Patents Represented by Attorney, Agent or Law Firm Daniel W. Juffernbruch
  • Patent number: 5640690
    Abstract: A hinge assembly for hingedly connecting a cover and a housing theretogether, such as a keypad cover and a housing of a portable radiotelephone. A generally tubular hinge arm is formed at an end portion of the cover, and two hinge pins, each having identical cam surfaces formed upon edge surfaces thereof are inserted into the hinge arm and positioned such that the cam surfaces of the respective hinge pins extend beyond opposing sides of the hinge arm such that the hinge pins are caused to rotate in unison with rotation of the cover. A spring member is tandemly-positioned between the two hinge pins to exert spring forces thereupon. Two cam followers are affixed to the housing in a manner such that the cam surfaces of the hinge pins abut against the cam followers.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: June 17, 1997
    Assignee: Motorola, Inc.
    Inventor: Paul John Kudrna
  • Patent number: 5633484
    Abstract: An application device (401) is connectable with a donor device (541) such as a portable memory card (560) or widely accessible central database (550). The donor device (541) stores and provides preferences to the application device (401). The donor device (541) contains a reference preference memory capable of storing preferences for a particular user. A controller (450) accesses the donor device to obtain preferences that pertain to the particular user under certain conditions and stores preferences obtained from the donor device in the session preference memory (490) of the application device (401) for use in a session by the particular user.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: May 27, 1997
    Assignee: Motorola, Inc.
    Inventors: William F. Zancho, David B. Spitulnik
  • Patent number: 5630159
    Abstract: An application device (401) is connectable with a donor device (541) such as a portable memory card (560) or widely accessible central database (550). The donor device (541) stores and provides preferences to the application device (401). The donor device (541) contains a reference preference memory capable of storing preferences for a particular user. A controller (450) accesses the donor device, when the donor device is available, to obtain preferences that pertain to the particular user under certain conditions and stores preferences obtained from the donor device in the session preference memory (490) of the application device (401) for use in a session by the particular user. When the donor device is unavailable, alternate preference establishment procedures are used.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: May 13, 1997
    Assignee: Motorola, Inc.
    Inventor: William F. Zancho
  • Patent number: 5630210
    Abstract: An apparatus, and associated method, for determining signal transmission quality levels of a discretely-encoded information signal received by a receiver. The signal strength of the received signal is calculated, and the levels of interference introduced upon the information signal is determined. The value of the signal strength is weighted by the amount of interference introduced upon the information signal. The resultant weighted signal forms the signal transmission quality level. The value of the signal transmission quality level is displayed to provide a user with a quantitative indication of the signal transmission quality level of the signal received by the receiver.
    Type: Grant
    Filed: August 7, 1995
    Date of Patent: May 13, 1997
    Assignee: Motorola, Inc.
    Inventors: Patrick J. Marry, David C. Schuster, Adam F. Gould
  • Patent number: 5628057
    Abstract: A transformation network is provided capable of interfacing between an unbalanced port (110) and a plurality of differently phased balanced ports (120, 130). A balun (165) has a choke (140) and connects the unbalanced port (110) to a balanced pair of nodes. An additional node (145) is provided on the balun. First and second unbalanced phase shift transmission lines (150, 155) have a common ground conductor connected to the additional node (145) of the balun (165). A phase-shifted balanced port (130) is thus provided by center conductors of these first and second unbalanced phase shift transmission lines (150, 155) when the other ends of these transmission lines are coupled to the balanced nodes of the balun (165) and the common ground conductor of these transmission lines is connected to the additional node (145) of the balun.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: May 6, 1997
    Assignee: Motorola, Inc.
    Inventors: James P. Phillips, Eric L. Krenz
  • Patent number: 5621766
    Abstract: A burst detector (140) detects the occurrence of a burst in a signal receiver. A filter (220) having an impulse response characteristic of an expected burst filters a received signal. A subtractor (230) subtracts a filtered version of the received signal from a delayed and filtered version of the received signal to provide a detection signal. A burst edge detector (250) detects a leading edge of the burst based on the detection signal.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: April 15, 1997
    Assignee: Motorola, Inc.
    Inventors: Bradley B. Bakke, John W. Arens
  • Patent number: 5606332
    Abstract: A dual function antenna structure transceives in first and second modes. A first feed (120) feeds a primary antenna element (110) for operation in the first mode. A second feed (240) connects to the first feed (120). An upper choke (150) and a metal layer (160) are tuned to a wavelength of the radio frequency energy to be transceived in the second mode. The primary antenna element (110) and the metal layer (160) thus realize a secondary antenna element for operation in the second mode. In a portable radio, dual function operation is thus possible by a compact structure by the first and second feeds (120, 140).
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: February 25, 1997
    Assignee: Motorola, Inc.
    Inventors: William H. Darden, IV, Kevin M. Thill, Christopher N. Kurby
  • Patent number: 5600341
    Abstract: A dual function antenna structure transceives in first and second modes. A first feed (120) feeds a primary antenna element (110) for operation in the first mode. A second feed (140) couples via a coupling element (130) to a portion of the first feed (120) or the primary antenna element (110) to realize a secondary antenna element. In a portable radio, dual function operation is thus possible by a compact structure by the first and second feeds (120, 140).
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: February 4, 1997
    Assignee: Motorola, Inc.
