Sectional Or Interconnectable (e.g., Modules) Patents (Class 455/349)
  • Patent number: 5444868
    Abstract: The mobile radio system includes a plurality of power amplifier modules having discrete power levels, a common transceiver module and a plurality of control head modules having different control functions. Selected ones of the power amplifiers and control heads are electrically and mechanically coupled to opposite ends of the transceiver. In one form, the control head may be remotely mounted and electrically coupled to the selected power amplifier. A common bracket is used to mount a radio having selected ones of the power amplifiers coupled to the transceiver with a selected control head. In a further embodiment, a receptacle having electrical fittings at its rear end and an opening at its opposite end receives the radio through its open end with the electrical connections being automatically coupled to one another upon final seating of the radio in the receptacle. The radio includes a handle which forms a latch for releasably securing the radio in the receptacle.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: August 22, 1995
    Assignee: Ericsson GE Mobile Communications Inc.
    Inventors: Gary R. Reynolds, Richard Culbertson, Ralph R. Sherman, Jr.
  • Patent number: 5438698
    Abstract: A wearable audio reception device includes an elongated flexible enclosure removably attachable to an article of clothing and the radio in turn being removably attachable to the flexible enclosure.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: August 1, 1995
    Assignee: Sweat Accessories, Inc.
    Inventors: Steven C. Burton, Richard A. Perilli, Kenneth T. Perilli
  • Patent number: 5404584
    Abstract: An apparatus and method of modular electronic printed circuit board design for a radio communication transceiver in which the electronic circuitry forming a transmit/receive circuit board of the device is modularized in such a manner as to facilitate independent stand-alone functional testing of modules both on and off the board.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: April 4, 1995
    Assignee: Ericsson GE Mobile Communications Inc.
    Inventors: Donald W. Bobbitt, David C. Bing
  • Patent number: 5369796
    Abstract: A floating sound system for use in a swimming pool or the like has a radio, tape player, power supply, and controls. The power supply unit nests within a toroidal float, being attached thereto by straps. The radio and associated components are located in a domed housing resting upon the float. The sound system is built to disassemble into these three subassemblies. The resultant sound system floats stably in water, and, due to speaker cones arranged parallel to the water surface, projects sound very effectively.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: November 29, 1994
    Inventor: Gregory E. Kung
  • Patent number: 5369797
    Abstract: A radio alarm clock with removable cassette player/recorder is powered by a rechargeable battery which is recharged when the removable cassette player/recorder is installed on the radio alarm clock. The radio and the cassette player/recorder may be played independent of the clock. Five wakeup modes are disclosed: tone only, radio only, cassette player/recorder only, tone then cassette player/recorder and radio then cassette player/recorder. The cassette player/recorder may be removed from the radio alarm clock so that it may be used as an electronic memo pad; the messages dictated to it during the course of a day may be replayed the following morning when the alarm clock activates the cassette player/recorder. When installed on the radio alarm clock the cassette player/recorder plays back through the larger radio alarm clock amplifier and speaker.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: November 29, 1994
    Inventor: James G. Tyree
  • Patent number: 5363089
    Abstract: A hinged device (100) comprises a first body portion (105) having a first end (115), wherein the first end (115) is substantially cylindrical and curved about a first axis, and wherein the first end (115) has a first plurality of cogs formed thereon substantially parallel to the first axis. The hinged device (100) further comprises a second body portion (110) having a second end (120), wherein the second end (120) is substantially cylindrical and curved about a second axis, and wherein the second end (120) has a second plurality of cogs formed thereon substantially parallel to the second axis. Securing means (125) movably secures the first body portion (105) to the second body portion (110) at the first end (115) and the second end (120), respectively, such that the first plurality of cogs meshes with the second plurality of cogs when the first body portion (105) is secured to the second body portion (110).
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: November 8, 1994
    Assignee: Motorola, Inc.
