Patents Represented by Attorney, Agent or Law Firm Steven G. Parmelee
  • Navigation system with easily learned destination selection interface
    Patent number: 5072395
    Abstract: A navigation system having a destination selection input mechanism that can be readily and rapidly used by an inexperienced user. The display (103) and user input (102) are physically configured and controllably intercoupled to support the conveyance of an impression to the inexperienced user that the information displayed can be selectively altered one field at a time in a precessing manner through appropriate use of the input unit (102). In one embodiment, selection of information for one field as pertains to a particular desired location destination will limit the information values that can be selected for remaining unselected information fields.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: December 10, 1991
    Assignee: Motorola, Inc.
    Inventors: Harry M. Bliss, Larry C. Puhl
  • Communication system interface module for use within a communication system network
    Patent number: 5070499
    Abstract: In a communication system network that comprises a plurality of communication systems and a processing multiplexer, the processing multiplexer comprises a processing module, a buffer module, a multiplexer module, and a buffer address module. The buffer module temporarily stores processed audio information, which is produced by the processing module, in one of several sections. The processed audio information is stored in section of the buffer module based on which signal destination it is for. If the processed audio information is destined for a signal destination that is assigned to a slot in the first distination interface bus, the processed audio information is stored in the first buffer location. When the processed audio information is placed onto the destination interface buses, it done so in a round robin fashion such that the communication system may operate in a real time frame.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: December 3, 1991
    Assignee: Motorola, Inc.
    Inventors: John W. Maher, Stephen J. Ranz
  • Linear transmitter training method and apparatus
    Patent number: 5066923
    Abstract: A linear transmitter having both an open loop and a closed loop training mode capability functions to schedule and facilitate these training modes in a manner that reduces adjacent channel splatter. A training waveform can be utilized to enhance these operational objectives. Scheduling of the open loop and closed loop training modes can be ordered, in a TDM system, in a variety of ways.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: November 19, 1991
    Assignee: Motorola, Inc.
    Inventors: Paul H. Gailus, Francis R. Yester, William J. Turney
  • Frequency agile, dielectrically loaded resonator filter
    Patent number: 5065120
    Abstract: A frequency agile, dielectrically loaded bandpass filter is disclosed in which capacitive layers on the top surface of the filter are selectively switched to ground in order to affect a change in the center frequency of the passband response of the filiter. A PIN diode switching network, including a means for biasing the diode, is used to effectively place the capacitive layers in parallel with the quarter-wavelength transmission line resonators contained within the block of the filter.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: November 12, 1991
    Assignee: Motorola, Inc.
    Inventor: Robert J. Munn
  • Method and apparatus for enabling a memory
    Patent number: 5062080
    Abstract: A method and device for enabling writes to a memory unit. The memory write device, such as a microprocessor (11), must provide a predetermined sequence of addresses to an address decoding unit (13), which then passes along the decoded addresses to a memory write enable unit (14). If the correct sequence, and only the correct sequence, is so provided, the memory write enable unit (14) will provide an enable signal (16) to the memory (12), thereby allowing the microprocessor (11) to write to the memory (12). A timer (26) can be utilized to limit the enable window.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: October 29, 1991
    Assignee: Motorola, Inc.
    Inventor: Eric S. Goldsmith
  • High frequency MOSCAP
    Patent number: 5060110
    Abstract: A MOSCAP that includes a semiconductor layer (103) having gold impurities sufficient to increase the density of deep recombination traps in the semiconductor bandgap. During operation of the MOSCAP in high frequency, reverse bias operating conditions, these deep recombination traps will facilitate formation of an inversion layer that will maintain relatively stable capacitive characteristics for the resultant MOSCAP.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: October 22, 1991
    Assignee: Motorola, Inc.
    Inventor: Robert C. Kane
  • Cold cathode field emission device having an electrode in an encapsulating layer
    Patent number: 5055077
    Abstract: A cold cathode field emission device (100) having an encapsulating layer (109) formed through a low angle vapor deposition process. The encapsulation layer (109) includes an electrode (111). Depending upon the embodiment, the electrode can function as an anode (312) or as a gate (111).
