Abstract: A car security system has a proximity sensor such as a radar sensor with variable sensitivity and capable of producing a detection signal upon detecting motion of a person in a monitoring area. A control circuit is provided controls the sensitivity of said proximity sensor. The system also has a monitoring/alarming control circuit for control of predetermined monitoring and alarming control on the basis of the output from the proximity sensor, and alarming devices such as a headlight flash circuit, buzzer and siren for performing a predetermined alarming operation under the control of the monitoring/alarming control circuit. The sensitivity control circuit operates in response to a predetermined operation such as an arming start operation to vary the sensitivity of the proximity sensor so as to automatically set the sensitivity to a first sensitivity level which is the highest level within a range which does not cause the sensor to produce the detection output.

Abstract: A method of monitoring the sound within a car is disclosed. The occurrence of abnormality indicative of possible auto theft is reported to the driver who is remote from the car by means of the anti-theft system which transmits the occurrence of abnormality to a remote control unit and which turns on the power of the mobile telephone system, so as to make it ready for receiving external calls. The anti-theft system transmits to the driver the sound within the car collected by the microphone of the mobile telephone system, thereby making it possible for the driver at a remote place to ascertain the state of the car.

Abstract: A photoelectric converter connecting device including an elongated receptacle for receiving an optical converter unit and an optical fiber ferrule. The optical converter unit includes a lens holder, a lens fixedly connected to the lens holder by press molding, and a base including a photoelectric element. The photoelectric converter connecting device is assembled by heating and press molding the lens into the lens holder, then positioning and welding the base to hermetically seal the photoelectric element within the lens holder in a proper orientation with respect to the lens. The base is then welded to the elongated receptacle. Because the lens is press molded, the optical characteristics are more reliable than prior art index distribution type lenses.

Abstract: The present invention provides an automatically identifying decode apparatus comprising a decoder unit 1 and a counter 2, wherein:the decoder unit 1 further comprises a plurality of decoders for decoding digital data of different digital-data types and a decoder selector for sequentially selecting the decoders;the counter 2 is used for sequentially advancing a process of selecting the decoders of the decoder unit;digital data read out from memory is supplied directly to the decoders of the decoder unit;one of the decoders successfully decoding the digital data outputs decoded data; anda selected decoder failing to decode the digital data transmits an error signal to the counter 2, requesting the counter 2 to advance the process of selecting the decoders by one decoder.

Abstract: A mixer circuit which is improved in distortion characteristic and band characteristic and can assure impedance matching with another circuit at a preceding stage readily and besides can prevent abnormal oscillations. The mixer circuit comprises a differential amplifier constituted from a pair of transistors grounded at the emitters thereof, and a double balanced mixer constituted from first and second pairs of transistors. A first impedance element is interposed between a junction between the emitters of the first pair of transistors of the double balanced mixer and the collector of one of the pair of transistors of the differential amplifier, and a second impedance element is interposed between a junction between the emitters of the second pair of transistors of the double balanced mixer and the collector of the other of the pair of transistors of the differential amplifier.

Abstract: A push button switch comprises a housing having an opening at the top and provided with a fixed contact member at the inner bottom, a stem supported to be vertically movable in and with respect to the housing, and an elastic member being capable of buckling and having one end attached to near a lower end of the stem and the other end attached to near the inner bottom of the housing, the elastic member being positioned in the housing to extend diagonally and urging the stem upward by its own resilient force. A high degree of reliability is ensured with the simple structure and a good click feeling is provided.

Abstract: There is provided a gain control circuit which comprises a circuit unit composed of a transistor Q.sub.11, a first gain control unit 12 including transistors Q.sub.12 and Q.sub.13 having emitters connected to each other and a choke coil L.sub.1 having an end connected to the collector of the transistor Q.sub.12 and the other end connected to the collector of the transistor Q.sub.13 for checking a high frequency signal current, and a second gain control unit 15 including transistors Q.sub.14 and Q.sub.15 having emitters connected to each other. Then, the transistor Q.sub.11 of the circuit unit is connected to the node where the emitters of the first gain control unit 12 are connected to each other and the node where the transistor Q.sub.13 of the first gain control unit 12 is connected to the choke coil L.sub.1 is connected to the node where the emitters of the second gain control unit 15 are connected to each other, and a high frequency is input to the base of the transistor Q.sub.11 of the circuit unit.

Abstract: The present invention relates to a thin x-y direction input device for moving a cursor on a screen in any direction. The x-y direction input device includes a casing having an opening and an operating member that is resting on the casing and capable of sliding. A cursor appearing on a display moves in any direction according to movement of the operating member. The operating member includes a flat plate sliding over a receiver surface lying in the casing, and a projection that projects from the flat plate and engages with first and second moving members having either detecting elements or elements to be detected, and the projection is exposed from the aperture. This enables smooth movement of the moving members. The operating member is provided with elastic tongues pushing back the first and second moving members from their ends of movement to the center.

Abstract: A calking structure wherein a calked member is calked firmly in a fixed member and a jig intended for obtaining the structure are disclosed. Cutting edges 2a, 2b of calking jigs 15, 16 are provided with slant faces 3a or 3b, 3c for subjecting calking pieces 21a, 21b to a torsional deformation with reference to a cut face A from depression, and the calking pieces 21a, 21b are locked to a fixed member 8 as deformed torsionally to a calked member 20.

