Abstract: A CB radio system includes a wireless communication network. A citizens band radio is provided and the citizens band radio is positioned within a vehicle. The citizens band radio has a plurality of standing wave ratios programmed therein. An antenna is provided and the antenna is coupled to an outer surface of the vehicle and the antenna is electrically coupled to the citizens band radio. Moreover, the antenna is tunable to operate on a selected one of the standing wave ratios. The antenna is placed in selective electrical communication with the wireless communication network thereby increasing an effective range of the citizens band radio. A microphone is positioned within the vehicle thereby facilitating the microphone to detect spoken commands. The microphone is electrically coupled to the citizens band radio such that the microphone controls operational parameters of the citizens band radio.

Abstract: A temperature sensor for measuring the temperature of a surface of the heat exchanger of a motor vehicle air conditioning system. The sensor includes a sensor housing constructed for assembly in an opening of a heat exchanger housing and having a sensor head constructed for thermal contact with a heat exchanger surface. The sensor head is configured to have thermal contact only with the outer ends of cooling ribs of the heat exchanger or only with a thermally conductive plate which connects cooling ribs.

Abstract: A method for improving multi-channel radio communication. Firstly, providing a motor vehicle having a multi-channel radio. Secondly, mounting a visual display device to the motor vehicle in such a manner that the visual display device is visible from a distance to persons observing the motor vehicle. Thirdly, displaying a number representing a channel frequency to which the multi-channel radio is tuned on the visual display device.

Abstract: A pager with a passive display, for example, a liquid crystal display, also has a sensor for sensing ambient light levels. The display is automatically illuminated when the ambient light level falls below a given threshold and the sensor is then either altered to detect a higher light level or disabled for a given time period so that the illumination does not falsely affect the sensor.

Abstract: A pager comprising a light sensor which is responsive to light externally illuminating the pager to generate a first signal when the sensed light is below a predetermined luminance value. The first signal is supplied to a coincidence gate which provides a coincidence output when it detects the coincidence of the first signal with a second signal that is generated when there is a message on a display. The coincidence output feeds a light source to illuminate the display to make it visible under poor lighting conditions.

Abstract: A display panel for a CB transceiver is disclosed which identifies to others the channel being used by the operator and other information such as the operator's code name or that the operator needs emergency assistance. The display panel is adapted to be installed in a motor vehicle on the front dashboard, on the rear window area, or the side windows. In the preferred embodiment, the display panel includes an electronic digital channel indicator connected to the channel selector of the CB transceiver. The numbers displayed on the channel indicator change with the channel selected on the CB transceiver. A translucent overlay is mounted within the display panel in front of the digital channel indicator, and the overlay is personalized with information about the operator. A light behind the overlay makes the information visible to others. Two flashing lights are also mounted within the display panel.

Abstract: A pushbutton tuner display apparatus for an entertainment device is disclosed in which a plurality of pushbuttons are used to tune a radio apparatus in the entertainment device in one mode of operation, while in another mode of operation the entertainment device operates as a cartridge tape player in which the pushbuttons are utilized as display devices which indicate which tape track is being monitored by the cartridge tape player. Additionally, one pushbutton is utilized as a display to indicate the reception of a stereo radio signal. Each pushbutton comprises a clear plastic light pipe surrounded by an opaque plastic part having openings at the front and rear. An associated light bulb mounted inside the frame of the entertainment device is utilized to provide light to each rear portion of each light pipe, and each light pipe has a prismatic portion which transmits received light to a front portion of the light pipe where an illuminated operative state display indication is produced.

Abstract: In a tuning apparatus for a broadcast receiver having a dial scale calibrated to represent broadcast frequencies over a predetermined frequency band, and along which an indicator is movable for indicating the broadcast frequency to which the tuning apparatus is actually tuned; a sensor is movable with the indicator, at least one presetting element is movable along the dial scale for indicating a respective preset broadcast frequency and each such element coacts with the sensor whenever the broadcast frequency to which the tuning apparatus is tuned corresponds to the respective preset broadcast frequency, a control signal generator produces a control signal in response to the coaction of the sensor with each of the presetting elements, and a control circuit is responsive to the control signal to control a function of the tuning apparatus, such as, a muting and/or automatic frequency control operation of the tuning Johnson 310 239

Abstract: A compact dial indicator arrangement is provided for a UHF tuner of the type having a continuously variable main tuning shaft and a station selector shaft provided with detent means for establishing a separate detent position for each of the 70 television stations in the UHF band. An elongated strip of material bearing numbers corresponding to each one of the 70 UHF television stations is moved past a viewing position at which the selected channel numbers may be viewed by means interconnected with the detented selector shaft so that the number on the elongated strip corresponding to each stop position of the continuously variable main tuning shaft is automatically viewable at the viewing position in response to rotation of the selector shaft to each detented position thereof.