Patents Represented by Attorney, Agent or Law Firm Lalita P. Williams
  • Patent number: 6141564
    Abstract: Method and apparatus for sharing a SIM card between two masters. The invention may be embodied in so-called multi-mode radiotelephones that use SIM cards to store and access information. The multi-mode radiotelephone includes at least two master components and a single SIM card. The method and apparatus synchronizes and coordinates communications from either master component directly to the SIM card, thereby allowing a single SIM card to directly service two master components.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: October 31, 2000
    Assignee: Motorola, Inc.
    Inventors: John David Bruner, Eric Edward Payne, Richard Allen Pace, Nathaniel David Roberts
  • Patent number: 6138010
    Abstract: A method and communication device (102) provide multimode communication with multiple autonomous communication systems including a first communication system (104) and a second communication system (106). Resources are dedicated to communication on the respective communication systems. To minimize product cost, resources are shared wherever possible between communication on respective modes. A system supervisor (304) prioritizes, schedules and controls communication between the communication device and the autonomous communication systems.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: October 24, 2000
    Assignee: Motorola, Inc.
    Inventors: Duane C. Rabe, William P. Alberth, Jr., John G. Rauch
  • Patent number: 6137996
    Abstract: A communications device transmitting and receiving RF signals having an antenna including an antenna core, a plurality of first polarized antenna elements wound about the antenna core in a first direction, a plurality of second polarized antenna elements wound about the antenna core in a second direction, and a plurality of RF PIN diodes inserted in the plurality of first and second polarized antenna elements at the points where the plurality of first polarized antenna elements and the second polarized antenna elements overlap. A communications device and method for decreasing fading of a call due to multipath by switching between polarizations of the antenna when the power level of the RF signals drops below a predetermined threshold. A communications device and method for decreasing fading of a call by averaging power levels on both polarizations of the antenna.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: October 24, 2000
    Assignee: Motorola, Inc.
    Inventor: William John Baumann
  • Patent number: 6091368
    Abstract: An accessory (100) for docking a handset (1010) of a SSU and providing a connection to the SSU's antenna (1210) or a different antenna. The accessory (100) includes a first power/data connector (115) and the handset (1010) includes a second power/data connector (1014). The accessory (100) also includes a rotating rotating antenna coupler (130) whereby when the coupler (130) is in a first position, the handset (1010) can be placed in a recess (112) of the accessory (100) and coupled to a first connector (320). When the coupler (130) is rotated to a second position, the handset (1010) moves in a direction perpendicular to the coupler's axis of rotation until the second power/data connector (1014) mates with the first power/data connector (115), thereby locking the handset (1010) in the accessory (100). Once the handset (1010) is locked in the accessory (100), an antenna (1210) can be connected to a second connector (340) in the coupler (130).
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: July 18, 2000
    Assignee: Motorola, Inc.
    Inventors: Jay R. Mitchell, James L. Isbell, Michael S. Horn
  • Patent number: 6065187
    Abstract: A hinge assembly (2800) for a wireless communication device (100) having a body (104), and a cover (102) including a barrel (216) integrally formed thereon. The hinge assembly (2800) includes a follower (2802), a cam (2804) coupled to the follower (2802) and a spring (2806) coupled to the cam (2804) and coiled around a segment of the follower (2802). The hinge components can be fully assembled and self contained apart from manufacture of the wireless communication device (100).
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: May 23, 2000
    Assignee: Motorola, Inc.
    Inventor: Nicholas Mischenko
  • Patent number: 6062912
    Abstract: An antenna coupling system including an antenna stem (108) with a raised wall (206) having an opening (210) therethrough and defining a plurality of key receptacles (216, 218, 220, 222) and detents (224, 410, 412) coupled to an antenna latch detent mechanism (102) that provides a manner of maintaining a SSU antenna (106) in a stowed position and two deployed positions with respect to the SSU handset (100). The antenna coupling system further includes an antenna connector (110) and a handset connector (104) wherein rotation of the antenna connector (110) with respect to the handset connector (104) maintains a robust RF connection and notifies circuitry in the handset (100) when the antenna (106) is in one of two deployed positions.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: May 16, 2000
    Assignee: Motorola, Inc.
