Floyd W Looschen

42715105, Jun 2, 1981

Jul 19, 1979

6/058907

Floyd W. Looschen - Laguna Beach CA

Burroughs Corporation - Detroit MI

H04J 312
H04L 2545

370110

Shift-register transmitting means for use in a serial type data transmission channel employing a plurality of coaxial lines for communicating digital data from the transmitting means to a receiving means. The transmitter means comprises a plurality of shift registers and associated transmitter logic which provide for the transmission of data messages and message identifying data on a first coaxial line and the transmission of a clock on a second coaxial line in a manner such that the transmitted clock is transmitted at a first repetition rate when a message is being transmitted and at a second repetition rate when message identifying data is being transmitted. The transmitter logic operates in conjunction with the shift registers for selectively shifting applied data in opposite directions so as to provide for the expeditious serial application of message and message identifying data to the first coaxial line during separate time periods.

43331769, Jun 1, 1982

Jan 21, 1980

6/113905

Floyd W. Looschen - Laguna Beach CA

Burroughs Corporation - Detroit MI

H04J 306

370 84

A serial-type data transmission channel employing a transmitter and a receiver and a plurality of coaxial cables interconnected therebetween with optical coupling being provided at the receiver. One of the coaxial cables is used to transmit data comprised of messages interposed with identifying data indicating whether a next following message is a data message or a control message. Another coaxial cable is used to transmit a clock at one repetition rate when a message is being transmitted and at another repetition rate when identifying data is being transmitted. The receiver employs the received clock to extract the message and identifying data from the received signals, and to also provide indications of message availability and of the type of message received.

42296218, Oct 21, 1980

Mar 13, 1978

5/885945

Floyd W. Looschen - Laguna Beach CA

H04J 306

370 84

Transmitting means for use in a serial type data transmission channel employing a plurality of coaxial lines for communicating digital data from the transmitting means to a receiving means. The transmitter means provides for transmission of data messages and message identifying data on a first coaxial line and the transmission of a clock on a second coaxial line. The transmitted clock is transmitted at a first repetition rate when a message is being transmitted and at a second repetition rate when message identifying data is being transmitted. The transmitting means employs shift register means capable of selectively shifting applied data in opposite directions so as to provide for the expeditious serial outputting of message and message identifying data to the first coaxial line during separate time periods.

40830101, Apr 4, 1978

Nov 1, 1976

5/737730

Floyd William Looschen - Laguna Beach CA

Burroughs Corporation - Detroit MI

H04L 2540

325321

An improved differential receiver circuit for use in a direct-coupled, binary serial digital data transmission channel. The receiver circuit comprises a pair of differential amplifiers having a cross-coupled biasing arrangement for providing thresholds for a received signal without degrading the high common mode capability and high impedance of the amplifiers.

40830055, Apr 4, 1978

Nov 1, 1976

5/737732

Floyd William Looschen - Laguna Beach CA

Burroughs Corporation - Detroit MI

H04L 300

325 38A

A three-level, direct-coupled binary serial digital data transmission channel using a shielded twisted wire cable as the transmission line. The binary data to be transmitted is encoded into a self-clocking three-level code requiring only one transition for each bit transmitted. A balanced direct-coupled three-state differential driving circuit is used as the transmission line driver, and a balanced, direct-coupled three-level differential receiver circuit is used as the transmission line receiver.

42257522, Sep 30, 1980

Mar 3, 1978

5/883302

Floyd W. Looschen - Laguna Beach CA

Burroughs Corporation - Detroit MI

H04J 306

370 1

A serial-type data transmission channel employing a transmitter and a receiver and a plurality of coaxial cables interconnected therebetween with optical coupling being provided at the receiver. One of the coaxial cables is used to transmit data comprised of messages interposed with identifying data indicating whether a next following message is a data message or a control message. Another coaxial cable is used to transmit a clock at one repetition rate when a message is being transmitted and at another repetition rate when identifying data is being transmitted. The receiver employs the received clock to extract the message and identifying data from the received signals, and to also provide indications of message availability and of the type of message received.

46738118, Jun 16, 1987

Dec 5, 1985

6/804965

Floyd W. Looschen - Laguna Beach CA

Xerox Corporation - Stamford CT

H04N 110

250235

A variable threshold scan detector for use in raster output scan (ROS) systems, whereby the input scanning beam intensity is continually monitored and the threshold is set at a percentage of the signal value. Feedback from a peak detector circuit adjusts the threshold voltage to approximately 55 percent of the peak voltage. When the signal voltage exceeds the threshold voltage, the crossover circuit is enabled and a scan pulse is generated when crossover is detected. The scan detector ignores noise signals below the threshold voltage.

40978591, Jun 27, 1978

Nov 1, 1976

5/737783

Floyd William Looschen - Laguna Beach CA

Burroughs Corporation - Detroit MI

H03K 1300

340347DD

Improved three-level to binary decoding means for use in decoding a three-level digital data signal received from a transmission line in a serial digital data transmission channel. Uniform loading and controlled timing of the decoding are provided.