Abstract: A radio telephone apparatus for transmitting and receiving information signals as electrical waves includes a main body section towards one end of which a speaker unit is enclosed. A battery casing accommodating a battery which is adapted for supplying power to the main body section is detachably mounted on the other end of the main body section to reduce the size and the thickness of the apparatus. A ringer device is enclosed within the battery casing so that the acoustic sound emitted by the ringer is prevented from reaching the user's ear which is in the vicinity of the speaker unit. The microphone for the radiotelephone apparatus in also enclosed within the battery casing.

Abstract: The molded key switch shield assembly (100) includes a molded member (104) and a key switch overlay (102). The molded member (104) includes a shield metallization pattern (136) which substantially covers major portions of both the first (138) and second major surfaces (140) of the molded member (104). The molded member also includes a metallization pattern (124) having a plurality of key switch locations (118) which can be shorted by conductive locations (112) on key switch overlay (102).

Abstract: A resilient housing actuated multi-level housing switch comprises a compression sensitive circuit which is actuated by compressing a resilient housing. The compression sensitive circuit comprises a compression sensing device which produces an analog signal, an A to D converter, and a microprocessor. The microprocessor is programmed with algorithms to control the power levels of communication equipment and volume levels based on signals produced by compressing the compression sensing device.

Abstract: An operating unit for the manual control of a plurality of functions of different apparatuses, especially for hospitals or hotels, has a modular design and comprises a box-like main module and at least one slat-like submodule. At least one device, the function of which is controlled by manual key operation, is arranged in or at the main module. Accessory devices can be arranged within the submodules. The unit is characterized by comfortable handling and great versatility.

Abstract: The present invention provides an adaptable key holder for a remote control transmitter. This includes a remote control transmitter (101) with buttons (102) for activating functions typically located on one surface, and a detachable ring (200) encompassing the remote control transmitter (101) and having a feature to captivate keys (105). This captivating feature (105) feature can be oriented either adjacent or opposite the most used transmitter button.

Abstract: An emergency position indicating radio beacon ("EPIRB") includes a watertight housing with an ON-OFF switch on the outside of the housing which does not require holes through the housing wall. A floatation collar on the housing maintains the EPIRB in an upright position in the water and provides a storage cavity for a lanyard. Conductive grids on the interior of the housing either shield the EPIRB electronics from antenna radiation and form the lower half of the antenna, or couple the antenna to the water which acts as a ground plane, depending on whether the EPIRB is floating in the water or is surrounded by air.

Abstract: A transmission system for transmission of audio voltage signals has a first transmission portion which includes a cable (16) coupled to a first face of a substantially flat cover member (22). The cable (16) and cover member (22) are integrally coupled to form one entity. Recessed from a surface of a second face of the cover member are socket contacts (24, 26) which receive audio signals from the cable (16). A second transmission portion includes a printed circuit board (32) fixedly secured within an insulating casing (40) through an access opening. The printed circuit board has a transmission circuit coupled to an antenna (38). Connection of the first and second transmission portions is facilitated by connection plugs (34, 36) of the second transmission portion making contact with the socket contacts (24, 26) of the first transmission portion.

Abstract: A remote controller bag is arranged for receiving a remote control unit therewith, wherein the bag is formed of a transparent and flexible material to permit operation and visibility of the controller button members. The organization optionally includes pneumatic chambers coextensive with each side wall of the organization to define a cavity therebetween, wherein the cavity further includes a floor member, wherein the floor member includes a plurality of tubular containers arranged parallel relative to one another defining pneumatic columns therebetween for accommodating impact to the controller unit.

Abstract: A selective call receiver includes first and second housing portions forming a chamber therebetween which houses the electronic circuitry for receiving messages, a display for displaying the messages, and an annunciator for alerting a user that a message has been received. The first housing portion has an opening therein through which keys of an elastomeric keypad are accessible to the user. The keypad also includes a base portion for forming a seal between the first and second housing portions and a rim which extends into an additional opening in the first housing portion proximate the periphery thereof for sealingly receiving a lens therein.

