Patents Examined by Scott Richardson
  • Patent number: 6029128
    Abstract: A post-processor 317 and method substantially for enhancing synthesised speech is disclosed. The post-processor 317 operates on a signal ex(n) derived from an excitation generator 211 typically comprising a fixed code book 203 and an adaptive code book 204, the signal ex(n) being formed from the addition of scaled outputs from the fixed code book 203 and adaptive code book 204. The post-processor operates on ex(n) by adding to it a scaled signal pv(n) derived from the adaptive code book 204. A gain or scale factor p is determined by the speech coefficients input to the excitation generator 211. The combined signal ex(n)+pv(n) is normalised by unit 316 and input to an LPC or speech synthesis filter 208, prior to being input to an audio processing unit 209.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: February 22, 2000
    Assignee: Nokia Mobile Phones Ltd.
    Inventors: Kari Jarvinen, Tero Honkanen
  • Patent number: 5905949
    Abstract: Apparatus for identifying wireless subscriber units and for determining if access to a communications network should be granted. A plurality of wireless subscriber units each generates a wireless subscriber signal including internal data traits and external signal traits. The internal data traits include an identification code. A RF downconverter is located remote from the wireless subscriber units and receives the wireless subscriber signal. A characterizing device is connected to the RF downconverter and extracts parameters that characterize the external signal traits of the wireless subscriber units. A decision device computes the likelihood that the observed parameters belong to the validated wireless subscriber unit to determine if access to the wireless subscriber service should be granted. The apparatus may be used to prevent cellular telephone cloning fraud.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: May 18, 1999
    Assignee: Corsair Communications, Inc.
    Inventors: Kelly Davidson Hawkes, Michael Shaw McKinley, Kenneth Irwin Talbot
  • Patent number: 5873064
    Abstract: Method for implementing a multi-action voice macro (140) for a voice recognition navigator program (102) on a computer system. The method involves analyzing a target application program (22) to determine a plurality of target application states (24). Each of the target application states (24) is comprised of a plurality of window objects. The target application states are arranged in the form of one or more sub-context trees, with each of the sub-context trees comprised of a plurality of sub-context objects (50, 52, 54, 56, 58, 60, 62, 64, 66, 68). A set of user inputs is determined to which each of the window objects will be responsive. Each user input is assigned a corresponding voice macro (140) which simulates the user inputs in response to a spoken utterance. The voice macro (140) includes a link field (148), which identifies at least one linked macro to be executed by the navigator program (102) when a specific vocabulary phrase for the voice macro (140) is spoken by a user.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: February 16, 1999
    Assignee: International Business Machines Corporation
    Inventors: Mario E. De Armas, Harvey M. Ruback
  • Patent number: 5873057
    Abstract: The speech of a group of virtual characters is modelled using a directed graph or audio web, where each utterance is a node (A1-A7, B1-B5) in the web having links from it to each possible utterance that can be made in reply at any point in the course of the interaction. The choice of the next node (conversation segment) is dependent on attributes of the character and/or the virtual environment in which the conversation is taking place. These attributes may be fixed, modified by system function calls available at each node, or modified in response to user input.
    Type: Grant
    Filed: February 4, 1997
    Date of Patent: February 16, 1999
    Assignee: U.S. Philips Corporation
    Inventors: David A. Eves, Richard J. Allen
  • Patent number: 5870672
    Abstract: Validating identification clusters formed of unique transmitter intercepts and validating clusters based on information within the cluster data with or without the aid of specific intercepts. Transmitter validation signals are allocated for validating specific ones of the transmitters. Analyzers identify specific received intercepts from specific ones of the transmitters to form an identification signal. Storage is provide for storing the specific received intercepts with corresponding identification clusters for marking the specific identification cluster as validated or invalidated. The valid and invalid states of the stored clusters are used to authorize or prevent access by the transmitters to the communication system.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: February 9, 1999
    Assignee: Corsair Communications, Inc.
    Inventors: Robert Eugene Stoddard, Michael Shaw McKinley
  • Patent number: 5867780
    Abstract: A information fulfillment system and method for providing information to a caller having a wireless communication device. Upon receipt of sensory prompting and manual or automatic input of access codes to the wireless communication device, the caller's identity and the input access code are verified. Thereafter, the call is connected through the PWN and along the PSTN to the system messaging or fulfillment center for automatic or live-operator delivery of the requested information. Automatic verification, connection, and billing modification processes are provided for implementation of the system and method.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: February 2, 1999
    Assignee: Jeman Technologies, Inc.
