of hard supporting plates are cemented on the other surface and at the opposite sides of the substrate so that the flexible circuit board can be folded at a center bending portion of the substrate so that the supporting plates face each other and so that the connection terminals are arranged close to each other when the substrate is folded and so that the substrate at its bending portion, when folded, has a sufficient spring characteristic for ensuring contact between the slit of the mother printed circuit board and each of the connection terminals, when the connection terminals are inserted into the slit of the mother printed circuit board.

Electrochemical measuring apparatus comprising enzyme electrode

Abstract: An immobilized enzyme electrode effective in measurement of the substrate concentration of the enzyme and in conversion from enzyme reaction energies into electric energies. The immobilized enzyme, of an oxidase system, such as glucose oxidase, amino acid oxidase, xanthine oxidase or the like and a metal oxide capable of constituting a redox system which is reduced through coupling with these enzyme reactions and is electrochemically oxidized (anodic oxidation) are combined with each other. The use of the enzyme electrode allows the determination quantity of the enzyme substrate as extremely low as approximately 10 -5 to 10 -6 mole/l in concentration.

Booster for transmitting digital signal

Abstract: For voltage on a digital signal line whose load capacitance is comparatively large as in a bus line of a CMOS integrated circuit, a detection is made that said voltages enter into a specified voltage range between the ground voltage and the power supply voltage, then based on such detection the voltage on said signal line is raised up or pulled down rapidly by a current injection means or a current ejection means, respectively, thereby the signal propagation delay is reduced.

Optical data recording and reproducing apparatus

Abstract: A modulation and demodulation system for an optical data recording and reproducing apparatus is disclosed in which, in an optical disc having an optical guide track and capable of recording and reproducing optically, the guide track is divided into a plurality of data sectors and the recording or reproduction or reading is effected by data sector The modulation system for the data field for recording the data is different from that for the identification field containing identification data such as a track address and a sector address in such a way that the identification field is reproduced at high reliability and high demodulation speed while at the same time recording data at high density in the data field

Apparatus for laser light medical treatment

Abstract: A laser light medical treatment apparatus has a contact detection means comprising a pair of contact tips 16a, 16b on both sides of a laser light emission hole 6 so that when the hand set 1, 30 of the apparatus is applied on the skin of a patient. The contact tips detect touching on the skin by means of a small conduction current thereacross, thereby closing a switching circuit 46, 44 to actuate the laser 4 to oscillate. In addition, warning sound means 8 and warning lamp means 7 are provided so as to warn of the light beam emission of the laser, which light is invisible and dangerous to the human eye.

Cooker with heating control system

Abstract: A highly automationed cooking apparatus especially suitable for stew cooking or the like liable to boiling over. Temperature of outer bottom face of a pan is measured by a sensor and temperature gradients are sampling-measured at a sampling time pitch. Boiling point of food material is detected by finding a decrease of the temperature gradient, and thereafter the heating is lowered to avoid boiling over to a suitable value which is given by processing the temperature gradients.

Pulse signal amplitude storage-holding apparatus

Abstract: A pulse signal amplitude storage-holding apparatus utilizes a plurality of series connected storage-holding circuits which store and hold the pulse magnitude of an electrical pulse signal whose amplitude is to be stored. At least one electrical pulse signal amplitude compensating circuit may be added to compensate for a storage error with respect to the pulse magnitude of the electrical pulse signal caused by the charge and discharged characteristics of each of the storage-holding circuits. In the alternative, at least one of the storage-holding circuits may be arranged so as to output an output signal accompanied by an overshoot of a fixed amount with respect to the input pulse signal, the overshoot thereby compensating for the abovenoted storage error.

Glass antenna system for an automobile

Abstract: A glass antenna system for an automobile comprises a main antenna disposed at an upper part of a glass plate for a rear window of the automobile and a defogging electric heating element disposed below and separate from the main antenna and comprising a plurality of heating strips and a pair of bus bars for supplying electricity to the heating strips. The glass antenna system is characterized in that a lead wire is connected to a predetermined portion of the lower most heating strip among said heating strips and a feeding point for connection to an antenna feeder line is provided on the lead wire, whereby the defogging electric heating element constitutes a subsidiary antenna having a directivity different from the directivity of the main antenna.

Device for controlling and displaying the functions of an electric or electronic apparatus

Abstract: An operation control device is disclosed for initiating operations of electric or electronic apparatus such as microwave ovens, radio receivers and tape recorders. The device includes an operation section having a housing made of non-conductive material and an operation electrode accommodated in the housing, and a detection circuit which detects whether an external stimulus, such as a finger of a user, is touching the outside surface of the housing, thereby producing an activation signal. When an activation signal is detected, the detection circuit produces an operation order signal to cause a control circuit to control operation of a corresponding electric or electronic apparatus.

