Cincinnati Microwave, Inc.

Perimeter Technologies Incorporated

Other

Snowden Pencer, Inc.

Richard L Grimsley

Paul M Allen

Dale A Teets

Timothy A Coomer

Michael D Valentine

Gregory R Furnish

John R Fende

Steven N Carlisle

A system (,) for confining an animal (,) in an area (,) defined by a boundary signal. The system includes a transmitter (,A) to generate the boundary signal and an emitter such as a wire (,) to define area (,). The system also includes a receiver (,A;,A) to be carried on the animal's neck. The receiver includes three selectively monitored and orthogonally-positional antennas (,) to avoid missing a boundary signal. The receiver further includes code-detecting, duration monitoring and/or signal-strength circuitry (,) to control giving a shock to the animal. Further, the receiver is duty-cycled to conserve battery power (,). The shock is communicated via a conductive compliant tip (,) to reduce discomfort to the animal. The transmitter includes circuitry (,) to include a code in the boundary signal, and an isolation transformer (,) to protect the transmitter from energy strikes, such as lightning, at the emitter (,).

Electronic animal confinement system

A system (10) for confining an animal (18) in an area (16) defined by a boundary signal. The system includes a transmitter (22; 22A) to generate the boundary signal and an emitter such as a wire (20) to define area (16). The system also includes a receiver (26; 26A; 200; 200A) to be carried on the animal's neck. The receiver includes three selectively monitored and orthogonally-positional antennas (30, 32, 34; 202, 204, 206) to avoid missing a boundary signal. The receiver further includes code-detecting, duration monitoring and/or signal-strength circuitry (270) to control giving a shock to the animal. Further, the receiver is duty-cycled to conserve battery power (56). The shock is communicated via a conductive compliant tip (532) to reduce discomfort to the animal. The transmitter includes circuitry (64) to include a code in the boundary signal, and an isolation transformer (102) to protect the transmitter from energy strikes, such as lightning, at the emitter (20).

Receiver for an electronic animal confinement system

Insufflation gas is introduced into a body cavity to be inflated. The gas flow is stopped, and the pressure in the body cavity is measured at plural, discrete intervals of time. Pressure reading values are stored in memory for a predetermined number n of the most recent pressure reading values. These stored pressure reading values are compared to one another to determine the pressure differential between the highest and lowest pressure values. New pressure readings are continually made at the time intervals, and the new pressure reading values replace the oldest pressure readings such that the most recent pressure reading values are stored in memory. Pressure measurements are continued if the maximum pressure differential in the predetermined number n of the most recent stored pressure reading values is less than the predetermined pressure differential. However, if the differential is less than a predetermined pressure differential, then it is determined that the pressure oscillations in the body cavity have subsided, and the nominal body cavity pressure is determined. If the measured pressure is below a preset target level of insufflation, additional gas may be introduced into the body cavity, and then pressure measurements may be resumed.

Surgical insufflation system with improved determination of body cavity

A radar warning receiver is provided having an alarm indicator responsive to an electronic switch, the switch being activated and energizing the alarm in response to an alarm signal indicating the presence of a police radar signal, the switch being deactivated and de-energizing the alarm in response to a mute signal occurring during the occurrence of the alarm signal, the switch remaining deactivated until the alarm condition signal terminates and subsequently reoccurs.

Police radar warning receiver with mute function

A compact police radar warning receiver is provided having an antenna in which all of the mixer and oscillator components are mounted to one side of the antenna enabling the exterior wall of the side opposite thereto to be constructed substantially flat and thereby function as one of the exterior walls of the housing. The antenna is further provided with an improved microwave oscillator, an impedance transformer and non-adjustably positioned tuning pins.

Police radar warning receiver

A radar warning receiver includes means for distinguishing pulsed or continuous fixed frequency radar signals emanating from a radar transmitter from variable frequency signals such as those radiated from a nearby superhomodyne receiver. This invention includes a superheterodyne receiver having a local oscillator that is repeatedly varied in frequency over a range of frequencies sufficiently large and at a rate fast enough to cause any signals within an input range of frequencies to be detected by a sensitive, limited bandwidth detector. If an input signal is fixed in frequency, that signal will be detected at the same time during successive sweeps of the local oscillator, and a correlated output will be generated; otherwise, an uncorrelated output will be generated. If the number of correlated outputs equal or exceed the uncorrelated outputs detected, then an alarm is provided. Even when the receiver of this invention is receiving signals from a superhomodyne receiver, if a fixed frequency signal is detected for a predetermined number of consecutive sweeps of the local oscillator, then an alarm, indicating the presence of that fixed frequency signal, is again provided.

Growing community of inventors

Cincinnati, OH, United States of America

Richard L Grimsley