    Inventor: Michael P. Goldenberg
  • Patent number: 5349698
    Abstract: In a radio communication apparatus which is capable of using a selected terminal unit selected from a plurality of terminal units, a logic part detects the kind of the selected terminal unit to produce a type signal representative of the selected kind. Responsive to the type signal, the logic part controls an adjusting part which produces an adjusted signal. As a result, the adjusted signal has a selected level which is selected for the selected terminal unit in accordance with the type signal. Responsive to the adjusted signal, the selected terminal unit generates an audible signal having a volume which is adjusted in accordance with the selected level. Additionally, the volume can be manually adjusted by an operator.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: September 20, 1994
    Assignee: NEC Corporation
    Inventor: Tsuguo Maru
  • Patent number: 5342707
    Abstract: A latching device (110) for use in a latch system for a housing comprising first and second housing sections (102, 104), comprises a battery compartment (107) and a latch member (112) adjacent to the battery compartment. The latch member (112) is for coupling to the second housing section (104) to latch the first and second housing sections (102, 104) when the latch member (112) is in a first position and to unlatch the first and second housing sections (102, 104) when the latch member (112) is in a second position. The latching device (110) further comprises a movable extender member (114) coupled between the first housing section (102) and the latch member (112) for extending the latch member (112) into the second housing section (104) and for allowing the latch member (112) to move between the first and second positions, the latch member (112) being prevented from moving into the second position when a battery (106) is in the battery compartment (107).
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: August 30, 1994
    Assignee: Motorola, Inc.
    Inventor: Dwight D. Brooks
  • Patent number: 5341434
    Abstract: A car stereo has a detachable grille attached to a body of the car stereo. A display is provided on the car stereo body for display operating modes of the car stereo. A cover is provided on the car stereo body for covering the display when the grille is detached. The cover is moved to a retracted position so as to expose the display when the grille is attached to the body.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: August 23, 1994
    Assignee: Pioneer Electronic Corporation
    Inventor: Masashi Kawamoto
  • Patent number: 5307511
    Abstract: An anti-fall structure for preventing the battery cover of a radio communication apparatus or similar apparatus from accidentally coming off the casing of the apparatus. A thumb piece is fitted on the casing in such a manner as to be slidable into and out of locking engagement with a notch formed in the battery cover in a direction substantially perpendicular to a direction in which the battery cover is slidable. The thumb piece is held in a locking position due to the engagement of a recess formed in the inner periphery of the casing and a flexible locking member affixed to the thumb piece. The thumb piece does not unlock the battery cover unless operated intentionally by a predetermined force and, therefore, positively retains it. The locking member is long enough to surely mate with the inner periphery of the casing. This, coupled with the fact that the inner periphery of the casing catches lugs provided on the thumb piece in the locked position, the thumb piece itself is prevented from coming off.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: April 26, 1994
    Assignee: NEC Corporation
    Inventor: Makoto Takahashi
  • Patent number: 5276916
    Abstract: A radio or speaker-microphone unit includes a housing having first and second portions. A speaker is disposed in one of the portions and a microphone in the other of the portions. The portions are movable between first and second relative positions, with one of the positions providing a handset configuration and the other providing a speaker-microphone configuration. A switch senses the relative position of the housing portions and adjusts the gain of an audio amplifier.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: January 4, 1994
    Assignee: Motorola, Inc.
    Inventors: Joy N. Pawlish, Suzanne Y. Cohodes
  • Patent number: 5265272
    Abstract: A loop antenna (10) for use in a wrist band radio (50) comprises a series of interconnected links (2 and 4) forming a wristband, a flexible conductor (30) retained between the interconnected links forming the loop antenna, and a connector at the end portions of the series of links for electronically coupling the flexible conductor to the radio.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: November 23, 1993
    Assignee: Motorola, Inc.
    Inventor: Robert Kurcbart
  • Patent number: 5265264
    Abstract: A radio or speaker-microphone unit (10) includes a radio housing (11) and a first (17") or second (17') battery housing. A speaker (33) is disposed in the radio housing (11) and two microphones (34" and 34') are disposed respectively, in the radio housing (11) and in the second battery housing (17'). The battery housings (17' and 17") are selectively attachable with the radio housing (11) to provide a selection between first and second relative positions, with one of the positions providing a handset configuration and the other providing a speaker-microphone configuration. A switch (37) senses which of the battery housings (17', 17") is attached and disables (36) the microphone (34") in the radio housing (11) if the second battery housing (17') is attached.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: November 23, 1993
    Assignee: Motorola, Inc.