Hydrogen gas purification apparatus

Abstract: A hydrogen gas purification apparatus which includes at least one set of two hydrogen purification containers coupled to each other for heat exchanging therebetween, each of the hydrogen purification containers containing a hydrogen absorbing alloy. The hydrogen gas purification apparatus is so arranged as to cause hydrogen gas to be selectively desorbed from and absorbed into the hydrogen absorbing alloy by the amount of heat produced when the hydrogen gas is selectively absorbed into and desorbed from the hydrogen absorbing alloy.

Picture display device

Abstract: A picture display device comprising an electron source for producing band-shaped electron beams, electron beam control means for controlling the selective passage of the electron beams, deflection means for horizontally and vertically deflecting the electron beams and display means for emitting light in response to impingement of the electron beams thereon. The electron source comprises a plurality of linear thermionic cathodes, a focusing electrode for focusing the electron beams emitted from each linear thermionic cathode to band-shaped electron beams and an electron beam emitting electrode having a plurality of apertures therethrough, and a negative pulse voltage is sequentially applied to the linear thermionic cathodes to emit the required electron beams for one scanning line.

image display apparatus

Abstract: The video image display apparatus of flat tube type comprising a phosphor screen, an electron beam source having a predetermined number (15) of line cathodes for in turn emitting said predetermined number of horizontal rows of electron beams, each row having a second predetermined number (320) of rod shaped electron beams, horizontal deflection means for horizontally deflection of the electron beams, vertical deflection means for vertical deflections of the electron beams of the horizontal rows, switch pair means of said predetermined number, each switch pair means comprises each-other oppositely working first switching means and second switching means, in each switch pair means the first switching means switches cathode heating current and the second switching means switches cathode bias voltage to bias a selected cathode in turn to enable electron emission, the switch pair means being controlled by switch control signal in turn impressed thereto.

Optical having index mark and sector mark

Abstract: The disclosure is directed to an optical recording and reproducing disc in which each track circumference of guide tracks formed into a concentric or spiral configuration is divided into a plurality of sectors for selective recording and reproduction of information in any desired sectors Sector separating zones of predetermined configuration are provided at starting portions of the respective sectors, while predetermined sector marks indicating the sector separating zones are formed on an index track provided at an outer or inner periphery of the disc in positions corresponding to the sector separating zones so that, during selection of the sectors at recording and reproduction, reproduction signals by the sector marks are used for selection of the sectors, while starting of the recording and reproduction is effected by the reproduced information of the sector separating zones

Semiconductor laser driving system

Abstract: A system for driving a semiconductor laser which is especially adapted for use with an optical recording and reproducing device is disclosed. In the write mode the power of laser light emitted from the semiconductor laser is so raised above a threshold or critical level that the laser beam focused on the surface of a recording medium can cause physical, chemical or electromagnetical changes thereof, but in the readout or reproduction mode, the power of laser light is lowered than the threshold or critical level and focused on the recording medium. A laser light power control loop is provided which is enabled or energized only in the readout or reproduction mode, so that the laser light can be maintained at a predetermined level. On the other hand, this control loop is disabled in the write or recording mode so that a predetermined value of current is superposed on the readout current sampled and held immediately before the write or recording mode is initiated and the current thus superposed flows into the semiconductor laser, whereby the power of laser light can be rapidly raised from the readout or reproducing laser light power to the write or recording laser light power.

Coaxial dielectric resonator having different impedance portions and method of manufacturing the same

Abstract: A coaxial dielectric resonator for VHF-UHF band comprises a generally cylindrical dielectric body having a thick portion, a thin portion and a stepped portion interposed between the thick and thin portion. The outer and inner surfaces of the dielectric body are respectively covered by outer and inner conductors. Thus the resonator can be regarded as a series circuit of two lines having different impedance from each other. The axial length of the thick and thin portions may be changed so as to change electrical characteristics. With the provision of thick and thin dielectric portions, the spurious resonance frequencies may be set to values other than integral multiples of the fundamental resonance frequency. The stepped portion may be rounded or replaced with a tapered portion so that impedance gradually changes at the stepped or tapered portion from the thick portion to the thin portion or vice versa.