Abstract: A radio transceiver comprising a housing including a front cover, a plurality of interchangeable control panels adapted for selective alternative attachment to the front cover, and a plurality of interchangeable keypads adapted for selective alternative attachment to the front cover in underlying relationship with a respective one of the control panels, wherein each control panel is configured for use with a similarly configured one of the keypads. Each of the control panels comprises a relatively thin planar member having front and rear faces and defined by upper, lower and a pair of side edges, and includes a projection or locking bar extending along and away from the upper edge, and fastening means located adjacent the lower edge. A standardized electronic circuit board is provided within the unit, some or all of the switches included on the circuit being accessible, depending on the particular keypad and control panel employed.

Abstract: Disclosed is a booster apparatus wherein a detected signal which an input power detecting means outputs is subjected to a fixed processing and made to be a reference voltage for level-setting, and a transmitting level setting means controls the gain of an amplifier in such a manner that a detected signal which a transmitting power detecting means outputs and the reference voltage are balanced with each other.

Abstract: A radio signal transmitter for use in an automotive keyless entry system, is resistant to damage even when subject bending stresses. The radio code transmitter has a thin housing. A substrate for a transmitter circuit is housed within the thin internal space of the housing. A plurality of circuit components making up the transmitter circuit are mounted on the substrate. The circuit components are arranged in such a manner that relatively large components are near the edges of the substrate and relatively small components are nearer the center of the substrate.

Abstract: A visual display monitor of an information system of a motor vehicle is connected not only with the usual engine and vehicle instrumentation, but also with a variety of electrical equipments installed in the motor vehicle which the driver may want to activate and control from time to time. The picture screen of the monitor, preferably of the LCD, electro-luminescence or plasma type, is subdivided into a report region at the top and a region for interactive information such as instructions menus and operation results. All the functions that would otherwise be performed by individual buttons, knobs and switches of the various equipments installed in the vehicle may be simply performed by a series of easily designated choices. One input device has a ball control for directing a cursor on the screen of the monitor, a menu button and an entry button, and may be located on the steering wheel.

Abstract: A radiotelephone apparatus employed as a so-called portable telephone or a car telephone includes an outer casing, a chassis base plate provided in the outer casing and mounting an electronic circuit section containing above all a heated element or elements, and a fan containing section containing a heat sink and a fan device connected in a heat conductive relation with the chassis base plate. The electronic circuit section and the fan containing section within the outer casing are isolated from each other by an air current interrupting device for air cooling heated electronic components while preventing dust and dirt in the air from flowing into portions in the casing other than the fan containing section. An air intake window is provided in the vicinity of mechanically operating portion of the apparatus for self cleaning dust and dirt sucked by the air flow through the normal telephone operation.

Abstract: Different digital radio transceiver front panel escutcheon plate assemblies are provided for different optional transceiver configurations. A digital signal controller which is part of the main transceiver circuitry is capable of performing any of various basic and option functions under control of program control instructions stored in an associated non-volatile memory. Subsets of those features are selectively disabled by irreversibly modifying the transceiver unit from the outside of the unit (e.g., by cutting certain PC board pathways through holes provided in the transceiver unit front panel). The controller enables (executes) portions of the program control instructions stored in its associated non-volatile memory and disables (does not execute) other portions of the stored program control instructions in response to detection of continuity/discontinuity over those certain pathways.

Abstract: A radio communication apparatus has a modulating portion for modulating a carrier with a signal to be transmitting so as to produce a transmission signal. A signal transmitting portion causes the transmissible signal to be subjected to power amplification. The transmissible signal is transmitted after having been subjected to power amplification. A cooling device is provided for cooling by force a heat source contained in the signal transmitting portion in response to a condition detector for detecting a temperature condition or an operating condition of the signal transmitting portion. An operation control unit is operative to cause the cooling device to be in operation when a particular temperature condition in which temperature of the signal transmitting portion has exceeded a predetermined value or a particular operating condition in which the signal transmitting portion has been in a predetermined state is detected by the condition dectector.

