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| Number | Title | Issue Date |
| 4174501 | Command signal generator for an automatic channel selection device in a radio which is mobile relative to transmitter stations This device which can be used in a phase or frequency modulation receiver, is connected to the output of the frequency discriminator of the receiver and comprises means for forming a logic signal which indicates the presence or absence of noise, a gate wh... | 11/13/1979 |
| 4151468 | Microphone holder attachment and switch control therefor A microphone holder frame is mechanically supported in a raised position to enable the driver of a motor vehicle to transmit messages through a Citizens Band transceiver without use of the hands. The frame is supported on an adjustable bracket structure e... | 04/24/1979 |
| 4143320 | Roof or floor CB radio mount A combination loudspeaker enclosure and mounting apparatus particularly useful for radio equipment of the "citizens band" type and adapted for use in an automobile, or the like, the invention provides a speaker enclosure onto one exterior surface of which... | 03/06/1979 |
| 4135158 | Universal automotive electronic radio Selected radio circuits are fabricated on modules which plug into a "mother" board located in the radio chassis. The circuitry includes a plurality of RF front ends (including at least one AM and one FM front end), each tunable over a selected radio band ... | 01/16/1979 |
| 4134070 | Modular radio A modular radio, adapted for different mounting orientations and thereby suitable for use on a variety of water and air crafts. One embodiment pertaining to marine radios includes a head which is removable from the main body and a control panel which is d... | 01/09/1979 |
| 4112376 | Radio channel display and method of display A digital readout device for use in a motor vehicle having a manually adjustable channel-indicating control mounted in accessible relationship to the vehicle operator. A digital display device is remotely positioned from the control interiorally of the ve... | 09/05/1978 |
| 4100372 | Audio console system for home and vehicle An audio console system for use in a vehicle and a home and which comprises an audio console unit removably securable at the roof of a vehicle in replacement of the dome light and which is also usable in the home in combination with other components to fo... | 07/11/1978 |
| 4100504 | Band rejection filter having integrated impedance inverter-tune cavity configuration For eliminating an unwanted leaking local oscillator signal from the output of a double-balanced mixer circuit in a microwave frequency up-converter, a band rejection filter formed of series connected impedance inverter elements and a plurality of tuned c... | 07/11/1978 |
| 4095229 | Triband vehicle antenna An antenna for simultaneous connection to a citizen's band transceiver, an AM receiver and a FM receiver, particularly suitable for use on a vehicle such as an automobile. The antenna proper is a center-loaded upstanding rod which, in the preferred form, ... | 06/13/1978 |
| 4085369 | Vehicle radio mounting device A rectangular U-shaped mounting bracket is affixed to the bottom of the dashboard of a vehicle and has bores formed through its spaced parallel arms. A radio is swivelly mounted in the bracket via pins extending through the bores of the arms. A rectangula... | 04/18/1978 |
| 4081740 | Vehicle alternator system with noise filter An electric power source apparatus for vehicles comprises a dynamo and a voltage regulator which includes mechanical relays, the switching of which causes high frequency noises, which in turn adversely affect a radio receiver set mounted on the vehicle. T... | 03/28/1978 |
| 4081751 | Plug-in radio set, and support therefor A plug-in car radio set, and support therefor comprising a support provided with means for effecting the outer connections, namely antenna, power supply, loudspeaker(s), and the inner connections associated to the radio part proper, including a casing, an... | 03/28/1978 |
| 4068175 | Detachable cover member for car radios and the like A cover for car radios and the like, having manually detachable components. A mounting frame formed by side walls is removably detachable at its rearward edge to the chassis of the radio; a front face plate is removably connected to the forward edge of th... | 01/10/1978 |
| 4067654 | Apparatus for variably positioning and securing car radios and the like Apparatus for variably positioning and securing car radio units and the like, including a mounting shaft securable on a front chassis plate in a number of different positions spaced horizontally, vertically and diagonally from each other. A bracket member... | 01/10/1978 |
| 4065719 | Diagnostic connection means for vehicle mounted radio In a vehicle mounted radio having a case enclosing antenna trimmer adjustment means with a trimmer adjustment screw accessible through openings in the case and front escutcheon, an insulated tube extends from the trimmer adjustment screw through the case ... | 12/27/1977 |
| 4063175 | Amplifier for receive mode operation An amplifier circuit to be interposed between an antenna and a utilization unit such as a radio, scanner, citizens band transceiver or the like. The amplifier circuit includes a current divider for dividing incoming signals into first and second parallel ... | 12/13/1977 |
| 4037177 | Radio-frequency coupler A radio-frequency coupler comprising a first terminal for interconnection with a conventional automobile receiving antenna used for receiving rf transmissions within a first radio-frequency band, a second terminal for interconnection with a receiver opera... | 07/19/1977 |
| 4032204 | Adjustable mounting arrangement for electronic apparatus An electronic apparatus as for use in a vehicle is adjustably mounted on a rigid support member by means of rigid inserts which are releasably retained by the walls of each portion of the resilient plastic housing. When the housing portions are mated, the... | 06/28/1977 |
| 4027249 | Vehicle radio control unit This is a self-contained control unit for use in an automobile or other vehicle which has a citizens band radio receiver and an additional audio entertainment appliance, such as an AM radio, FM radio, AM/FM radio, or an audio magnetic tape player. The con... | 05/31/1977 |
| 4011513 | Tuning device for a radio receiver A tuning device for a radio receiver is disclosed wherein the manual knob which permits tuning and permits viewing of a radio frequency scale can be pivoted to face the operator directly. The manual knob is rotatably linked to a shaft of a tuning element,... | 03/08/1977 |
| 4009375 | Monitoring system for vehicles A vehicle monitoring system is disclosed in which a central control station is provided for the vehicles, for example buses, in the system. Each vehicle is provided with a transit universal microprocessor unit, including a modulator-demodulator, and one o... | 02/22/1977 |
| 4005367 | Mobile transceiver housing assembly A housing for a mobile transceiver has integrally molded aligning and locking features to allow assembly without tools. As the metal support frame and attached printed circuit board enter the housing, short legs on the lower edge of the frame provide supp... | 01/25/1977 |
| 3965426 | Frequency modulated signal pre-amplifier with amplitude modulated signal bypass For use with radio receivers adapted to receive both frequency and amplitude modulated signals, a frequency modulated signal preamplifier adapted to be serially connected between the antenna input lead and antenna connector of such a radio, the pre-amplif... | 06/22/1976 |
| 3950701 | Rear view mirror for a two-wheeled vehicle A rear view mirror for a two-wheeled vehicle with a radio receiver set contained in the mirror case housing.... | 04/13/1976 |
| 3944924 | Citizens band transceiver assembly for mounting on a motorcycle A citizens band transceiver assembly to be mounted on a motorcycle, or other similar vehicle, is provided which includes a bracket having a continuous tubular member configured to enclose a rectangular area, the bracket further having a base on which the ... | 03/16/1976 |
| 3939423 | Automobile active receiving antenna An automobile active receiving broadcast band antenna having a bandpass filter input circuit capacitor formed by a metal member insulated from the automobile body and arranged in close vicinity to the windshield and by an automobile body structural elemen... | 02/17/1976 |
| 3934252 | Closed loop tunnel diode receiver for operation with a base band semiconductor transmitter A vehicle safety apparatus includes a base band pulse transmitter-receiver system for the detection of an impending collision immediately prior to the contact of the vehicle with another object for the actuation of restraining or other safety devices to p... | 01/20/1976 |