    Inventors: James E. Malackowski, Kristi L. Stathis
  • Patent number: 5864792
    Abstract: A speed-variable speech signal reproduction apparatus and method for playing back speech signals stored in a storage medium at an adjusted speed while preventing any degradation in tone or loss of the speech signals from occurring. The method includes the steps of detecting the pitch of input digital speech signals using an average magnitude difference function, separating voice and voiceless sounds of the speech signals from each other based on the result of the detecting step, temporarily storing the separated voiceless sound, modulating the lengths of the speech signals by copying or eliminating a part of the separated voice sound, and synthesizing the modulated voice sound step with the voiceless sound temporarily stored in the storing step.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: January 26, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chul Hong Kim
  • Patent number: 5864796
    Abstract: A speech synthesis apparatus in which spectrum emphasis characteristics can be set easily taking into account the frequency response and psychoacoustic hearing sense and in which the degree of freedom in setting the response is larger. An excitation signal ex(n) is synthesized by a synthesis filter 12 to give a synthesized speech signal which is sent to a spectrum emphasis filter 13. The spectrum emphasis filter 13 spectrum-emphasizes the synthesized speech signal and outputs the resulting spectrum-emphasized signal. The vocal tract parameters from an input terminal 21 are converted by a parameter conversion circuit 23 into linear spectral pair (LSP) frequencies which are interpolated by an LSP interpolation circuit 24 with equal-interval line spectral pair frequencies to produce interpolated LSP frequencies. The transfer function of the spectrum emphasis filter 13 is determined on the basis of the interpolated LSP frequencies.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: January 26, 1999
    Assignee: Sony Corporation
    Inventors: Akira Inoue, Masayuki Nishiguchi
  • Patent number: 5845242
    Abstract: A computer system having a control unit, a rounding circuit, and an ADPCM decoder. The control unit generates ADPCM sound data. The rounding circuits rounds a calculating value of the ADPCM sound data so that the ADPCM decoder reproduces original sound from the rounding value of the ADPCM sound data provided by the rounding circuit.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: December 1, 1998
    Assignee: Hudson Soft Co., Ltd.
    Inventors: Katsunori Takahashi, Masahide Tomita
  • Patent number: 5842169
    Abstract: A read/write control circuit for a memory uses a read/write judging circuit which receives read and write request signals and a directional signal indicating whether a sequence of sound data inputted into the memory is in forward (normal) sequence or reversed sequence. The read/write judging circuit refers to the directional signal when both the read and write request signals simultaneously become active such that the read/write judge circuit gives priorty to a write operation in the memory when the sequence is normal by asserting a write enable signal and gives priorty to a read operation in the memory when the sequence is reversed by asserting a read enable signal.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: November 24, 1998
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Yoshikazu Sakashita
  • Patent number: 5842131
    Abstract: A system for confirming a position of a moving terminal in a radio communication network including a plurality of base stations each corresponding to one of a plurality of individual radio areas. A moving terminal having a specific identification number is provided which includes a receiver for receiving a paging signal including the specific identification number, and a transmitter for wirelessly outputting a response signal in response to the paging signal. A first data base is provided for storing position data representing positions within the plurality of individual radio areas to which a person holding the moving terminal may visit, and base station data representing respective ones of the base stations corresponding to the positions to which the person holding the moving terminal may visit. The position data and the base station data are stored in the first data base in an associated manner with respect to the identification number of the moving terminal.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: November 24, 1998
    Assignee: Casio Computer Co., Ltd.
    Inventor: Kazuyasu Yamane
  • Patent number: 5842170
    Abstract: A method and system for editing messages within a recording system includes a handheld recorder having flash memory and a plurality of memory address pointers for storing messages. The flash memory has a plurality of sequential memory blocks, each memory block has a plurality of memory locations, and the messages are stored as message segments. The plurality of memory address pointers stores an ordered sequence of addresses of said message segments within the flash memory. Upon an edit point being selected within a message at which the message is to be edited, the edit point corresponding to a first location within the message defining an end point of a first message segment, an edited message comprising a second message segment is generated.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: November 24, 1998
    Assignee: Norris Communications Corp.
    Inventors: Norbert P. Daberko, Richard K. Davis, Richard D. Bridgewater
  • Patent number: 5828956
    Abstract: A module (P-code module) provides parameter information to a Number Assignment Module (NAM) in a cellular phone unit by processing a simple programming code (P-code) entered by the user through a telephone keypad. The P-code employs a flexible length telephone keypad coding that can be translated into programmable parameters of cellular phone products. Field identification numbers and look-up tables are used to shorten the P-code length for more frequently used information. To activate a cellular phone, the user provides product and serial number information to a dial-up access center which then generates a scrambled P-code for entry by the user. The P-code module within the processor unit of the cellular phone likewise descrambles, decompresses, and performs an integrity check on the sequence of digits being entered by the user.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 27, 1998
    Assignee: Sony Electronics, Inc.