Abstract: A molding method for manufacture of a resin molded part having one or more flexibly movable, pushbutton-shaped thick projections formed integrally with a base through the intermediary of thin wall portions continued from the peripheral edges of the projections, wherein a thermoplastic elastomer is used as a molding material, and wherein the thick projections, the thin wall portions, and the base are integrally molded by supplying a mass of the molding material into a mold through a gate provided adjacent the center of a portion corresponding to each of the projections. The method requires no vulcanization and permits efficient production. Furthermore, it allows well balanced flow of the molding material and eliminates the possibility of burrs and sink marks being produced.

Abstract: A channel selecting panel holder rotatably stores an operating section comprising a remote control transmitter inside the cabinet of a television set, video recorder and the like. The transmitter serves as an operating apparatus for the television set. The operating apparatus is stored in a storage section provided in the cabinet.

Abstract: A transmitter includes case, a thin non-conductive pad with an electrically conductive coating applied to selective areas of the pad, one or more electrically conductive actuator buttons on the pad to activate the transmitter, a thin insulator containing a plurality of separate areas which can easily be selectively punched out leaving open holes, and a printed circuit board containing the electronic circuits of the transmitter. Because all of the internal components can be manufactured as extremely thin elements, the transmitter can be made extremely small and thin.

Abstract: In a converter console for converting a portable radio to mobile operation, a sleeve for receiving the portable radio and improved mounting apparatus which positions the sleeve so the portable can be easily inserted and smoothly moves the sleeve into a loaded position in which the portable is connected for control by the console and for receiving power from the vehicle. The mounting apparatus holds the various contacts firmly together to prevent contact chatter. Also included are locking apparatus which prevent relative movement between the portable/sleeve and the housing to eliminate contact chatter under extreme vibration and reduce theft and improper use.

Abstract: A housing for miniature electronic equipment is disclosed. A mechanical fastening system is utilized in holding front and rear portions of the housing together without conventional fasteners. The front housing portion has cantiliever beam spring catches which penetrate slots in the rear housing and captivate the rear housing and internal components. The spring catches are fixed in position by supporting rails of a detachable battery.

Abstract: A microphone is provided in which two circuit boards are held in spaced parallel position by each being connected at one end to a supporting member and by each resting at the other end in a pair of stabilizing grooves located within the microphone head. A battery holding assembly has attached at one end the supporting member, and at the other end an antenna mounting surface onto which a coiled antenna is placed. A battery holding compartment is located between the supporting member and the antenna so that a battery held in the compartment acts as an addition to the antenna itself. A power and battery level indicator flashes on and off to warn that the charge of the battery is reaching a predetermined low point. The electronic circuitry for the indicator is also provided.

Abstract: An audio communications system for an office chair provides a user with private listening of RF transmitted audio messages in an exposed environment such as an office area, without the use of headphones. An audio module, which mounts to the backrest of an office chair, includes an RF receiver and a shaped, acoustic horn loudspeaker which directs sound upwardly, behind the user's head, while minimizing lateral dispersion of the sound. In another aspect of the invention, the audio communications system includes a transceiver for two-way communication, such as telephone, and an armrest mounted microphone and keypad.

Abstract: A channel selecting panel holder rotatably stores an operating section comprising a remote control transmitter inside the cabinet of a television set, video recorder and the like. The transmitter serves as an operating apparatus for the teleivison set. The operating apparatus is stored in a storage section provided in the cabinet.

Abstract: An apparatus for housing a plurality of remote control units wherein the units are consolidated at a common location and wherein the units are protected from damage which may be occasioned upon them. Each housing is defined by a wall having a window formed therein and a drawer for mounting a unit therewithin whereby an infrared emitter of a remote control unit is disposed so that it will project an infrared signal through the window. Further, the housings include hook and notch arrangements for mating the plurality of housings together whereby each transmission path from a remote control through the corresponding window to electronic equipment is rendered unobstructed.

