Patents by Inventor William L. Crutcher

William L. Crutcher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5506549
    Abstract: A cable equalizer (10) receives signals transmitted over a coaxial cable (12) at a multi-path simulator (14). The multi-path simulator (14) includes a splitter (16) that places the signal along a first path (26) and a second path (28), wherein the signal on the first path (26) is 180.degree. out of phase with the signal along the second path (28). The signal along the first path (26) propagates to a combiner circuit (18). The signal along the second path (28) propagates through a delay circuit (20) having a delay value of .tau. that determines the notch spacing of the equalized signal. The signal along second path 28 propagates from delay circuit 20 to a variable attenuator circuit (22) that determines the notch depth for the equalized signal. The combiner (18) receives the signal along the first path (26) and the second path (28) and generates an equalized signal at the output of the multi-path simulator (14).
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: April 9, 1996
    Assignee: DSC Communications Corporation
    Inventor: William L. Crutcher
  • Patent number: 4581925
    Abstract: A tire pressure indicating system using valve stem mounted strain gauge transducers circuit connected to a hub mounted display device. A manual switch connects wires of the system for battery power to the strain gauge transducers and for display actuation. Both tires of a dual tire unit are selectively switch actuated for display by a single display unit. The strain gauge transducers used are small and light and the circuit wires that may be quick disconnect connected to the transducer on a wheel tire valve stem and to the hub mounted display device are sufficiently small and light so as to not impose materially adverse unbalance problems on a rotating wheel while the using vehicle is moving down the road.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: April 15, 1986
    Inventor: William L. Crutcher