    Inventors: John C. Dzung, Scott H. Richards
  • Patent number: 5251329
    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.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: October 5, 1993
    Assignee: Sony Corporation
    Inventors: Kotaro Takagi, Kunio Sato, Kazunori Imazaki
  • Patent number: 5241695
    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).
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: August 31, 1993
    Assignee: Motorola, Inc.
    Inventors: Todd W. Roshitsh, David I. Blatt, James W. Maginness
  • Patent number: 5222007
    Abstract: An automatic ejection system includes a loading device. The automatic ejection system has a grille detector for detecting the removing of a grille from a car stereo and for producing a detachment signal, a tape detector for detecting existence of a tape in the car stereo and for producing a tape signal, and ejection controller responsive to the detachment signal and the tape signal for operating the loading device so as to automatically eject the tape from the car stereo.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: June 22, 1993
    Assignee: Pioneer Electronic Corporation
    Inventors: Takashi Suzuki, Shigeru Munetomo, Terumasa Shimizu
  • Patent number: 5204985
    Abstract: An electronic device (100) includes electrical circuits (208) and a power source (101) having at least one terminal for providing power to the electrical circuits (208). A housing has first and second members (302,304) constructed to cooperatively interconnect to substantially enclose the electrical circuits (208), the housing further being adapted to receive and mechanically couple with the power source (101). An electrical contact strip (220) electrically couples the electrical circuits (208) and the power source (101), and fastens the first and second members (302,304) of the housing together. The electrical contact strip (220) includes a spring indentation (314) mechanically coupled to the at least one terminal of the power source (101) to provide mechanical securing force between the power source (101) and the housing. The electrical contact strip (220) also includes a first opening. The first and second members (302,304) of the housing include second and third openings.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: April 20, 1993
    Assignee: Motorola, Inc.
    Inventor: Jeffrey S. King
  • Patent number: 5203022
    Abstract: A portable radio assembly comprises a radio housing (12), a battery housing (14), and a sliding clamp (40) for interconnecting the housings (12 and 14).
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: April 13, 1993
    Assignee: Motorola, Inc.
    Inventors: Steven J. Finch, Faris S. Habbaba, Jeffrey P. Marchuk, Steven M. Joss
  • Patent number: 5202585
    Abstract: An electronic device has an operating section having a plurality of input keys. The operating section is detachably connected to a body of the device in such a manner that the contacts of the operating section are electrically connected to the contacts of the body when the operating section is connected to the body. The body includes a connection detecting section for detecting the connection of the operating section to the body to output a connection detection signal; and a control section for making the connection of the contacts of the body and the contacts of the operating section effective a predetermined period of time after provision of the connection detection signal.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: April 13, 1993
    Assignee: Pioneer Electronic Corporation
    Inventors: Yoshio Aoyagi, Mayumi Satoh
  • Patent number: 5185804
    Abstract: A knob for operating a fader as an electronic device of a car stereo is rotatably and axially slidably mounted on a grille detachably attached to a car stereo body. A wall of the car stereo body facing the grille when attached thereto, has an opening through which the knob passes. A manually rotated operating shaft of the fader is disposed inside the body of the car stereo behind the opening. When the knob is pushed into the body through the opening, the knob is connected with the operating shaft of the fader.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: February 9, 1993
    Assignee: Pioneer Electronic Corporation
    Inventor: Masaaki Watanabe
  • Patent number: 5175873
    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.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: December 29, 1992
    Assignee: Motorola, Inc.