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: October 8, 1991
    Assignee: Motorola, Inc.
    Inventor: Robert C. Kane
  • Bandwidth agile, dielectrically loaded resonator filter
    Patent number: 5055808
    Abstract: A bandwidth agile, dielectrically loaded resonator filter is disclosed in which conductive strips (320, 322), plated on the top surface (302) of the filter and disposed between resonators (310, 312, 314), are selectively switched to ground in order to affect a change in the bandwidth without appreciably changing the center frequency of the filter response. PIN diode switching networks (316, 318), including a means for biasing the diode, are used to effectively ground the strips between the nearly quarter-wavelength transmission line resonators contained within the block (300) of the filter, thereby capturing a portion of the capacitive coupling (402, 404) which occurs mostly beneath the surface of the filter between adjacent resonators.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: October 8, 1991
    Assignee: Motorola, Inc.
    Inventors: Brian C. Walker, Robert J. Munn
  • Trunked radio communication system having encrypted system control information
    Patent number: 5054068
    Abstract: A trunked communication system having a control resource that encrypts system control messages. In one embodiment, the encryption includes controlling a bit interleaving process (208, 311) as a function of an encryption key (203, 321). In another embodiment, the encryption process includes reordering (202, 302) the information bits that constitute the message itself. If both encryption processes are used, the controlling encryption key can either be the same for both processes, or different.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: October 1, 1991
    Assignee: Motorola, Inc.
    Inventors: David W. Hess, Gary W. Grube, Robert J. Locascio
  • Electrostatically switched integrated relay and capacitor
    Patent number: 5051643
    Abstract: An electrostatically energized and integrable relay is disclosed that has dimensions that permit closure and maintenance of a contact between electrodes using electrostatic forces exclusively. The physical dimensions are such that it could be formed using integrated circuit fabrication techniques. Small spacing between the electrodes of the relay permit the device to be usable in an integrated form, perhaps on an integrated circuit substrate.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: September 24, 1991
    Assignee: Motorola, Inc.
    Inventors: Lawrence Dworsky, Marc K. Chason
  • Radio receiver having automatic bandwidth control during tuning
    Patent number: 5050237
    Abstract: In this radio receiver, the charge on a capacitor (14) controls the bandwidth of filters in the receiver's audio circuits. When tuning the radio, a bandwidth control circuit (13) forces this capacitor (14) to discharge, thereby forcing the audio path to be bandwidth restricted, thereby minimizing interstation noise reproduction.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: September 17, 1991
    Assignee: Motorola, Inc.
    Inventor: Lawrence M. Ecklund
  • Multiple communication path compatible automatic vehicle location unit
    Patent number: 5046130
    Abstract: A location reporting device for use with both voice and data RF transceivers. The location determining device selects which of the transceivers will be utilized to transmit location information to a central site in response to a number of predetermined criteria, including reception of a polling request on one of the transceivers, initiation of transmission activity on one of the transceivers, and elapsed time since a last transmission of location information by the location unit.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: September 3, 1991
    Assignee: Motorola, Inc.
    Inventors: Scott M. Hall, Thomas R. Berger
  • Frequency equalized simulcast broadcasting system and method
    Patent number: 5046128
    Abstract: A simulcast system (100) having remote sites (104) that can transmit a carrier signal (107) having a modulation signal imposed thereon, wherein both the carrier and the modulation signal are derived from the same reference. Monitoring stations (108) receive transmissions from two or more remote sites, and determine the differential, if any, between the frequencies of the recovered modulation signal. The system then acts upon this information to provide correction information to one or more of the remote sites as necessary to ensure substantial carrier frequency similarity between the remote sites.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: September 3, 1991
    Assignee: Motorola, Inc.
