Patents by Inventor Jack Avins

Jack Avins 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: 4577226
    Abstract: In a television system for recovering a stereophonic sound signal including a subcarrier signal, apparatus is provided including a bandpass filter for sensing the noise density of the recovered sound signal. A detector generates a control signal corresponding to the noise density sensed by the filter. The control signal is used to progressively attenuate the level of the subcarrier signal in response to increases of the sensed noise density. Although this gradually reduces the stereophonic separation, it provides a corresponding increase in the signal-to-noise ratio of the resulting reproduced stereophonic signal.
    Type: Grant
    Filed: November 30, 1982
    Date of Patent: March 18, 1986
    Assignee: RCA Corporation
    Inventor: Jack Avins
  • Patent number: 4408293
    Abstract: An automobile control system is disclosed which saves fuel while reducing environmental pollution. The accelerator pedal of a vehicle is monitored to provide a control signal indicative of the magnitude of the depression of the pedal. A first sensor monitors engine speed, while a second sensor monitors vehicle speed. A comparator aided by mode selected logic automatically selectively compares either the engine speed signal or the vehicle speed signal with the control signal and the throttle is automatically advanced or retarded for a given accelerator pedal position to provide operation with low fuel consumption and improved transmission shifting. In a mode which is particularly economical of fuel consumption for highway driving, the average vehicle speed is controlled by the accelerator pedal and automatically is caused to vary slightly in a cyclical manner so that intervals of acceleration are followed by intervals of coasting in which the throttle is substantially closed.
    Type: Grant
    Filed: December 4, 1980
    Date of Patent: October 4, 1983
    Inventor: Jack Avins
  • Patent number: 4084672
    Abstract: An automobile is constructed so that switching between free wheeling and direct drive is accomplished automatically, using normal driver reflexes, by causing free wheeling to be initiated (or continued) whenever the automobile is accelerated, and direct drive to be initiated (or continued) whenever the automobile is braked.
    Type: Grant
    Filed: December 24, 1975
    Date of Patent: April 18, 1978
    Assignee: RCA Corporation
    Inventor: Jack Avins
  • Patent number: 3984865
    Abstract: In a television signal processing system, broadband means responsive to television video signals are provided to derive a relatively broadband signal including signal components in a frequency range between zero Hertz and a frequency f. Narrowband means also responsive to the television video signals are provided to derive a relatively narrowband signal having a peak amplitude response at a frequency between zero Hertz and approximately f and a relatively lower response at frequencies of zero Hertz and approximately f. Thresholding means responsive to the narrowband signal are provided to inhibit translation of signal portions of the narrowband signal above a predetermined threshold. The amplitude inhibited narrowband signal is combined with the broadband signal to provide an output signal having relatively accentuated high frequency components and relatively suppressed noise components.
    Type: Grant
    Filed: March 26, 1975
    Date of Patent: October 5, 1976
    Assignee: RCA Corporation
    Inventor: Jack Avins
  • Patent number: 3961361
    Abstract: In a color television receiver, first and second amplifiers are respectively included in the luminance and chrominance channels to permit control of contrast and saturation. The amplifiers have gain versus control voltage characteristics including linear portions extrapolated to cut off at predetermined voltages which may or may not be the same. A first potentiometer is coupled between a source of fixed voltage equal to the extrapolated cut off voltage of the first amplifier and a gain controlling voltage source. The gain controlling voltage may be produced by a circuit including an element responsive to ambient light. The wiper of the first potentiometer is coupled to the first amplifier to couple a voltage developed at a predetermined point of the first potentiometer to the first amplifier to control its gain.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: June 1, 1976
    Assignee: RCA Corporation
    Inventors: Jack Avins, Bernard Joseph Yorkanis
  • Patent number: 3938181
    Abstract: A delay line suitable for television video signals is included in the luminance channel of a television video signal processing apparatus. A plurality of taps are coupled to the delay line for developing a plurality of delayed video signals. At least a first and a second of the delayed video signals are combined in first combining means to produce a first combined signal which determines the peaking characteristics of the luminance channel. A bandwidth determining signal is derived from at least a third one of the delayed video signals located in time between the first and the second delayed video signal. A second bandwidth determining signal is derived from at least a fourth and a fifth of the delayed video signals located in time between the first and the second delayed video signals. One of the bandwidth determining signals and the first combined signal are combined in a second combining means to produce a second combined signal.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: February 10, 1976
    Assignee: RCA Corporation
    Inventor: Jack Avins
  • Patent number: RE32148
    Abstract: A color reference signal is inserted during the vertical blanking interval of a transmitted television waveform, for utilization by the described apparatus in automatically setting the hue and saturation of the display of an NTSC or a PAL receiver. The apparatus responds to the transmitted burst signal to set the frequency and phase of the sub-carrier oscillator of the receiver and, further, to the transmitted reference signal to correct any such inaccurate setting of phase as is caused by adverse conditions of networking and transmission from the studio to the receiver.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: May 13, 1986
    Assignee: RCA Corporation
    Inventors: Jack Avins, Loren R. Kirkwood