Abstract: A display case for receiving a transmitter module and retaining the module in place is used in a security system which detects and monitors fire, burglary, emergencies, appliance failure and the like. Transmitter modules, which are placed at each of the sensors, transmit information to a central monitor. The display case for receiving the transmitter module is designed to present the module in open view so that the user can readily discern that the transmitter is in place. The display case cover includes provision to expose the transmitter while engaging the transmitter body to hold it in place in the display case.

Abstract: In a computer system comprising a computer having a keyboard, and a display device connected to the computer, an improved position indicator means comprising a mouse having means responsive to movement thereof over a support surface for generating electrical signals indicating the positioning of the mouse, power source means carried by the mouse, circuit means powered by said power source means for generating and transmitting radio signals corresponding to said electrical signal, and processing means associated with said computer for receiving said radio signal and converting said radio signal into a display on said display device positioned corresponding to the positioning of said mouse.

Abstract: An improved portable two-way radio comprises a systems module and a removably connected, shielded RF module. Split universal device connector apparatus is provided having an RF connector portion associated entirely with the shielded RF module and a control connector portion associated entirely with the control module, the RF and control connector portions being located physically proximate to each other so that a single multi-pronged universal device connector can be electrically and mechanically connected to both the RF connector circuitry through the control systems module.

Abstract: A channel selecting panel holder rotatably stores an operating section comprising a remote control transmitter inside the cabinet of a television set, video recorder and the like. The transmitter serves as an operating apparatus for the television set. The operating apparatus is stored in a storage section provided in the cabinet.

Abstract: An externally connectable control unit for a portable radio includes an array of contacts matching a similar array of contacts on a portable radio. At lest one control switch is electrically connected with such connector contacts and disposed internally of a switch housing structure. The internal switch is located in association with a recess formed in the housing and a removable plug is friction-fitted within the recess so as to establish a first electrical condition of the control switch--but which is also capable of being manually pulled out of the recess to establish a second electrical condition of the control switch. The meaning to be associated with the switch is determined by a programming device in the control unit which interfaces with the portable radio circuits and is utilized to perform predetermined radio functions. One or more additional switches may also be located on the switch housing (e.g.

Abstract: This invention is a case designed to contain a miniature battery of a particular design in connection with a radio transmitter wherein the case provides for quick access through a friction fitting cover and specially designed battery holding elements which permit removal and replacement of the special battery without the need of any tools or special training. The holding portion for the battery consists of two especially designed spring loaded case elements, one of which has a partial shelf to retain the battery.

Abstract: A unique housing (104 and 600) of a portable radio transceiver (100) is described that takes advantage of the heat sinking, electrical shielding and structural characteristics of a battery. The unique electronic circuitry housing (104 and 600) includes a battery as an integral structural element thereof. In one illustrated housing (104), a stick battery (210) is attached to the side of a transmitter printed circuit panel (213). A logic printed circuit panel (212) and a receiver printed circuit panel (214) are positioned above and below the transmitter printed circuit panel (213), respectively, and are held together by interlocking side rails (206,207). In a second illustrated housing (600), a flat battery (602) is attached to the sides of a first U-shaped printed circuit panel (604). A second U-shaped printed circuit panel (606) is positioned between the battery and the first panel (604). Heat dissipated by the electrical components on the second panel (606) is conducted away by the flat battery (602).

Abstract: A locking device for garage door actuator signal transmission devices having a housing in which a signal transmission means is mounted, and into the circuit of which is installed normally open switches, with means for simultaneously manually operated separate actuators closing the said normally open switches actuating the door and for automatically opening said normally open switches upon release of said closing means, breaking the circuit through said main switch.

Abstract: A control surface is positioned on the top horizontal surface of the case of a personal radio. A flexible printed circuit connects the control surface to the internal electronic circuits of the personal radio. A printed circuit board is connected to the flexible printed circuit by a connector soldered to both the flexible printed circuit and the printed circuit board. Some of a plurality of electrical pathways disposed on the printed circuit board are grouped into conductive pairs, while other pathways connect the conductive pairs to the connector. A keypad formed of a sheet of resilient material encases a surface of the printed circuit board. Molded into the keypad are resilient hollow keys, the hollow of each of which contains a conductive pad. When a key of the keypad is depressed, the conductive pad associated with that key makes contact with predetermined ones of the conductive pairs of the printed circuit board, completing an electrical circuit.