    Inventors: Mark F. Witczak, Mark A. Chesney, Michael L. Naughton, Matthew Ronald Michieli, Charles Glen Smith, Jr.
  • Patent number: 6052595
    Abstract: A system for choosing a communication having an ACRE 117, a radiotelephone 101 and a cordless base station 115. The cordless base station 115 connected to the ACRE 117 by a wireline network 111 and receiving a message authorizing the use of a subset of channels. The cordless base station 115 determining which of the set of channels meets a channel quality criteria and only communicating over a channel, to the radiotelephone 101, if the channel meets the channel quality criteria and is authorized.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: April 18, 2000
    Assignee: Motorola, Inc.
    Inventors: Michael J. Schellinger, Robert F. D'Avello
  • Patent number: 6052592
    Abstract: A call routing system includes an authorization and call routing equipment (ACRE) 117, a cordless base station 115 connected by a wireline network 111 having caller identification. The cordless base station 115 initiates a call to the ACRE 117, which receives the cordless base station's 115 telephone number. The ACRE 117 then uses the telephone number for routing subsequent telephone calls to the cordless base station 115. The cordless base station 115 can receive and store caller indentification information and transmit this information to a radiotelephone 101.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: April 18, 2000
    Assignee: Motorola, Inc.
    Inventors: Michael J. Schellinger, Robert F. D'Avello
  • Patent number: 6041241
    Abstract: A wireless communication device (100) comprises a battery (103) for providing power to the circuitry of wireless communication device (100). Optionally, power can be provided by an external power source, such as an automobile's cigarette lighter, via a plug (115). A power-availability circuit (101) determines an amount of available power from either source. A microprocessor (105) determines a new slot cycle index according to the amount of available power, and wireless communication device (100) is controlled according to the new slot cycle index.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: March 21, 2000
    Assignee: Motorola, Inc.
    Inventor: William Daniel Willey
  • Patent number: 6021332
    Abstract: A radiotelephone (100) includes a main battery (101) and is operable on a first communication system. A supplemental module (102) may be attached to the radiotelephone. The supplemental module may include a second RF communication circuit for communicating with a second communication system. This allows the user to configure the radiotelephone for communication with currently available systems. The supplemental module may further include an auxiliary battery for providing extended battery operation. The radiotelephone includes a discharging and charging circuit (310) to control the discharge and charge of the auxiliary and main batteries in a way that allows uninterrupted, continuous operation of the radiotelephone.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: February 1, 2000
    Assignee: Motorola, Inc.
    Inventors: William P. Alberth, Jr., Joan E. Zocher, Michael W. Frenzer
  • Patent number: 5988577
    Abstract: An adjustable carrying assembly for a wireless communication device, such as a radiotelephone. The carrying assembly is comprised of a device support member having a first spring coupled thereto for receiving the communication device and a clip mechanism coupled thereto for mounting the carrier assembly on a user's belt or other article of clothing. The clip mechanism comprises a clip support member, a pin, a clip, a second spring and a cap. One end of clip support member includes an opening with a plurality of grooves arranged in a circular array. The device support member is rotatably attached to the clip support member of the clip mechanism such that when the user rotates the device support member with respect to the clip mechanism, first spring moves from one of the plurality of grooves to another of the plurality of grooves and locks into position.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: November 23, 1999
    Assignee: Motorola, Inc.