Abstract: An amplifying apparatus provided by the present invention comprises a direct-coupled inverting amplifier and an alternating-current feedback circuit as well as a direct-current feedback circuit connected between input and output terminals of the direct-coupled inverting amplifier, wherein the direct-current feedback circuit comprises an operating-point extracting circuit for extracting a direct-current component and a bias-voltage generator having a direct-current signal gain larger than an alternating-current signal gain thereof and a direct-current operating bias voltage of the direct-coupled inverting amplifier is set by using a signal output by the bias-voltage generator. Such a configuration enables the amplifying apparatus to offer high-speed operations, a large dynamic range and a highly stable direct-current operating point regardless of the type of a signal input therein and allows an alternating-current signal gain to be set independently of the stability of the direct-current operating point.

Abstract: A recording method for an opto-magnetic disk apparatus by which pit edge recording of an opto-magnetic disk can be achieved and the track recording density is enhanced. The recording method is applied to an opto-magnetic disk apparatus wherein a light emitting element is driven with a pulse signal to form pits on a record face of a disk and a magnetic field is applied to such pit portions to modulate the pits. According to the method, the amount of information to be included in a pit modulated is made equal to or greater than 2 bits, and the period of the pulse signal to drive the light emitting element is changed in response to a bit or bits for a fraction to be recorded.

Abstract: In a sliding contact having a base made of an elastic material and a precious metal contact connected to the base, the base extends along a sliding face, and the precious metal contact is connected to the base in the almost vertical direction with respect to the contact position of the precious metal contact and the sliding face by beam welding.

Abstract: The invention relates to a clock spring connector which permits a reduction in the length of a flexible cable and simplification of the alignment mechanism.The clock spring connector has a first housing, and a second housing, a flexible cable wound in opposite directions through a U-shaped reversed portion in the ring-like space defined by the outer cylindrical portion of the first housing and the inner cylindrical portion of the second housing, and a moving member rotating while following the reversed portion. A third mark as an indicator is provided on a spacer which partially forms the moving member so that the third mark can be visually observed from the outside when the second housing is at the neutral position.

Abstract: A method and apparatus for supplying a uniform strip of bread dough is provided in which a dough mass flows downward from a dough hopper, a dough portion of the flowing dough mass is laterally spread on an outlet conveyor having a weighing table, dough portions are cut and divided from the dough mass into dough pieces when a predetermined degree of the spread of the dough mass is detected by a dough-detecting device, simultaneously the weight of the dough piece is measured, the dough piece is then transferred from the outlet conveyor to a supply conveyor, the divided dough pieces are arranged on the supply conveyor at intervals proportionate to the weights of the dough pieces, and they are stretched to make a strip of bread dough. It has a uniform width and thickness, and is uniform in weight throughout the entire part of the strip of bread dough. Therefore, dough products cut and formed from this strip of bread dough are of a high quality.

Abstract: A light separating element designed to have parallel first and second external surfaces, a first polarizing film disposed on the first external surface and arranged to reflect a first portion of a first component in a first direction and transmit a second portion of the first component and all of a second component in a second direction. Further, a second polarizing film can be disposed on a second external surface which reflects a first portion of the second component in a third direction and transmits a second portion of the first and second components in a fourth direction. Further, the first portion of the second component is reflected by the second polarizing film to strike the first polarizing film. The first polarizing film transmitting a first portion of the second component in a fifth direction or a reflecting surface disposed on the second external surface and arranged to reflect a second portion of a first component and all of a second component in a third direction toward the polarizing film.

Abstract: A clock spring for use with a steering device of an automobile, including a fixed member, a movable member rotatably mounted on the fixed member with a cable accommodating portion defined therebetween, and a cable accommodated in the cable accommodating portion for effecting electrical connection between the fixed member and the movable member. One end of the cable is fixed to the fixed member and led out of the fixed member, while the other end of the cable is fixed to the movable member and led out of the movable member. One portion of the cable is wrapped in one direction on either of the fixed member or the movable member, while the other portion is wrapped in the opposite direction reverse to the one direction on the other of the fixed member and the movable member, whereby an inverted portion of the cable is formed between the one portion and the other portion.

Abstract: A control ball assembly for a coordinate input device including a pair of orthogonal rotatable shafts contacting a control ball and which rotate in response to a rotation of the control ball. A spring having two arms, each arm connected to one end of one of the pair of shafts, presses the rotatable shafts inward against the control ball with an equal biasing force. A support member is provided to support the spring.

Abstract: A disk player with a disk select function comprises a playback unit consisted of a rotation mechanism for rotating a disk, a clamper for placing the disk on the rotation mechanism, and a pickup positioned to face the disk; a magazine having an opening positioned to direct toward the playback unit and accommodating a plurality of disks therein; and a disk feeding mechanism positioned in front of the opening of the magazine to feed a desired disk in the magazine toward the playback unit. In this disk player, an ejection mechanism for protruding the desired disk through the opening is provided in the magazine, a driven part for operating the ejection mechanism is provided on the front lateral side of the magazine in the direction of insertion thereof, and a drive mechanism engaging the driven part to drive the ejection mechanism is provided on a body of the disk player.

Abstract: The present invention provides a magnetic disk drive for recording data on and reproducing recorded data from magnetic disk having a servocontrol data zone in which servocontrol data is stored. The magnetic disk drive includes a magnetic head shifting device for shifting a magnetic head unit radially with respect to the magnetic disk, and a voice coil motor for driving the magnetic head shifting device. A control means controls the voice coil motor so as to decelerate the magnetic head shifting device to a stop when a failure to read servocontrol data occurs a predetermined number of times while the magnetic head shifting device is being driven during a target track seek operation. Thus, a collision of the magnetic head unit against the magnetic disk can be prevented.