JOHN L GEORGE, MD
Radiology at Guion Rd, Indianapolis, IN

3958180, May 18, 1976

Jun 3, 1974

5/476082

John Barrett George - Indianapolis IN

RCA Corporation - New York NY

H04B 134

325422

A varactor tuner frequency controller wherein a tuning voltage is developed for optimumly tuning a VHF tuner or a UHF tuner to any one of a plurality of channels. A capacitor utilized to store charge for developing the tuning voltage is discharged by means of a pulse developed by a monostable circuit which is gated by a bandswitch reset pulse. Charging of the capacitor is provided for by a positive current source which supplies a substantially constant current to the capacitor in the absence of a hold signal, the hold signal only being present when a selected channel has been reached. In the presence of a hold signal, the current supplied by the positive current source is modified in accordance with an automatic fine tuning signal, and a negative current source supplies a substantially constant current to the capacitor approximately equal to the current supplied by the positive current source in the absence of the hold signal to effect a stopping of the sweep. When irregular spaced channels are being tuned, the negative current source is momentarily disabled in the presence of a hold signal to provide for an incremental sweep of the tuning voltage to place the tuning voltage within a range which will provide for proper automatic fine tuning operation.

3961263, Jun 1, 1976

Jun 3, 1974

5/476086

John Barrett George - Indianapolis IN

RCA Corporation - New York NY

H04B 116

325421

A bandstart detector system for a television receiver tuning system wherein a sample of oscillator signals utilized for conversion of radio frequencies into intermediate frequencies is coupled to a plurality of tuned circuits. Detecting means are coupled to each of the tuned circuits to produce control signals having an amplitude inversely related to the difference between the oscillator signal frequency and the resonant freqency of each of the tuned circuits. The amplitude of the control signal will vary as the oscillator signal frequency is swept in a regular manner through a predetermined band of frequencies corresponding to television channel frequency allocations. The control signals are coupled to a sensing circuit which produces one output signal when the control signal is below a predetermined level and a second output signal when the control signal is above a predetermined level. The output signals produced by the sensing circuit are utilized to initiate counting of pulses, each produced as a result of a frequency comparison of a plurality of harmonically related frequency samples with a regularly recurring variation of the oscillation frequency. The resultant pulses are allowed to be accumulated in a counter employed to identify the channel being received.

4249089, Feb 3, 1981

Jun 27, 1979

6/052660

James J. Wolford - Indianapolis IN
John B. George - Indianapolis IN

RCA Corporation - New York NY

H01H 8300

307140

The control portion of a television receiver includes a flip flop which when supplied with operating power stores a binary signal having either an "on" level corresponding to the on condition of the receiver or an "off" level corresponding to the off condition of the receiver. In addition to a user responsive input arrangement for selectively controlling the level of the binary signal, a switching circuit is coupled to the flip flop to return the binary signal to its prior level after power line dropouts having less than a predetermined duration, and otherwise causing the binary signal to have its "off" level. The switching circuit is rendered operative at the end of power line dropouts to cause the binary signal to have its "on" level if an enabling signal selectively developed by a circuit including a capacitor and a diode connected between the flip flop and capacitor during the presence of operating power is still stored in the capacitor.

3980959, Sep 14, 1976

Jun 3, 1974

5/476083

John Barrett George - Indianapolis IN

RCA Corporation - New York NY

H04B 132

325470

A tuner bandswitching system for a television receiver tuning system wherein a reset pulse generated at the completion of the selection of a channel to be received is utilized to determine the initial stable state of a series of bistable circuits and to provide a bandswitch reset pulse for use in establishing an initial voltage output from a voltage sweep generator utilized to scan a varactor tuned VHF tuner or a varactor tuner through one or more bands of frequencies. The bistable circuits control switching voltages supplied to the VHF tuner and the UHF tuner to provide for sequencing of the tuning system serially through, for example, the low VHF band, the high VHF band, and the UHF band until the appropriate band has been selected wherein the selected channel can be tuned. When the selected channel is tuned, a hold signal is developed. Data identifying the channel being received during a sweep through a given band is accumulated in a counter.

3984705, Oct 5, 1976

May 23, 1975

5/580679

John Barrett George - Indianapolis IN

RCA Corporation - New York NY

H01L 4104

310 81

A wide bandwidth, high gain ultrasonic frequency transducer drive circuit utilizes a relatively low voltage source of supply voltage. A first signal path from a source of drive signals includes circuitry resonant with the transducer for providing a relatively high signal voltage across this transducer. A second signal path from the source of drive signals includes a resonant circuit mutually coupled to the first resonant circuit for inducing signal energy into the first path and increasing the signal voltage across the transducer.

4386371, May 31, 1983

Jul 28, 1981

6/287561

John B. George - Indianapolis IN

RCA Corporation - New York NY

H04N 544, H04N 560

3581941

In a wired remote control for use with a television receiver, audio signals are coupled to a loudspeaker by a transformer providing electrical isolation. The remote control device comprises an oscillator applying a signal at a frequency above the audio range to the transformer and a rectifier at the transformer secondary converting the oscillator signal to a DC signal. That DC signal is selectively applied by a switch to an optocoupler which couples to a control device for controlling the audio source. A filter blocks the oscillator signal from the speaker. Additionally, the control device controls TV channel selection.