    Inventors: Michael P. Goldenberg, Tek-Choy Kok, Martin D. McCluskie, Scott L. Dill
  • Patent number: 5146618
    Abstract: An apparatus including a main housing, with a first and second detachable speaker mounted thereto, each speaker includes a positive and common connection for selective association with an automotive speaker wiring harness. The apparatus includes a cavity for reception of a vehicular radio therewithin and selectively removable forward panels to receive an additional booster amplifier in an upper section and storage, wherein the storage includes an aligned series of "T" shaped recesses to selectively receive audio cassette members or compact disk plates selectively within each "T" shaped slot.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: September 8, 1992
    Inventor: Jeffrey W. Wenner
  • Patent number: 5111360
    Abstract: An onboard package for fixing a portable telephone unit within the passenger compartment of an automobile including a lower tray which is fixed within the passanger compartment, and an upper cover engaged to the lower tray so that the upper cover is operable and closable. Guides for fixing the portable telephone unit are disposed in the lower tray. A slide section for supporting an antenna cable connector is provided in the lower tray. This connector is located at a position facing a connector corresponding thereto on the telephone unit. Further, the slide section is movable in a direction in which the connector is inserted and removed. The upper cover is secured to the slide section with arms engaged with the slide section. The arms are moved in association with the opening and closing operations of the upper cover so as to move the slide section in the above-mentioned direction, whereby the connector is inserted and removed.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: May 5, 1992
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Teruo Baba
  • Patent number: 5109539
    Abstract: A portable radio device in which a radio telephone device body and a receiver unit are separately constructed and connected together by a pair of adjustable supporting rods. As a result, the distance between the radio telephone device body and the receiver unit can be adjusted according to whether the device is being used as a telephone unit or a pager unit. While being used as a telephone, the distance between a receiver and a microphone can be easily adjusted to the distance between an ear and a mouth of a user. When the device is used as a paper, it can be miniaturized so as to be conveniently carried.
    Type: Grant
    Filed: November 1, 1989
    Date of Patent: April 28, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toshiya Inubushi, Atsushi Musha
  • Patent number: 5109540
    Abstract: A portable two-way radio includes a radio portion and a battery removably attached to the radio portion. The radio portion includes an opening that is accessible when the battery is removed. An electronic card is received by the radio portion through the opening. When reassembled, the battery retains the electronic card in the radio portion.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: April 28, 1992
    Assignee: Motorola, Inc.
    Inventors: John C. Dzung, Timothy A. Monahan-Mitchell, Emilio J. Quiroga, Craig F. Siddoway, Randall P. Chambers
  • Patent number: 5077832
    Abstract: A digitally controller radio transceiver includes a housing including a front cover provided with a display port; a main controller board mounted within the housing; an optional display board attached to an interior surface of the front cover adjacent said display port, said display board electrically connected to said main controller board by a pressure fit connection; a removable display escutcheon plate mounted on an exterior surface of the cover, overlying the display port; and fastening means extending through the cover and connecting the display board to the display escutcheon plate. Removal or omission of the display board is automatically sensed by the radio transceiver's internal microprocessor which operates accordingly. In one embodiment the transceiver program store may be loaded via an external connector to customize the microprocessor instruction code for the presence or absence of a display.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: December 31, 1991
    Assignee: Ericsson GE Mobile Communications Inc.
    Inventors: Craig F. Szczutkowski, Marc A. Dissosway, Clyde R. Butler, Jr., Gerald M. Cooper
  • Patent number: 5073978
    Abstract: Box-shaped frame (10) to carry removeable car radio sets (50) in motor vehicles, in which the position of the rear end (30), on which there are electric connections (41), is adjustable to adapt the frame to car radios (50) of different lengths, by means of a series (22), (23) of notches (24), (25) placed on the windows (21), (22) in the opposite sides of said frame (10), which notches (24) (25) can be penetrated by strip-like projections (36), (37), fixed to the edges of the short elastic sides (32) (33) of the above rear end (30).
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: December 17, 1991
    Inventor: Giovanni Mastrippolito
  • Patent number: 5038400
    Abstract: According to the invention, a carry holder for carrying a portable two-way radio provides the interconnections between the portable radio and a accessory device. The carry holder provides the interconnection between the portable radio's universal connector and the accessory device's accessory connector. When the radio is placed in the carry holder, the radio's universal connector engages the carry holder, which is coupled to the accessory device. Therefore, a quick engagement and disengagement mechanism for the radio and the accessory device is provided.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: August 6, 1991
    Assignee: Motorola, Inc.
    Inventors: Frederick A. Baracat, Stanley A. Yeager, Jr.