Gear shifting speed change apparatus for a rotary electric tool

Abstract: A gear shifting speed change apparatus for a rotary electric tool such as a drill having an electric motor driving a first pair of unequal diameter pinion gears which are in continuous driving engagement with a second pair of pinion gears. The gears of second pair are independently mounted next to each other for free rotation on a shaft having an axial keyway. An axially sliding key is manually shifted to engage either one, but not both, of the second pair of gears by means of a pair of projections extending radially outwardly from the sliding key, one projection being axially outside the outer face of each gear and engageable with a recess in the outer face of the adjacent gear.

Color television camera

Abstract: A color television camera comprises a color pickup device such as color pickup tube, an automatically detachable infrared cut filter disposed in the light path to an image receiving face of the pickup device, a brightness detection means which changes its output signal when brightness becomes under a certain predetermined level, a driving means for driving the automatically detachable infrared-cut filter to be removed from the light path to the image receiving face, and a video signal circuit including a switching circuit to operate in such a manner to switch the circuit to constitute a color video signal producing circuit when the brightness is over the predetermined level and accordingly the infrared-cut filter is inserted in front of the image receiving face, and on the other hand to switch the circuit to constitute a monochrome video signal producing circuit when the brightness is below the predetermined level and accordingly the infrared-cut filter is removed from the front of the image receiving face.

Programmable channel selecting apparatus

Abstract: A programmable channel selecting apparatus to be disclosed is comprised of a manually operated switch for selecting desired channels and for inputting preset times for desired channel reception, a channel selecting circuit for driving a tuner and a channel indicator in manual/auto channel selecting mode, a channel preselecting circuit which, in channel preselection mode, memorizes a desired channel and a desired time for the channel reception in advance while at the same time causes a channel indicator to indicate the preselected channel and in auto-channel selection mode, applies a preselected channel signal to the channel selecting circuit when time reaches the preset time, those being all connected a common signal line, and an inhibiting circuit for preventing an erroneous operation With such a construction, inputting and displaying of a selected channel and a preset or preselected channel can be made through one system of a channel preselection switch and a channel display The programmable channel selecting apparatus is well adapted for home-use VTRs

Computer with expanded addressing capability

Abstract: A computer system has an addressing capability many times greater than the number of address which can be generated by its binary address lines through the use of a plurality of addressable banks (14, 16, 18, 22, 30, 34) (memory, addressable peripherals or addressable system controls) in each of a plurality of different ranges, (II, III, IV) with several different banks in each of said plural address ranges being useable in combination for any given mode of operation or program. Bank selection within an address range is effected within program control by first supplying (1) an address which enables a bank select decoding latch (28), and (2) a data code for selecting the desired bank, whereupon the bank will be latched and enabled for use in a later normal addressing operation. ROM banks (14, 16, 18), implemented in monolithic circuit form, are selected by decoder latch outputs (D2, D1, D0) which cause the bank (40) to be energized from a non-energized state, thereby eliminating (1) the need for a separate chip-select terminal, and (2) standby power consumption. Addressable peripheral equipment and system controls (30, 34) (non-ROM hardware) are mapped in an address range (III) containing ROM banks. Writing to this address range automatically goes to the non-ROM hardware since the ROM banks are incapable of receiving data. Reading from the non-ROM hardware is effected by preselecting non-ROM hardware through the use of specific data codes.

Optical recording and reproducing disc

Abstract: An optical recording and reproducing disc for recording and/or reproducing information by the application of laser beams having a wavelength λ in the range of 0.7 to 1.0 μm, the disc being constituted by a disc-shaped base having at least one spiral guide track thereon with top surfaces parallel to the surface of the base at a height above the base different from the top surfaces of the portions of the base between the spires of the track, which height is in the range of λ/12 to λ/6, the guide track having a width approximately equal to the effective diameter of the laser beams; and a uniform thickness coating of a light recording material on the top surface of the guide track and the portions of the base between the spires of the guide track, the light recording material being a material the transmittance and/or the reflectance of which is varied by irradiation by the laser beams.

Method and apparatus for thawing by high frequency heating

Abstract: A method and an apparatus for thawing a frozen food by high frequency heating is disclosed. The thawing process is divided into at least four stages of execution. A high frequency wave output is predetermined for each stage, and the execution time of each stage is automatically computed by a function stored in a microcomputer with the weight of the food stuff as a parameter. These plurality of stages are executed thereby to realize a faster and satisfactory thawing of the frozen food stuff.

Method of making flexible printed circuits

Abstract: A disclosed method of continuous making flexible printed circuits for use in radio set or the like appliances, includes punching holes in a continuous copper-film clad insulating substrate, forming photopolymer films on the faces of the copper films exposing the photopolymer film to photochemical light of a predetermined pattern, developing the exposed photopolymer film, etching the copper film utilizing remaining parts of the photopolymer film as etching masks, removing the remaining photopolymer films 40 and printing solder-resist films on selected parts. The improvement is to provide and retain selected oblong parts of said conductor metal film disposed on and parallel to longitudinal direction of the continuous substrate by, for example, covering these parts by etching-resist films. The retained oblong parts of the metal film serve to prevent shrinkage of the substrate during the conduct of further manufacturing steps thereby assuring registration of the patterns of the printed circuits and the printed solder-resist films.

