Patents Assigned to American Wireless Corporation
  • Patent number: 5590410
    Abstract: A communications system includes at least two communications units, each communication unit including a transmitter capable of transmitting to the other unit on one or more frequencies, under the control of a mode control unit and wherein acquisition or a locking of frequencies of the two communications units and timing signal recovery is achieved by transmitting signals on a group of predetermined frequencies, the transmission on each frequency being for a predetermined time frame in a sequence which is repeated after n+1 time frames, wherein n is the number of different frequencies to be transmitted by the originating communications unit, and the receiving unit including a receiver operating on one of the predetermined frequencies for n+1 time frames until the receiving unit receives a signal from the originating unit and transmits an acknowledgment signal to the originating unit thus locking the two units on one of the predetermined frequencies such that information, transmission and reception can proceed
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: December 31, 1996
    Assignee: American Wireless Corporation
    Inventors: Brian M. Deutsch, Robert B. Foster, Jr.
  • Patent number: 5528623
    Abstract: A communications system includes at least two communications units, each communication unit including a transmitter capable of transmitting to the other unit at different power levels and on different frequencies, the power levels and frequencies of transmission being controlled by a mode control unit in response to indicators of transmission quality and reliability, wherein the mode control unit initially establishes a minimum power output of the transmitter at a fixed frequency to establish communications and if reliable communications cannot be maintained, increasing the level of output power of the transmitter until reliable communications are established as indicated by signals returned from another unit in the communications system, and wherein the mode control unit changes the output frequency of the transmitter from a single frequency mode to a time division spread spectrum mode if the required power output level of the transmitter exceeds a first predetermined threshold.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: June 18, 1996
    Assignee: American Wireless Corporation
    Inventor: Robert B. Foster, Jr.