摘要:
Moving coils of a phonograph pickup are made of a substance having magnetoresistance so that the electrical resistance of the coils are detected by means of bridge circuits. The amounts of resistance variation of the coils are used to produce a vertical component output signal and a horizontal component output signal which respectively indicate the vertical and horizontal displacements of the coils from its optimum operating point with respect to the magnetic field of the pickup. The vertical and horizontal component output signals are used to control vertical and horizontal control motors which correct the attitude of the tone arm so that the moving coils are accurately positioned at the optimum operating point irrespective of the warp and/or eccentricity of the phonograph disk.
摘要:
A solid-state imaging apparatus comprising first means for sample-holding spike noise generated from a horizontal switching element constituting the apparatus second means for sample-holding spike noise opposite in phase to the first-mentioned spike noise, and third means for adding outputs of the first and second means.
摘要:
A moving-coil type pickup cartridge comprises a vibration system including a stylus for tracing a sound groove of a record disc, at least one coil plate adapted to vibrate in response to vibration of the stylus of the vibration system, and an arrangement for producing magnetic fields with respect to the coil plate. The coil plate has at least one coil formed by thin film in a spirally-shaped pattern. The magnetic field producing arrangement has at least one permanent magnet for producing magnetic fields wherein are produced magnetic fluxes of mutually opposite directions respectively in regions of the coil resulting from substantially halving of the coil in the vibration direction thereof.
摘要:
A moving-coil type pickup cartridge comprising a cantilever provided at the free end thereof with a stylus for tracing a sound groove of a record disc, a coil plate provided on the cantilever in a manner to vibrate in response to vibration of the stylus, and an arrangement for producing an effective magnetic field within a specific gap. The coil plate comprises a thin electrically insulating base plate and at least one coil which is formed from a thin film in a spirally-shaped pattern on at least one surface of the base plate. The coil plate has at least one upright part formed by bending the base plate together with a portion of the coil and interposed in a freely vibratory manner within said gap of the magnetic field producing arrangement and a mounting part integrally joined to the upright part and fixed to the cantilever.
摘要:
In a solid-state imaging device having photodiodes which are arrayed in the form of a matrix, horizontal output switches and vertical output switches are selectively closed in order to sequentially detect signals stored in the photodiodes, and a horizontal shift register and a vertical shift register supply switching pulses to the switches. A common potential line of both the shift registers is held at a predetermined D. C. potential with respect to ground potential, whereby the dynamic range of the photodiodes is expanded.
摘要:
A tire chain for the protection and slip prevention of vehicle tires comprising a number of main metal nets and a number of supplemental metal nets, whereby the necessary number of main and supplemental metal nets respectively are disposed side by side in accordance with the peripheral length of the tire on which the chain is to be mounted and adjoining metal nets are connected together by suitable connectors.
摘要:
A color pick up tube having a target structure comprising a transparent substrate a plurality of red, green and blue optical strip filters, each having a width F, mounted interleavely on one surface of the substrate, a thin glass layer, having a thickness T, mounted on the optical strips, a plurality of optically transparent, electrically conductive strips each having a width N, laid down on the thin glass layer such that each conductive strip corresponds to a respectively different optical strip.In order to prevent optical color cross talk, the widths F, N and the thickness T have the following relationship ##EQU1## WHERE .theta. IS THE INCIDENT ANGLE IN THE GLASS LAYER.