Automatic heating apparatus with sensor

Abstract: An automatic heating apparatus comprising a sensor such as a humidity sensor or a gas sensor which senses water vapor, alcohol, CO 2 gas or the like emitted from a foodstuff being heated for automatically completing cooking. A microcomputer, which is a controller, monitors variations in the quantity of emitted water vapor, CO 2 gas, alcohol or the like with respect to time and, on the basis of the result of this monitoring, decides automatically whether the foodstuff is covered or not with a plastic sheet or is enclosed or not in a lidded container. According to the result of this decision, the heating data including the heating duration and heating output are modified so as to attain optimum heating regardless of the presence or absence of the cover or regardless of the volume of the lidded container.

Liquid crystal color display panel

Abstract: The present invention provides a liquid crystal color display panel of improved positive contrast by utilizing the so-called Guest-Host effect.

Method and apparatus for processing binary data

Abstract: A method is disclosed for processing binary data prior to magnetic recording. The binary data is divided into 4-bit data segments which are converted to 8-bit codes according to a predetermined encoding transfer function describing the relationships between the 4-bit data segments and corresponding 8-bit codes, wherein the bit pattern of each 8-bit code has an intra-code run-length of at least two "0" bits and forms an inter-code run-length of from at least two "0" bits to at most nine "0"bits with an adjacent 8-bit code. The method further includes the step of generating a frame synchronization code and interleaving it with 8-bit codes to form a frame of binary digits. The frame sync code has a bit pattern which is unduplicatable by any combination of 8-bit codes that follow.

Piezoelectric thin films of zinc oxide for saw devices

Abstract: Fabrication processes of piezoelectric ZnO films utilizing sputtering deposition technique and properties of the sputtered films are described mainly in view of their application to surface-acoustic-wave (SAW) devices. Both polycrystalline films with c-axis orientation and single-crystal films on sapphire are treated in this paper. As for the polycrystalline films, it is emphasized that an improved sputtering system with a hemispherical electrode configuration provides excellent uniformity of film thickness and c-axis orientation. The single-crystal films have been successfully grown by conventional rf-sputtering and rf magnetron sputtering. The rf magnetron sputtering is found to be superior over the conventional method with respect to SAW properties of the films. Fundamental SAW properties have been measured for the films and the results are compared with theoretical predictions. Several SAW devices in a wide variety of operating frequency (30–2200 MHz) have been realized using the ZnO films. S...

Method of connecting metal leads with electrodes of semiconductor device and metal lead therefore

Abstract: A method suitable for connecting a plurality of metal leads at the same time with electrodes of a semiconductor device. Metal leads are provided each of which has a metal bump bonded thereto. The metal of the metal bump is softer than that of the lead. Those metal leads are located above the semiconductor device so that the bumps are contacted with the electrodes and then the bumps are bonded to the electrodes by heating, whereby the metal leads are connected with the electrodes.

Heat accumulating material

Abstract: The heat accumulating material provided according to this invention makes use of the latent heat of fusion of sodium acetate trihydrate, and it comprises, as blended in a system consisting of sodium acetate and water, at least one nucleation catalyst selected from the group of compounds consisting of tetrasodium pyrophosphate, trisodium monohydrogenpyrophosphate, disodium dihydrogenpyrophosphate and monosodium trihydrogenpyrophosphate. In use of this heat accumulating material, the sodium acetate trihydrate would not be overcooled owing to the overcooling preventing function of the nucleation catalyst but is unfailingly crystallized at a temperature close to the fusion point thereof to radiate latent heat of fusion. The overcooling preventing performance of the nucleation catalyst is not deteriorated even if it is subjected to more than 1,000 cycles of repetition of fusion and solidification, and thus the heat accumulating material maintains a very stabilized heat absorbing and radiating capacity.

Magnetic head incorporating an amorphous magnetic metallic film having a thickness equal to a track width

Abstract: A magnetic head includes at least a core for constituting a magnetic circuit and a magnetic gap formed in the core. The core comprises an amorphous magnetic metallic film formed on a non-magnetic high-resistance substrate so that one of the end faces of the non-magnetic high-resistance substrate and the amorphous magnetic metallic film may be brought into contact with a magnetic recording medium.