Kenneth Richard Hackett
Engineers at Bella Vis Ln, Boulder, CO

5926210, Jul 20, 1999

Mar 30, 1998

9/050438

Kenneth R. Hackett - Boulder CO
Kenneth G. Van Horn - Boulder CO
William H. Wikman - Westminster CO

Kalatel, Inc. - Corvallis OR

H04N 718

348158

The present invention discloses a security system for monitoring a mobile, ground-based platform via image acquisition in the form of electrical pixel signals. In one embodiment, the system includes a plurality of cameras attached to the platform and arranged to capture images of zones associated with the interior of the platform or with its exterior and current ambient environmental surroundings. Storage media is located on the platform for storing images captured in the form of electrical signals by the cameras. The system is configured for transferring images to the storage media and to at least one remote location wherein the images are viewable at the remote location. The system may advantageously employ wireless transmission to transfer images to a remote location. The images may be captured responsive to an input such as from a panic button. The system may also employ removable storage media for storing images on the platform.

4367458, Jan 4, 1983

Aug 29, 1980

6/182497

Kenneth R. Hackett - Boulder CO

Ultrak Inc. - Broomfield CO

G08B 108, G08B 2600

340539

An ultrasonic communication system capable of wireless installation and supervised operation is achieved by communicating each information bit as two distinct ultrasonic frequencies separated in frequency enough to assure that the signal strength of both transmissions will not be in a deep null at the receiver location at the same time. The transmissions can be coded with a format that recognizes the correct data transmission even if reception of one frequency is lost. By use of transponders and other auxiliary units with periodic polling, supervised operation throughout a building can be maintained with events such as intrusion, fire or emergency as well as failures of particular units of the system reported.

RE30288, May 27, 1980

Dec 16, 1977

5/861214

Kenneth R. Hackett - Boulder CO

Pittway Corporation - Northbrook IL

G01S 902, G08B 1324

343 5PD

An ultrasonic or microwave intrusion detection system uses a transmitter having one or more transducers or antennas for maintaining wave fields in the area to be protected and fed by one or more transducers or antennas which detects echo reflections of the energy from within the area. The receiver employs two mixers energized to be mixed with the echo signals and a portion of the energy from the transmitter, one of the mixers receiving such transmitter energy with 90. degree. phase shift relative to the other mixer. The outputs of the two mixers thus are in quadrature phase relative to each other and define a rotating vector which contains the information relating to the echo signals. The product of these quadrature signals obtained by multiplying them together is processed continuously to obtain target information in the presence of substantially larger clutter return signals and other interference. The multiplication of the two quadrature signals to obtain cancellation of the clutter return signals and enhancement of the target signals is achieved without further phase shift requirements by differentiating one of the quadrature signals before it is multiplied with the other quadrature signal.

4042845, Aug 16, 1977

Mar 25, 1976

5/670275

Kenneth R. Hackett - Boulder CO

Sontrix Division of Pittway Corporation - Boulder CO

H01L 4104

310322

A transducer assembly capable of radiating and detecting energy over a controlled beam width around a selected axis is formed by a piezoelectric element mounted in a cylindrical resonant cavity defined by a Helmholtz chamber. The resonant chamber has an energy emitting end wall positioned normal to the selected axis and is arranged to have a single aperture ring which emits energy symmetrically around the axis at a predetermined radial offset distance therefrom. The energy emitted from the chamber through the end wall sums to form along and around the selected axis a beam-like pattern of controlled width, the beam width being controllable as a function of the offset distance and the energy wavelength. In one embodiment, circular apertures which operate to emit spherical radiation patterns are formed in the chamber end wall. In another embodiment, an annular aperture is formed in the chamber end wall concentric with the selected axis.

4360905, Nov 23, 1982

Apr 16, 1979

6/030554

Kenneth R. Hackett - Boulder CO

Pittway Corporation - Northbrook IL

G08B 1316

367 94

An ultrasonic intrusion alarm system has a central control unit and a plurality of remote processors connected to the control unit by means of a single cable having two conductors which need not be shielded. All signals necessary for the proper operation of the system flow along the cable. The control unit provides a modulated ultrasonic signal and DC power to the remote processors along the cable, and each remote processor sends back an alarm along the cable when an intrusion is detected. The signal from each receiving transducer is applied to circuitry in an associated remote processor which detects the presence of doppler shifted signals representative of a moving object in the protected premises. The control unit includes processing circuitry for detecting signals on the cable which indicate that a remote processor has detected a moving object. The control unit further includes circuitry for applying the modulated signal to the cable in a manner which enhances the reliability and performance of the intrusion alarm system, including a novel switching modulator which is very efficient and wastes little energy.

4885568, Dec 5, 1989

Nov 21, 1988

7/273927

Kenneth R. Hackett - Boulder CO

Interactive Technologies, Inc. - North St. Paul MN

G08B 2600

340518

A time multiplexed integrated alarm contact for reporting detected alarm conditions to a system controller in a hardwired alarm system and wherein distinguishable binary frequencies are used for synchronizing/responding and for programming the contact. During programming, an identity code is written into an included shift register and non-volatile memory defining the system reporting interval and the contact's reporting interval within the system interval. Controller initiated synchronizing signals induce each contact's status transmission with or without resetting an alarm buffer and whereby redundant alarm reports may be obtained.

3986182, Oct 12, 1976

Jan 21, 1975

5/542695

Kenneth R. Hackett - Boulder CO

Sontrix, Inc. - Boulder CO

G08B 1316

340258A

An ultrasonic intrusion detection system having means for transmitting and receiving ultrasonic energy within a protected zone and generating an alarm when a moving object is present in the protected zone is supplemented to provide multiple independent response zones utilizing the same transmitter for all zones but individual receiver modules which can be added to the existing transmitter-receiver system to provide protection for additional independent zones with associated indicators for selectively indicating those zones which have been triggered by the presence of an intruder or other moving object.

4319349, Mar 9, 1982

Sep 29, 1978

5/947039

Kenneth R. Hackett - Boulder CO

Pittway Corporation - Northbrook IL

G01S 1304, G01S 1504, G08B 1316

367 94

Apparatus and method of processing in an ultrasonic alarm system to detect the doppler-shifted components which indicate the presence of an intruder. A master control applies to each of the transmitter transducers a signal which alternates between two frequencies at a modulation frequency. The output signal from the receiving transducer is synchronously detected and low pass filtered. The filtered signal is applied to electronics which respond to the presence of modulation frequency components in the filter output signal. A first embodiment utilizes a high-Q bandpass filter having a resonance frequency equal to the modulation frequency. In a second embodiment, the modulation frequency is used to effectively perform a correlation between the received signal and the modulation frequency.

4043686, Aug 23, 1977

Jun 3, 1976

5/692593

Kenneth R. Hackett - Boulder CO

Snotrix Division of Pittway Corporation - Boulder CO

F16C 1106

403 90

A ball joint for support of and orientation of a device in any direction stabilized against rotation on its own axis including means locking the ball in a selected position.

D245677, Sep 6, 1977

Mar 25, 1976

5/670276

Kenneth R. Hackett - Boulder CO

Sontrix Division of Pittway Corporation - Boulder CO

D1005

D10106