  • Patent number: 5020136
    Abstract: A combination battery pack and low profile antenna arrangement for use in conjunction with a two-way portable transceiver includes an enclosure containing an electrical battery with positive and negative electrodes. A pair of terminals are attached to the outer surface of the enclosure and are coupled to the positive and negative electrodes. A low profile antenna structure is disposed within the enclosure and includes a feed point for coupling RF energy to and from the antenna structure. An antenna coupling arrangement is electrically coupled to the feed point for coupling RF energy into and out of the enclosure.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: May 28, 1991
    Assignee: Motorola, Inc.
    Inventors: Stelios J. Patsiokas, Oscar M. Garay, Quirino Balzano
  • Patent number: 4940414
    Abstract: A separable car audio set for antitheft includes a control box, a face plate, a frame and a contact block assembly between the face plate and the frame. The face plate has a concave well in and from which the control box is easily received and separated. When it is desired top protect the audio set from theft during parking the control box will be easily removed from the concave well of the face plate without separating the whole audio set from a vehicle.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: July 10, 1990
    Assignee: Namsung Electronics Corp.
    Inventor: Jong D. Lee
  • Patent number: 4933988
    Abstract: Disclosed is equipment for wireless transmitting and receiving audio signals in a confined area which comprises a transmitter receiver and battery pack. The receiver including a bracket with which the receiver may be detachably secured to a surface such as a table or chair arm and whereby access to the fasteners with which the bracket means is secured to the surface is restricted. The receiver and battery pack have complementary dovetail means by which the battery pack and the receiver may be operatively secured together in electrical communication, the battery pack being detachable by the use of the receiver. Preferably, the bracket and receiver have a latchable dovetail connection means whereby the receiver can be hooked to the bracket and removed only by authorized people using an appropriate key.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: June 12, 1990
    Inventor: Gerard J. Thibault
  • Patent number: 4896360
    Abstract: A public address amplifier comprises a housing which contains an output amplifier connected to loudspeakers. A microphone containing a microphone transducer and an input amplifier is connected to the input of the output amplifier and to connectors on the housing by a cable. A second such public address amplifier can be connected to the first by connecting its cable to one of the connectors so as to provide a public address system of increased power.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: January 23, 1990
    Inventor: Robert S. Knight
  • Patent number: 4887311
    Abstract: A FM mobile radio is disclosed which is capable of future functional expansion due to a unique microprocessor hardware/software control system. The radio includes a control microprocessor which is capable of performing all the basic radio control functions. In addition, options are added via a plug-on board that includes an option microprocessor which interfaces with the control microprocessor over a data bus and with the radio's audio circuits through audio processing circuitry. The software of the system allows control to be passed to the option board. The radio operates in a standard control mode and an option control mode. In the standard mode, in which no option board is present, the control processor performs all basic radio control functions. In the option mode, where the option control microprocessor is present, the main control processor typically receives commands from the option board.
    Type: Grant
    Filed: April 17, 1987
    Date of Patent: December 12, 1989
    Assignee: General Electric Company
    Inventors: Terry N. Garner, Robert P. Dixon
  • Patent number: 4866787
    Abstract: A satellite TV system including a plurality of channel strips each including a tuner and a modulator matched to each other. The tuner selects the particular satellite signal and the modulator selects the particular channel on the TV. Both tuner and modulator circuits include a divide-by-two component which permits use of lower cost electronic components while producing high quality TV pictures or other outputs. Each channel strip is in the form of a plug-in module. A control box houses all of the plug-in channel strips and the other electronics.
    Type: Grant
    Filed: April 28, 1987
    Date of Patent: September 12, 1989
    Assignee: Lykke Olesen
    Inventor: Lykke Olesen
  • Patent number: 4854045
    Abstract: The modular pocketknife system is assembled from a number of modules. Each of these modules consists at least of a tool element (12, 13) and of at least one connecting element (8, 11). The modules can be ranged side by side in any desired number and sequence, the connecting elements being provided with an electronic contact element (1) for data transmission, a locking element (2, 4, 5), and a sealing element, so that the modules are fashioned splash-proofly mechanically and electronically interconnectible and lockable and detachable from one another again.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: August 8, 1989
    Assignee: Wenger SA
    Inventor: Michael Schaub
  • Patent number: 4856088
    Abstract: An electronic device having a display is disclosed which comprises contacts for electrically coupling the display to the circuitry of the electronic device, and a mounting arrangement for removable attachment of the display to the electronic device, such that the display may be removed from the electronic device to be read. The electronic device may be a radio transceiver, and the display may be adapted to display a paging message from a paging receiver associated therewith.
