Terry B Zbinden

45674280, Jan 28, 1986

Nov 26, 1984

6/675050

Terry B. Zbinden - Maple Grove MN

Sperry Corporation - New York NY

H05K 100
G01R 1512

324 73PC

A first sensor for the detection of dielectric failure (by burning) within a multilayer printed circuit assembly comprises an isolated conductive layer. This first sensor is connected by a first diode to a single wire which also connects a second, temperature, sensor via a second diode (system ground is a return). A multiplicity, nominally 16, of such single wire connected sensor pairs are selectable in accordance with an externally (microprocessor) furnished address. During a first time period, an externally (microprocessor) selected interrogation of temperature causes a first, positive, voltage bias to be applied to the selected sensor pair resulting in a current linear with temperature (over the range of 0. degree. C. to 100. degree. C. ) in the second sensor. This current is transformed to voltage, offset by 273. degree.

43939210, Jul 19, 1983

Sep 13, 1982

6/397954

Terry B. Zbinden - Maple Grove MN

Sperry Corporation - New York NY

G05D 1500

165 40

An electronic circuit controls a non-linear electromechanical valve in order that the temperature of approximately 25 gallons of coolant water within a reservoir may be maintained within +2. 8. degree. C. to -0. degree. C. of a set point temperature from 35. degree. F. to 100. degree. F. The valve regulates circulation of such coolant within a secondary cooling loop incorporating a non-linear heat exchanger for thermal exchange with building water flowing from 20 to 30 gallons per minute. The reservoir coolant water is subject to an essentially instantaneously variable thermal load of 0 to 20 kilowatts due to circulation through logic modules in a primary coolant loop. The electromechanical valve control circuit receives an external set point temperature signal, and a reservoir coolant temperature signal which is offset in conversion from degrees Kelvin to degrees Centigrade. The electromechanical valve control circuit employs a first feedback signal from a position potentiometer mechanically linked to valve position, which signal is compensated in a breakpoint amplifier to account for valve and heat exchanger non-linearities in the secondary cooling loop. A second feedback signal from a tachometer, mechanically linked to a motor driving the valve through a 1000:1 gear reduction, is utilized to impart circuit stability.

45041563, Mar 12, 1985

Jul 6, 1982

6/395516

Thomas P. Currie - St. Paul MN
Terry B. Zbinden - Maple Grove MN

Sperry Corporation - New York NY

G01K 1300
G01N 2518

374 45

A cooling system monitoring assembly incorporating a heat generating element for simulating heat generation of components in the system, together with heat sensing element responsive to the heat generating element for providing temperature signals when the temperature of the heat generating element is sensed to have exceeded a predetermined threshold is described, thereby indicating the level of temperature fault. A support assembly is described for supporting the heat generating element in the heat transfer relationship to the monitored cooling system, while supporting the heat sensing element. A system for monitoring a plurality of subassemblies associated with the monitored cooling system and identifying the location of detected temperature fault condition is also described.

46545999, Mar 31, 1987

Jul 5, 1985

6/751718

Terry B. Zbinden - Maple Grove MN
Richard D. Marthaler - Blaine MN

Sperry Corporation - New York NY

H03K 300

328 62

A system for and a method of generating a four phase clock signal is disclosed. The system includes an oscillator circuit that generates a clocking signal of frequency F. A flip-flop, under control of a Master Clear signal, establishes the first stage of a shift register in an active state while the clocking signal drives the shaft register to serial, end-around, shift the active state through the shift register. The parallel outputs of the shift register are coupled to respectively associated pulse generators which are also triggered by the clock signal to emit the four phase clock signal therefrom. The method ensures that the first phase signal is always the first signal to be emitted from the system while compatible semiconductor circuitry is used throughout and is operated at or near the frequency limit of the semiconductor circuitry used.

45771499, Mar 18, 1986

Nov 26, 1984

6/675051

Terry B. Zbinden - Maple Grove MN

Sperry Corporation - New York NY

G01R 3114
G01N 2500
G08B 2610

324 73PC

A first sensor for the detection of dielectric failure (by burning) within a multilayer printed circuit assembly comprises an isolated conductive layer. This first sensor is connected by a first diode to a single wire which also connects a second, temperature, sensor via a second diode (system ground is a return). A number, nominally 16, of such single wire connected sensor pairs are selectable in accordance with an externally (microprocessor) furnished address. During a first time period, an externally (microprocessor) selected interrogation of temperature causes a first, positive, voltage bias to be applied to the selected sensor pair resulting in a current linear with temperature (over the range of 0. degree. C. to 100. degree. C. ) in the second sensor. This current is transformed to voltage, offset by 273. degree.

42850630, Aug 18, 1981

Jun 8, 1979

6/047518

Terry B. Zbinden - Maple Grove MN

Sperry Corporation - New York NY

H04N 504
H04L 700

375106

Apparatus for distributing evenly delayed digital signals to a plurality of separate physical locations in which each location utilizes one particular digital signal. At each physical location an apparatus for adjusting the timing delay of the digital signal is provided so that all physical locations may utilize the digital signals, as for example, a pulse from a timing chain, at the same instant of time with respect to each other. The apparatus for adjusting the timing delay at each location includes a receiver for accepting the digital signal. After the receiver, the digital signal is routed to both a delay line capable of providing a plurality of time delays and to a selector having an input for the received digital signal and for each one of the time delays provided by the delay line. Finally, each selector provides a means of selecting just one of the signals to be utilized at that physical location. The selection process can then be adjusted manually to assure an evenly delayed digital signal throughout all physical locations.

45047820, Mar 12, 1985

Jul 6, 1982

6/395511

Terry B. Zbinden - Maple Grove MN

Sperry Corporation - New York NY

G01R 3112

324 73PC

A first sensor for the detection of dielectric failure (by burning) within a multilayer printed circuit assembly comprises an isolated conductive layer. This first sensor is connected by a first diode to a single wire which also connects a second, temperature, sensor via a second diode (system ground is a return). A multiplicity, nominally 16, of such single wire connected sensor pairs are selectable in accordance with an externally (microprocessor) furnished address. During a first time period, an externally (microprocessor) selected interrogation of temperature causes a first, positive, voltage bias to be applied to the selected sensor pair resulting in a current linear with temperature (over the range of 0. degree. C. to 100. degree. C. ) in the second sensor. This current is transformed to voltage, offset by 273. degree.

50935879, Mar 3, 1992

Oct 16, 1990

7/598274

Terry B. Zbinden - Maple Grove MN

Unisys Corporation - Blue Bell PA

H03K 19092
H03K 1756

307475

ECL bus driver circuits for multi-driver net use are provided with a disable transistor that has its emitter coupled to the emitter of the pull-down transistor of the driver so that when the disable circuit of a driver is activated, the coupled pull-down transistor is not able to sustain current flow through its collector-emitter path, and when the disable transistor is turned off, the pull-down transistor enables the drive circuit to function in its normal manner.