    Inventors: Kevin M. Thill, Christopher N. Kurby
  • Patent number: 5583520
    Abstract: Two coils (10, 20) couple energy to and from an antenna element (30). The lengths of the hot arm coil (10) and the ground arm coil (20) are different to cause a matched input for coupling to the resulting antenna structure. In a portable radio the two coils (10) and (20) efficiently couple to the antenna element (30) without inducing currents on the housing of the portable radio.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: December 10, 1996
    Assignee: Motorola, Inc.
    Inventor: Kevin M. Thill
  • Patent number: 5559522
    Abstract: A radiotelephone, used in a satellite radiotelephone system, has an antenna (12) with a hemispherical gain pattern (14). Since a satellite (18) can be anywhere in the sky the antenna gain pattern (14) needs to be aligned with the hemisphere above the user. This is accomplished with an antenna positioning apparatus, comprising the antenna (12) having a wedge shaped mating surface (42) affixed to an attaching surface (36) by a pin (38) and socket (44). The attaching surface (36) slopes downward from a plane (24) defined by a front face (26) of the radiotelephone (10). The combination of the wedge shaped mating surface (42) and the downward sloping attaching surface (36) positions the antenna (12) at an angle .phi. from the plane (24) when the antenna is in the active position. As a result the antenna (12) is vertically oriented when held by the user during normal use.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: September 24, 1996
    Assignee: Motorola, Inc.
    Inventor: Martin V. Seitz
  • Patent number: 5559806
    Abstract: An earth station transceiver (210) is provided for communicating with at least one satellite (110, 120) in orbit. The earth station transceiver (210) has an antenna with an array of antenna elements (220, 230) and steering circuitry (240) for steering an antenna pattern created by the array of antenna elements. A position of a beam (310-330) from a satellite can be represented by a beam number. The antenna pattern can be determined without taking signal quality measurements when the beam is at an extreme elevation angle as represented by the beam number. Signal quality measurements can alternatively be made during a time slot or frame to choose an antenna pattern instead of choosing an antenna pattern based on satellite beam number when the beam is not at an extreme elevation angle. Signal quality measurements using the same antenna pattern are made to perform an intra-site handoff. Signal quality measurements using all antenna patterns are made to perform an intersite handoff.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: September 24, 1996
    Assignee: Motorola, Inc.
    Inventors: Christopher N. Kurby, John W. Arens, James P. Phillips
  • Patent number: 5551627
    Abstract: An electronic assembly (100) includes multiple solder connections (101) coupling faying surfaces (202, 204) of two substrates (106, 108). A solder connection (201) is fabricated by reflow heating of a first, less compliant solder paste (312, 314) and a compliant preform (210) so as to cause compliant material of the preform (210) to dissolve into the solder paste (312, 314). Upon solidification of the solder paste (312, 314), blended regions (520, 522), having a gradual, changing concentration of compliant material form between resulting fillets (212, 214) and the preform (210). The blended regions (520, 522) transfer temperature induced shear stresses, caused by thermal cycling of the electronic assembly (100), from the fillets (212, 214) into the compliant preform (210).
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: September 3, 1996
    Assignee: Motorola, Inc.
    Inventors: John L. Leicht, William R. Bratschun
  • Patent number: 5535258
    Abstract: A radio telephone interface apparatus for speed dialing any of a plurality of stored sequences of digits forming telephone numbers. Pre-stored telephone numbers are stored in an electronic memory. Actuation of switches permits either sequential access to each of the stored telephone numbers or direct, nonsequential access to a desired set of stored telephone numbers. When the telephone numbers are sequentially access, mneumonic information associated with each one of the telephone numbers is provided to a voice synthesizer to provide an aural indication of the telephone numbers stored within individual ones of the directory locations.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: July 9, 1996
    Assignee: Motorola, Inc.
    Inventors: Manohar A. Joglekar, Joseph F. Cramer, Jr., George M. Korycan
  • Patent number: 5519777
    Abstract: A telephonic support receptacle for releasably affixing a portion of a telephonic handset thereto. Latch members forming portions of the support receptacle latchingly engage with latching surfaces formed upon the telephonic handset. Cantilevers are formed along opposing side surfaces of the support receptacle. Application of actuation forces upon either cantilever causes movement of the latch members out of the latching positions thereby to release the telephonic handset from latching engagement with the support receptacle.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: May 21, 1996
    Assignee: Motorola, Inc.
    Inventors: Jeffrey F. Kurgan, Paul J. Kudrna, Frank Annerino
  • Patent number: D375732
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: November 19, 1996
    Assignee: Motorola, Inc.
    Inventors: Phillip E. Lindeman, Albert L. Nagele
  • Patent number: D375733
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: November 19, 1996
    Assignee: Motorola, Inc.
    Inventors: Albert L. Nagele, Phillip E. Lindeman
  • Patent number: D375734
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: November 19, 1996
    Assignee: Motorola, Inc.
    Inventors: Albert L. Nagele, Phillip E. Lindeman
  • Patent number: D379558
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: June 3, 1997
    Assignee: Motorola, Inc.
    Inventors: Nicholas Mischenko, Shrirang Jambhekar
  • Patent number: D379982
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: June 17, 1997
    Assignee: Motorola, Inc.
    Inventors: Phillip E. Lindeman, Albert L. Nagele
  • Patent number: D383115
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: September 2, 1997
    Assignee: Motorola, Inc.
    Inventors: Albert L. Nagele, Leonid Soren, Steven W. Kaminski, Stephen J. Gaynes