Abstract: A FM wireless headphone transmitter which uses a novel technique of varying the transmitted frequency. Instead of the traditional methods of using a variably meshing multi-plate capacitor, the invention uses a printed circuit inductance with a tuning plate attached permanently to the inside of the case so that frequencies are changes by changing cases. An alternative embodiment uses interchangeable tuning plates attached to the inside of the case by hook and loop pile type fastener material. The printed circuit inductance also serves as a transmitting antenna.

Abstract: An emergency transmitter provided with separate devices for the transmission of a first frequency and a second frequency. The transmitter is contained within a floatable housing. The transmission devices are connected via a switch to a battery. The transmission devices are comprised of a common quartz or crystal oscillator connected with frequency multipliers which are connected to drive stages and to high frequency final stages. The latter are connected to a transmission antenna which extends from the housing. Also provided is a signal generator for modulating the transmitted frequencies. A fixed-cycle control device is associated with the first and second transmission devices and alternately sets the two transmission devices into operation.

Abstract: This invention has as its object an infrared emitter. The case of a remote control device has a cover (14) doubly hinged around an axis (X--X) around which it can swivel to carry out the push button function that makes possible the activation of an infrared emitter in the case. The case is also hinged around a movable second axis of articulation (Y--Y) around which it is made to rotate when it is desired to replace the direct current power source (18) which is attached to the cover (14). The locking and unlocking means for the opening of the case by swivelling of the cover (14) around the second axis of articulation (Y--Y) consists of the hinge pin (50) of the hinge (42) that defines the first axis of articulation (X--X) of the cover.

Abstract: A portable advertising sign is positioned in proximity to a street and includes a message board. A low power transmitter is physically secured to the sign and generates a modulated RF output signal at a predetermined frequency within the broadcast band. An antenna colocated with the sign is coupled to the transmitter and radiates the transmitter output signal. A cassette tape player is positioned in a secure area physically spaced apart from the sign by a substantial distance and includes a colocated power supply for supplying a DC voltage. A cable conveys the audio output signal from the tape player and the DC voltage from the power supply to the transmitter. The sign message board displays the operating frequency of the transmitter to vehicles passing by the sign.

Abstract: A housing for an elongate electronic circuit board, including longitudinally extending support rails and opposing pins within the housing to support the margins of a portion of the electronic circuit board which is not deformation-sensitive. A recess is provided on the exterior of the housing to hold electrical power cells therein, thus separating them from the circuit board. An opening to the interior portion of the housing provides access to a portion of the circuit board.

Abstract: The present invention provides a small portable radio transmitter unit which can be worn on the wrist or suspended from a neck chain to provide immediate access in the event of an emergency condition and without interfering with the normal day-to-day activities of the wearer. The unit is contained within a watertight housing having a resilient membrane depressible by finger pressure to actuate a button switch within the housing for actuation of the transmitter. The housing is vented to the atmosphere to provide equalization of internal and ambient pressure in a manner providing isolation from water or other liquid entry to thereby maintain a watertight enclosure.

Abstract: A radiosonde for measuring atmospheric parameters, such as pressure, temperature, and humidity, includes a microprocessor interfaced with an analog-to-digital converter, which, in turn, receives sequential input signals representing the sensed atmospheric parameters, and converts those signals to corresponding digital data. This digital data is processed in the microprocessor, and applied as a digital data stream to an RF transmitter from where the data is transmitted to a remote ground processing station. A flap member on the radiosonde housing, which is movable between an open and a closed position in response to air flow, cooperates with a switch to provide a signal to the microprocessor indicating the launch and descent of the radiosonde. A preset input to the microprocessor is provided to automatically terminate transmission of meteorological data when the radiosonde has reached a predetermined altitude.

