Eric S Micko

US Patent:

6340816, Jan 22, 2002

Filed:

Feb 10, 1999

Appl. No.:

09/242243

Inventors:

Eric S. Micko - Rescue CA

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

G01J 510

US Classification:

2503383

Abstract:

A pyroelectric detector circuit comprises a pyroelectric sensor element connected to a load resistor and to an input of a buffer amplifier having a feedback path for multiplying the resistance of the load resistor at non-zero frequencies. This feedback enables the use of a smaller load resistor which is multiplied to produce a higher effective load resistance necessary for proper low frequency response of the detector circuit.

US Patent:

7042134, May 9, 2006

Filed:

Mar 30, 2004

Appl. No.:

10/812603

Inventors:

Eric Scott Micko - Rescue CA, US

Assignee:

Suren Systems, Ltd. - Hong Kong

International Classification:

H01L 41/08

US Classification:

31031601, 310317

Abstract:

A transconductance monitoring and amplifying circuit for a piezoelectric transducer that may be used in, e. g. , a motion detector system includes a FET, with the transducer (and, hence, the signal voltage reference) floating between the gate and source of the FET, as opposed to being connected to the common ground of the circuit. This permits the development of a larger detector signal and concomitantly the use of a relatively inexpensive FET instead of a relatively more expensive high impedance operational amplifier as must be used in conventional transconductance circuits.

US Patent:

7141910, Nov 28, 2006

Filed:

Aug 13, 2004

Appl. No.:

10/918080

Inventors:

Eric Scott Micko - Rescue CA, US

Assignee:

Suren Systems, Ltd. - Shatin

International Classification:

H01L 41/08

US Classification:

31031601, 310317

Abstract:

A transconductance monitoring and amplifying circuit for a piezoelectric transducer that may be used in, e. g. , a motion detector system includes a FET, with the transducer (and, hence, the signal voltage reference) floating between the gate and source of the FET, as opposed to being connected to the common ground of the circuit. This permits the development of a larger detector signal and concomitantly the use of a relatively inexpensive FET instead of a relatively more expensive high impedance operational amplifier as must be used in conventional transconductance circuits. The FET and transducer can be held in a single four-pin package.

US Patent:

7183912, Feb 27, 2007

Filed:

Apr 1, 2005

Appl. No.:

11/097904

Inventors:

Eric Scott Micko - Rescue CA, US

Assignee:

Suren Systems, Ltd. - Hong Kong

International Classification:

G08B 13/08

US Classification:

3405453, 340541, 3405452, 250342, 250349

Abstract:

A passive infrared sensor has two detector elements, each of which has a positive part and a negative part, with each detector element generating respective first and second signals. The signals are added together to render a “sum” signal and are also subtracted one from the other to render a “difference” signal, and a moving object is indicated only when the “sum” signal has a frequency different than the frequency of the “difference” signal.

US Patent:

7352107, Apr 1, 2008

Filed:

Dec 9, 2005

Appl. No.:

11/298541

Inventors:

Eric Scott Micko - Rescue CA, US

Assignee:

Suren Systems, Ltd. - Hong Kong

International Classification:

H01L 41/08

US Classification:

31031601, 310317

Abstract:

A transconductance monitoring and amplifying circuit for a piezoelectric transducer that may be used in, e. g. , a motion detector system includes a FET, with the transducer (and, hence, the signal voltage reference) floating between the gate and source of the FET, as opposed to being connected to the common ground of the circuit. This permits the development of a larger detector signal and concomitantly the use of a relatively inexpensive FET instead of a relatively more expensive high impedance operational amplifier as must be used in conventional transconductance circuits. The FET and transducer can be held in a single four-pin package. A discrete time sampled operational amplifier may also be used.

US Patent:

7399969, Jul 15, 2008

Filed:

Mar 14, 2003

Appl. No.:

10/388862

Inventors:

Eric Scott Micko - Rescue CA, US

Assignee:

Suren Systems, Ltd. - Hong Kong

International Classification:

G01J 5/08

US Classification:

250342

Abstract:

A passive infrared sensor uses two detectors having elements of different configurations such that each element outputs a respective frequency when an object moves in front of it. Based on the presence of two frequencies with similar peak and/or slope characteristics, a motion signal is output to, e. g. , activate an alarm. In another embodiment the detectors have plural elements with the elements of one detector being wired in a dimension that is orthogonal to the dimension in which the elements of the other detector are wired. The signals from the detectors are combined to determine motion and size of object. The detector elements can also be configured differently from each other as in the first embodiment, and the polarities of signals can be used to determine direction of motion.

US Patent:

7399970, Jul 15, 2008

Filed:

Jun 20, 2003

Appl. No.:

10/600314

Inventors:

Eric Scott Micko - Rescue CA, US

Assignee:

Suren Systems, Ltd.

International Classification:

G01J 5/08

US Classification:

250342

Abstract:

A passive infrared sensor uses two detectors having elements of different configurations such that each element outputs a respective frequency when an object moves in front of it. Based on the presence of two frequencies with similar peak and/or slope characteristics, a motion signal is output to, e. g. , activate an alarm. In another embodiment the detectors have plural elements with the elements of one detector being wired in a dimension that is orthogonal to the dimension in which the elements of the other detector are wired. The signals from the detectors are combined to determine motion and size of object. The detector elements can also be configured differently from each other as in the first embodiment, and the polarities of signals can be used to determine direction of motion. In yet another embodiment the detectors can be of the same size but have optics of different focal lengths.

US Patent:

7579595, Aug 25, 2009

Filed:

Sep 11, 2007

Appl. No.:

11/853220

Inventors:

Eric Scott Micko - Rescue CA, US

Assignee:

Suren Systems, Ltd. - Hong Kong

International Classification:

G01J 5/00

US Classification:

2503383

Abstract:

A passive infrared sensor has two or more element arrays, each consisting of positive polarity and negative polarity elements. The signals from the arrays are both summed together and subtracted from each other, and if either the sum or difference signal exceeds a threshold, detection is indicated.