Patents Represented by Attorney R. E. Smiley
  • Patent number: 4409557
    Abstract: An amplifier including an in phase feedback signal to therefore exhibit negative resistance is receptive of an input alternating signal which includes a frequency F. The output of the amplifier is coupled to a resonator adjusted to a center frequency F and having undesirable resistance which is offset by the negative resistance of the amplifier. The resonator includes an inductor and adjustable capacitor arranged either in series or in parallel with the amplifier to therefore change the value of F.
    Type: Grant
    Filed: April 23, 1981
    Date of Patent: October 11, 1983
    Assignee: RCA Corporation
    Inventor: Franco N. Sechi
  • Patent number: 4408298
    Abstract: A pseudo random number generator for generating a succession of numbers manifesting solely three values at random from two-bits.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: October 4, 1983
    Assignee: RCA Corporation
    Inventor: Kim Ruhland
  • Patent number: 4408296
    Abstract: A means to set spark timing in accordance with engine speed includes a counter to count clock pulses between engine speed reference pulses. A read-only memory has successive memory locations storing an addend quantity and a repeats number. An adder unit, including an accumulator, operates to access the memory locations, and to add the addend quantities to the contents of the accumulator repeatedly a number of times equal to the respective repeats numbers. A comparator produces an ignition firing pulse when the contents of the accumulator corresponds with the reference period number provided by the counter. Improved memory addressing means facilitates altering the spark advance in accordance with a sensed condition such as manifold vacuum, and conserves memory space.
    Type: Grant
    Filed: August 27, 1980
    Date of Patent: October 4, 1983
    Assignee: RCA Corporation
    Inventors: Anthony D. Robbi, Joseph O. Sinniger
  • Patent number: 4399411
    Abstract: A signal which changes from amplitude X to amplitude Z is applied to a resistor of value R which is series connected with an electrical L-C (inductor-capacitor) delay line unterminated at the opposite end and having a characteristic resistance of value R and one-way delay time T. An output terminal is coupled to the junction of the resistor and delay line. For a time duration 2 T after the input signal changes value, a signal of value (X+Z).div.2 appears at the output terminal and thereafter a signal of value Z appears.
    Type: Grant
    Filed: September 22, 1981
    Date of Patent: August 16, 1983
    Assignee: RCA Corporation
    Inventors: Donald F. Dion, Michael J. Cantella
  • Patent number: 4399439
    Abstract: An M by N switch matrix includes N input switches each single-pole M-throw, M output switches each N-throw single-pole with the N*M outputs of the N input switches coupled directly to respective ones of the N*M inputs of the M output switches whereby a signal applied at any of the N input switches can be coupled to the output of any one of the M output switches. The switches may consist of a plurality of dual-gate field effect transistors enabling the switching matrix to be utilized at microwave frequencies.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: August 16, 1983
    Assignee: RCA Corporation
    Inventor: Lakshminarashimha C. Upadhyayula
  • Patent number: 4394629
    Abstract: A 0.degree. and 180.degree. hybrid power divider/combiner includes a first quadrature hybrid and two other quadrature hybrids arranged in tandem with one output port of the first hybrid connected to an input port of the tandem arrangement and the other output port thereof connected to a delay of electrical length equal to that of the tandem arrangement. When an input signal is applied to one input port of the first hybrid with the other port terminated, two signals of reduced amplitude which are either in phase or of opposed phase (dependent on which input port receives the input signal) are produced at the output of the tandem arrangement and delay.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: July 19, 1983
    Assignee: RCA Corporation
    Inventors: Mahesh Kumar, Raymond J. Menna, Ho-Chung Huang
  • Patent number: 4376287
    Abstract: A microwave power circuit includes a thermally conductive, electrically insulating substrate such as beryllium oxide which has a relatively rough surface, a layer of dielectric material such as glass on a portion of the rough surface which layer has a relatively smooth surface, a conductive material on the relatively smooth surface, and a heat dissipating amplifying device having at least two terminals, one of which is connected to the conductive material and one of which is thermally connected to the substrate in a manner to pass heat thereto.
    Type: Grant
    Filed: October 29, 1980
    Date of Patent: March 8, 1983
    Assignee: RCA Corporation
    Inventor: Franco N. Sechi
  • Patent number: 4356415
    Abstract: A three terminal transferred electron device (TED) with a Schottky barrier gate and a series connected output circuit are connected to a bias supply which biases the TED just below threshold. A radio frequency (RF) signal of a given peak amplitude is applied to the TED gate which is biased such that the negative peak of each cycle of RF signal nucleates the domain in the TED. The resulting change in signal over a given time period at the output circuit is a measure of RF signal frequency.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: October 26, 1982
    Assignee: RCA Corporation
    Inventor: Fred Sterzer
  • Patent number: 3943491
    Abstract: A receiver of ultrasonic pulses having a known pulse width and at a known spacing includes a gate which is normally conditioned to accept the ultrasonic pulses. When the first pulse is received, however, the gate is opened thereafter only when subsequent pulses should be present and is closed when no pulses are expected. Such an arrangement prevents multipath signals being interpreted by the receiver as information.
    Type: Grant
    Filed: October 25, 1974
    Date of Patent: March 9, 1976
    Assignee: RCA Corporation
    Inventors: John Castleberry, Jr., Edward Peter Cecelski, Ralph Helmut Storz