Abstract: A housing for electrical components and equipment sent aloft with a weather balloon to measure atmospheric parameters comprises a light-weight polystyrene case that serves as a shipping container and flight package. The housing also includes an air duct and a humidity sensor in the duct. Means in the duct minimize the reflection of sunlight onto the sensor to maintain at ambient temperature the air which flows over a humidity sensor.

Abstract: A remote unit for use in a wireless extension telephone system having a self-contained dipole antenna. Utilizing the unique construction of the telephone instrument housing one element of the dipole is included in a planar element that functions normally to direct sound to a self-contained microphone and the other element of the antenna is a static shield used to protect components on printed circuit board included within the extension unit.

Abstract: A portable transmitter provided with a base for mounting a subassembly with a circuit board and a battery adjacent to each other and within a removable cover. The subassembly having adjustable frequency determining elements and the base having a flap integral therewith extending over and covering the frequency determining elements.

Abstract: A free standing transmitting microphone comprising a hollow holder for enclosing a transmitter and a microphone on a base. A cover of conductive material above the holder functions as an antenna for the transmitter. An acoustic pathway between the holder and the cover directs sounds to the microphone.

Abstract: The present invention relates to a radio signals transmitter.The transmitter according to the invention comprises a pulse train generator including a quartz oscillator, generating a high frequency signal which is provided to a transistor 7 controlled by the charge and the discharge of a condensor 5 acting on the voltage of its base. A train of A.C. frequency pulses is thereby produced.The generator is protected by a housing which is worn around the neck of the user by means of a chain forming a quarter wavelength antenna.The present invention is used as a portable distress signals transmitter for isolated persons, such as skiers, mountaineers or other people in difficulty.

Abstract: Emergency information communicating device is disclosed having a wireless transmission circuit, a switch means and a battery which are provided in a waterproof case body, a permanent magnet inserted in a slot defined in the case body for providing a magnetic field to actuate the switch means and an electrical conducting member acting as an antenna. By disengaging the permanent magnet from the case body, emergency information can be radiated from the antenna.

Abstract: A wireless microphone which does not require a separate antenna. A wireless microphone in the form of an elongate housing of nonelectrical conducting material with a microphone unit mounted in one end of the housing and a battery and control switch mounted in the other end of the housing. A first electrical circuit including an audio amplifier and a second electrical circuit including a radio frequency amplifier are mounted in the housing physically separated from each other and interconnected by radio frequency chokes. The output of the radio frequency amplifier is connected to circuit ground of the audio amplifier, with the microphone unit and first circuit serving as one radiator of a dipole and with the battery and second circuit serving as the other radiator of the dipole.

Abstract: A container for an alarm transmitter used in combination with components of a transmitter circuitry which includes voltage control for providing a gated voltage and controlled by a timing circuit. The components also include an audio multivibrator which is electrically coupled to the voltage control in order to receive the gated voltage, a microfork audio filter which is electrically coupled to the audio multivibrator and a modulator which is electrically coupled to the audio multivibrator. The components further include a radio frequency oscillator whose frequency is modulated by the modulator and which has an antenna electrically coupled to its output terminal. The container includes a tubular member which is adapted to be installed into a hole in a wall adjacent to a door or a window and an elongated, rectangular member adapted to be inserted into the tubular member and also adapted to have the components of the transmitter circuitry placed thereon.

Abstract: There is disclosed a miniature hand-held radio-frequency transmitter. An operating frequency is determined by a lumped-circuit oscillator which feeds an antenna etched on the periphery of the circuit board. The antenna is tuned to a frequency which is slightly above the second harmonic of the operating frequency, it being the second harmonic which is radiated. By slightly mis-tuning the antenna, the effects of an enveloping hand are minimized. The clasping of the transmitter by a human hand results in the absorption of some of the radiated power, but hand-capacitance effects also shift the center frequency of the antenna characteristic toward the second harmonic of the operating frequency, thus increasing the radiated power. In this way the signaling range under free-space conditions is the same as that under operating conditions. The oscillator circuit can thus be adjusted for maximum power output under free-space conditions within the guidelines of F.C.C.