    Type: Grant
    Filed: January 14, 1988
    Date of Patent: August 8, 1989
    Assignee: Motorola, Inc.
    Inventors: Gary A. Oliwa, Marilyn S. Burger
  • Patent number: 4797949
    Abstract: A telecommunications system including a mobile unit is protected from operator-induced disruption by disabling the operator-adjustable controls of the mobile unit and fixing the operating parameters of the mobile unit. A supervisory apparatus incorporating supervisory circuit elements replacing the adjustable circuit elements associated with the operator-adjustable controls may be plug-connected between the main chassis and the control head of the mobile unit.
    Type: Grant
    Filed: May 1, 1986
    Date of Patent: January 10, 1989
    Assignee: G.M. Holding Corp.
    Inventor: George M. Stites, III
  • Patent number: 4777657
    Abstract: A programmable signal receiver for use in a computer system. The signal receiver is located inside the computer's chassis and has an interface directly coupled to the computer's bus for receiving instruction signals which specify one or more channels to be selected from a broadband input signal. Each selected channel of the broadband signal is amplified using amplifying circuitry of sufficiently low impedance that the RF radiation produced does not interfere with the operation of the computer system. In one embodiment the signal receiver's input port is d.c. coupled to the computer's d.c. power supply so that the computer's d.c. power supply can be used to provide power to apparatus external to said computer system--such as a satellite dish's feed horn.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: October 11, 1988
    Assignee: ISS Engineering, Inc.
    Inventor: Norman J. Gillaspie
  • Patent number: 4761823
    Abstract: A method and apparatus for adapting a portable radio transceiver (10) for configuration in electronic communication with a main console of a fixed or mobile communication system. The apparatus employs a bracket (36) which serves to extend, by cables 52, 54, various functional input terminals at the console to function contacts (44, 46) at the bracket (36). The transceiver (10) includes apparatus (34) for mating the transceiver (10) to the bracket (36). The bracket (36) carries a track (50) for accepting the track rider mating apparatus (34) of the transceiver (10).
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: August 2, 1988
    Assignee: E. F. Johnson Company
    Inventor: Duane T. Fier
  • Patent number: 4742569
    Abstract: In a tuning circuit for AM receiver, tuning coils, oscillation coils and capacitance elements of an antenna tuning circuit, a radio frequency amplifier circuit, and a local oscillator circuit are accommodated in discrete shield casings for high frequency coils; and the discrete shield casings are disposed in a row and united with each other in the form of blocks, thereby eliminating the necessity to effect tracking adjustment.
    Type: Grant
    Filed: August 6, 1986
    Date of Patent: May 3, 1988
    Assignees: Toko, Inc., Matsushita Electrical Industrial Co., Ltd.
    Inventors: Hajime Yokoyama, Noboru Takada, Yusuke Okamoto, Makoto Torakawa, Takashi Ikegame
  • Patent number: 4718110
    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.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: January 5, 1988
    Assignee: General Electric Company
    Inventor: Henry A. Schaefer
  • Patent number: 4709201
    Abstract: An improved arrangement for powering a two-way portable radio or the like comprises rechargable battery cells and sets of power input and output contacts interconnected to each other and the battery cells in such a way that the output contacts may be electrically connected to the battery cells for powering the radio, or to the input contacts for receiving power directly from a battery charger for dead battery operation while simultaneously recharging the battery cells, all battery pack contacts being electrically isolated from the battery cells in the latter mode of operation.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: November 24, 1987
    Assignee: General Electric Company
    Inventors: Henry A. Schaefer, Terry N. Garner
  • Patent number: 4704740
    Abstract: A liquid crystal display module with self contained display decoder circuitry is attached to a radio frame with a minimum of electrical interconnections. Module assembly and attachment are both accomplished without the use of tools. Attaching the module to the frame interlocks the module to prevent accidental disassembly and places a preload force on the electrical interconnections to insure good electrical continuity. Ambient light reflection provides primary display illumination while lamps, controlled by an integral switch, provide secondary illumination.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: November 3, 1987
    Assignee: Motorola, Inc.