    Inventor: Kazuhiko Shirai
  • Patent number: 5826173
    Abstract: A method for efficiently paging a mobile phone in a radio communication system having a plurality of mobile phones is disclosed. A first paging signal is transmitted for a mobile phone on a first try channel. If the mobile phone does not acknowledge the first paging signal within a predetermined period of time, the call is transferred to at least a second try channel. A second paging signal is then transmitted for the first mobile phone on at least the second channel.
    Type: Grant
    Filed: November 15, 1995
    Date of Patent: October 20, 1998
    Assignee: Ericsson Inc.
    Inventor: Paul W. Dent
  • Patent number: 5826235
    Abstract: A communication package has, enclosed in a storage disc, a voice chip connected by power input bus terminals to a renewable, battery power system which provides easy battery accessibility. The storage disc preferably contains an acoustically resonant chamber and diffusion apparatus and preferably contains a removable barrier between the power system and the power input bus terminals that must be removed before the voice chip can be energized. A voice message is stored in the communication package by recording the voice message into a recording unit, replaying the voice message, optionally re-recording at least a portion of the message until the replay is satisfactory, converting the message to a compressed, digital "sound file" and then downloading this "sound file" onto the voice disc. Identifying information is converted into a compressed, digital "text file" and transmitted with the "sound file" to be displayed as a visual identification of the "sound file".
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: October 20, 1998
    Assignee: The Messenger Group, LLC
    Inventor: Jeffrey A. Harman
  • Patent number: 5815811
    Abstract: A communications network comprising a cellular local area wireless network includes a plurality of access points connected to a housed computer and each other, and a plurality of mobile units each mobile unit being arranged for association with an access point. The mobile units are arranged to periodically scan for and identify the most eligible access point for association on the basis of the criteria of best quality signal strength and loading factor. In order to identify when mobile units are being removed from a predetermined area, access points having directional antennae are situated adjacent exit points to detect when mobile units are in a vicinity.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: September 29, 1998
    Assignee: Symbol Technologies, Inc.
    Inventors: Patrick Pinard, Frederic Heiman
  • Patent number: 5812637
    Abstract: An apparatus for interfacing at least one land-line telephone service, at least one wireless cellular-type telephone service, at least one cellular-type wireless telephone and at least one standard telephonic type communication device through standard building interior telephone cable.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: September 22, 1998
    Assignee: Telular Corp.
    Inventors: Louis W. Schornack, Carl T. Heitschel, Nuri G. Anter, Neil Beneditz, Jay Kinder
  • Patent number: 5809465
    Abstract: A pattern recognition method of dynamic time warping of two sequences of feature sets onto each other is provided. The method includes the steps of creating a rectangular graph having the two sequences on its two axes, defining a swath of width r, where r is an odd number, centered about a diagonal line connecting the beginning point at the bottom left of the rectangle to the endpoint at the top right of the rectangle and also defining r-1 lines within the swath. The lines defining the swath are parallel to the diagonal line. Each array element k of an r-sized array is associated with a separate array of the r lines within the swath and for each row of the rectangle, the dynamic time warping method recursively generates new path values for each array element k as a function of the previous value of the array element k and of at least one of the current values of the two neighboring array elements k-1 and k+1 of the array element k.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: September 15, 1998
    Assignee: Advanced Recognition Technology
    Inventors: Gabriel Ilan, Jacob Goldberger
  • Patent number: 5809395
    Abstract: A multichannel radiotelephony system provides two way cordless communications with a plurality of multichannel transceivers portable within a coverage area comprised by a plurality of cells, each associated with a base station and antennas, such as to permit channel frequency reuse in cells within the coverage area. For at least part of the coverage area, the locations of the antennas within the cells and the locations of the base stations are independently mapped, the antennas being associated with active antenna systems and the active antenna systems being connected to the base stations utilizing broadband transmission by means of a fixed bi-directional signal distribution network. The network is connected to the base stations and the antenna systems through suitable interfaces incorporating frequency translation so that available frequency bands in the signal distribution network which will normally be shared with other services, may be utilised. Plural base stations may be co-located.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 15, 1998
    Assignee: Rogers Cable Systems Limited
    Inventors: Nicholas Francis Hamilton-Piercy, George Maynard Hart, Edward O'Leary
  • Patent number: 5809425
    Abstract: A low cost alphanumeric paging entry system is based on a low cost paging (LCP) device to enter paging messages remotely from any telephone. The device is designed to minimize the needs for user training and is intended for intuitive operation by the user. The device uses simplex communications, using a system of Baudot tones, to send the paging message to the paging system for transmission to the intended recipient. A gateway is a device intended to interface between such an LCP device and an otherwise conventional paging system. The gateway provides a series of audible prompts to the user to facilitate easy and intuitive entry of the paging message to the gateway. The gateway then re-formats the paging message into a standard digital paging message format and re-transmits the message to a pagan system for transmission to the recipient.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 15, 1998
    Assignee: Ultratec, Inc.
    Inventors: Kevin Colwell, Robert M. Engelke