    Inventor: Richard L. Bennett
  • Radio frequency data communication band pass filter
    Patent number: 5042085
    Abstract: The RF data communication band pass filter is a fixed device that filters both RF multi-level data signals and binary-level data signals. The RF data communication band pass filter comprises a low pass filtering means having a corner frequency of approximately 2900 Hertz and as high pass filtering means of approximately 340 Hertz. By using precision components the overall group delay envelope is such that both multi-level RF data signals and binary-level RF data signals are adequately filtered without substantial harmonic distortion or spectral distortion. In addition, the communication band pass filter meets the strictest of international RF data communication requirements.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: August 20, 1991
    Assignee: Motorola, Inc.
    Inventor: James H. Errico
  • TDM/FDM communication system supporting both TDM and FDM-only communication units
    Patent number: 5038342
    Abstract: An RF communications system that can determine when a requesting subscriber unit comprises a TDM capable unit, and when it doesn't. Channel assignments are based upon this determination. The system also includes repeaters that can translate communications in a TDM format as transmitted by a TDM capable unit into non-TDM format for subsequent transmission to a non-TDM capable unit, and vice versa.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: August 6, 1991
    Assignee: Motorola, Inc.
    Inventors: Kenneth J. Crisler, Lawrence M. Mohl, Michael D. Kotzin, Anthony P. Van den Heuvel
  • Method and means for damping modes of piezoelectric vibrators
    Patent number: 5032755
    Abstract: A method and arrangement for providing damping of undesired modes of piezoelectric vibrators is disclosed that eliminates the tedious and often inaccurate methods of known mass-loading techniques. Instead, the arrangement relies on physically altering a controlled amount of the piezoelectric material located at a predetermined point to effect the selective damping needed to minimize the undesired responses and to minimally interfere with the desired mode of operation.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: July 16, 1991
    Assignee: Motorola, Inc.
    Inventor: Robert S. Witte
  • Method and apparatus for providing an operating mode alias to a radio
    Patent number: 5031232
    Abstract: A radio programming device (100) that allows for operating mode information (Table 2) as preprogrammed in a radio (101) to be accessed and compared against a mode name alias data base (Table 1). When matches are found, the appropriate mode name alias is provided to the radio, and the radio stores it and uses it thereafter when operating in the corresponding operating mode.
    Type: Grant
    Filed: November 16, 1989
    Date of Patent: July 9, 1991
    Assignee: Motorola, Inc.
    Inventor: Kevin B. Mayginnes
  • Cascaded cold cathode field emission devices
    Patent number: 5030921
    Abstract: Field emission devices are cascaded in multiple stages, such that certain structures function as electrodes for field emission devices of differing stages.
    Type: Grant
    Filed: February 9, 1990
    Date of Patent: July 9, 1991
    Assignee: Motorola, Inc.
    Inventor: Robert C. Kane
  • Phase-locked loop signal generation system with control maintenance
    Patent number: 5028885
    Abstract: A phase-locked loop system having as input a stable refernce clock signal and outputting a master clock signal. The phase of the stable reference clock signal is compared to that of the pre-scaled master clock signal and the difference represented by an analog error signal which is converted to a digital signal by an A/D converter (116). The digital signal is then transformed into an analog control signal by a D/A converter (120) and applied to a VCO (128) which generates the master clock signal, If the stable reference clock signal has degraded or is lost the A/D converter (116), which receives its sampling clock in part from the stable reference clock signal, stops sampling and thus stops producing digital signals. The last good digital signal is maintained, the last good analog control signal is maintained and thus the master clock signal is maintained.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: July 2, 1991
    Assignee: Motorola, Inc.
    Inventors: John Voigt, Tom Kundmann
  • Communication system with improved resource assignment
    Patent number: 5025254
    Abstract: A trunked communication system wherein some of the communication resources are preassigned for exclusive use only by a predetermined group, such as a public safety agency. In addition, to assure optimal assignment of communication resources, communication resource assignments are made pursuant to a methodology that minimizes usurpation of unused resource capabilities.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: June 18, 1991
    Assignee: Motorola, Inc.
    Inventor: David W. Hess