    Inventors: John M. McKee, Roberto Kurcbart
  • Patent number: 4700191
    Abstract: A radar warning receiver for detecting and analyzing radar signals comprises a plurality of RF heads each tuned to a predetermined frequency band and connected to an antenna covering a preselected sector of reception of radar signals. Each of the heads includes a frequency converter converting the received signals to a common frequency base-band and producing an output signal in the base-band corresponding to the signal received by its antenna.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: October 13, 1987
    Inventor: Dan Manor
  • Patent number: 4700230
    Abstract: A modular video switching system for switching a video signal from one of many video cameras to a video monitor. The system includes one or more individual modules each containing a limited set of input channels. The modules can be cascaded with each other to permit scanning of the video signals from all modules on to a single video monitor. Also provision is made for modular camera controls, requiring only a single control for all cameras, using modular circuitry to rout the control signals to the appropriate camera.
    Type: Grant
    Filed: August 29, 1984
    Date of Patent: October 13, 1987
    Assignee: Vicon Industries, Inc.
    Inventors: Yacov A. Pshtissky, Donald N. Horn, John Skidmore
  • Patent number: 4694484
    Abstract: A fixed site station for cellular systems is disclosed. A plurality of radio transceivers are removably disposed in apertures of the common equipment housing and are provided unique parameters of operation by the system controller dependent upon the aperture in which the transceiver is located and the antenna configuration of the cell being served.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: September 15, 1987
    Assignee: Motorola, Inc.
    Inventors: Frederick G. Atkinson, Anthony Kobrinetz, Barry J. Menich
  • Patent number: 4691378
    Abstract: A tuner for a television receiver is designed for minimal size and to have a series of external terminals placed along one side thereof. An electronic tuning section including several local oscillator circuits is located within a common shielding case and a phase locked loop channel selection circuit is also located within the case in an isolated compartment thereof. The channel selection circuit and the local oscillator circuits all lie along a straight line parallel to and adjacent one end of the case.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: September 1, 1987
    Assignee: Sony Corporation
    Inventors: Kenichiro Kumamoto, Akira Sato, Koichi Ohya, Koichi Matsuda
  • Patent number: 4688262
    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.
    Type: Grant
    Filed: March 26, 1986
    Date of Patent: August 18, 1987
    Assignee: General Electric Company
    Inventors: Henry A. Schaefer, Terry N. Garner
  • Patent number: 4680787
    Abstract: A portable radiotelephone is disclosed in which an associated logic unit communicates via a data bus with an internal keypad and display and a detachable external keypad and display. Capability is provided for detecting the presence of the external keypad on the data bus and, in response to the detection, the information which would normally be communicated between the logic unit and the internal keypad and display is diverted to the external keypad and display. When the external keypad is detached from the data bus, communications between the logic unit and the internal keypad and display is reestablished.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: July 14, 1987
    Assignee: Motorola, Inc.
    Inventor: Patrick J. Marry
  • Patent number: 4661998
    Abstract: A compact or miniaturized well-shielded double superheterodyne tuner is provided, wherein an input circuit portion, a first mixing portion, a first intermediate frequency bandpass filter, a second mixing portion and an output circuit portion are mounted in separated casings. The first mixing portion and the second mixing portion are provided on printed boards and each mounted on a bottom plate of the casing. The casings containing the first and second mixing portion are arranged in a manner such that grounded surfaces of the printed boards contained in the casings are arranged face to face. The casing containing the bandpass filter is contacted adjacently to a common face of the face to face casings. Each of the casings containing the input and output circuit portions is located adjacently to each of faces common to the face to face casings and the filter containing casing. Some structual improvements are also provided for simplifying the manufacture and adjustment of the tuner.
    Type: Grant
    Filed: September 19, 1984
    Date of Patent: April 28, 1987
    Assignee: Matsushita Electric Industrial Co. Ltd.
    Inventors: Sadahiko Yamashita, Makoto Hasegawa, Motoi Ohba, Koh Kikuchi, Tsutomu Shishido