    Inventors: William Charles Phillips, David William Trahan
  • Patent number: 5987012
    Abstract: A wireless communication device (100) can be handed off while operating in the slotted mode of a CDMA system. The wireless communication device (100) stores, prior to entering slotted mode, an Active Set including at least one active pilot and a Neighbor Set including a plurality of neighbor pilots. At least one receiver searcher (109) scans the at least one active pilot and at least one of the plurality of neighbor pilots prior to an assigned slot. A logic and control circuit (113) includes in the Active Set, prior to the assigned slot, at least two pilots of the at least one active pilot and the at least one of the plurality of neighbor pilots scanned prior the assigned slot. At least two of a plurality of receiver fingers (107) simultaneously monitor the Paging Channels of the at least two pilots during the assigned slot.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: November 16, 1999
    Assignee: Motorola, Inc.
    Inventors: Eugene J. Bruckert, Richard J. Vilmur
  • Patent number: 5974042
    Abstract: A radiotelephone (121) employs a service detection circuit (125) comprising at least one chip-rate detector (109) that measures the energy of the autocorrelation of a received composite CDMA signal and employs a different time delay for each measurement of the energy. A threshold detection circuit (127) combines the measured energies and determines that service is available if the combined energies exceeds a threshold, and determines service is unavailable otherwise. The chip-rate detectors (109) can be coupled in parallel to provide simultaneous measurements of the energy of the autocorrelation of the received composite CDMA signal, or a single chip-rate detector (109) can serially measure the energy of the autocorrelation of the received composite CDMA signal.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: October 26, 1999
    Assignee: Motorola, Inc.
    Inventors: Colin D. Frank, Jennifer A. Honkisz, Brian D. Storm
  • Patent number: 5943027
    Abstract: A telescopic antenna assembly provides pairs of arms (210, 220, 230 and 240) on an elongated dielectric tube (260). A hot conductor (273) and a ground conductor (275) of a group of exciters couple energy between the arms and a feed line (250). The hot and ground conductors (273) and (275) slide within the tube (260) between extended and retracted positions while maintaining efficient electromagnetic coupling to the arms.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: August 24, 1999
    Assignee: Motorola, Inc.
    Inventors: Kevin M. Thill, William H. Darden, IV
  • Patent number: 5920550
    Abstract: A wireless communication device (100) continues to measure pilot signal strengths while in the System Access State (220) and provides at least one of the current measured pilot signal strengths to the base station in each access probe (210). A base station (102) receives the current information on pilot signal strengths (305; 320) and the system specifies the base stations for soft handoff according to the current measured pilot signal strengths (315; 340).
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: July 6, 1999
    Assignee: Motorola, Inc.
    Inventor: William Daniel Willey
  • Patent number: 5920549
    Abstract: A wireless communication device (100) can be handed off while operating in the slotted mode of a CDMA system. The wireless communication device comprises a receiver searcher (109) that measures the signal strength of an active pilot prior to the assigned slot and at least one of a plurality of neighbor pilots during an assigned slot. Receiver fingers (107) demodulate a Paging Channel of the active pilot during an assigned slot and can also determine signal strength of pilots simultaneously with the receiver searcher. A Hot Neighbor List is used to prioritize the order in which neighbor pilots are scanned. A logic and control circuit (113) determines if neighbor pilots should be scanned beyond the assigned slot, if the Hot Neighbor List should be modified, and if the wireless communication device should be handed off to another pilot.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: July 6, 1999
    Assignee: Motorola, Inc.
    Inventors: Eugene J. Bruckert, Richard J. Vilmur
  • Patent number: D410460
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: June 1, 1999
    Assignee: Motorola, Inc.
    Inventor: Jeong Hye Min
  • Patent number: D412709
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: August 10, 1999
    Assignee: Motorola, Inc.
    Inventors: Bradley K. Lohrding, Galina Treyer, Mark F. Witczak
  • Patent number: D419565
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: January 25, 2000
    Assignee: Motorola, Inc.
    Inventors: Bradley K. Lohrding, Christopher J. Nona
  • Patent number: D432509
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: October 24, 2000
    Assignee: Motorola, Inc.
    Inventors: William Duncan Webb, Bradley Keith Lohrding, Richard Enrique Maldonado, Matthew Ronald Michieli, Jay Robert Mitchell, James Lee Isbell