Psc Inc.

Other

Psc Scanning, Inc.

Bae Systems Controls Inc.

Raymond J Boyd

Edward C Bremer

Stephen Patrick Deloge

Brad R Reddersen

Chay La

Chay K La

Shane P Cooper

Ilya Zaverukha

William Gehm

Glenn T Diego

Robert J Kunz

Clive A Morris

Stephen L Pero

A pressure sensing system includes a pressure transducer, a pressure manifold, and a heater assembly. The pressure transducer is configured to measure pressures at one or more locations of a vehicle engine. The pressure manifold is configured to cover a face of the pressure transducer and provide an interface for transferring air or gas generated at the one or more locations of the vehicle engine. The heater assembly is configured to heat one or more portions of the pressure transducer and one or more portions of the pressure manifold and maintain a temperature of each of the pressure transducer and the pressure manifold above a predetermined temperature level.

Pressure sensing system with heater assembly

A multi-function optical reader comprises an photosensor, such as a charge-device (CCD), and signal conditioning and processing circuitry including separate channels for handling data in different formats. A bar code processing channel digitizes the scan signal according to light and dark features using a first-derivative technique, and an OMR processing channel uses an adaptive threshold to adapt to different light conditions and provide a boundary line for digitizing light and dark features of the target scan line. A feature measurement circuit measures the widths of the light and dark regions as derived by the separate processing channels, and provides the feature measurements to a decoding system or host terminal processor. The scan rate of the optical reader can be adjusted according to the data format to be read or the level of ambient light, to avoid saturation. The optical reader can provide multiple depth-of-field zones, both internal and external to an optical reader housing. The optical reader may provide for image capture and optical character recognition.

Optical reader with selectable processing characteristics for reading data in multiple formats

A bar code scanner includes aseparate transmitter and receiver, each being able to ultrasonically transmit and receive data, respectively. The receiver transmits an acknowledgement signal when a protocol is received, and sends the acknowledgement signal to the transmitter which, unless it receives the acknowledgement signal, will retransmit the protocol a predetermined number of times. The transmitter includes a receiver which monitors an ultrasonic frequency band for a time period in which transmission by the transmitter is not allowed. The time period corresponds to a time when another ultrasonic signal in the ultrasonic frequency band is detected by the receiver of the transmitter. Transmission by the transmitter is allowed as soon as the another ultrasonic signal is no longer detected by the receiver of the transmitter.

Bar code reading and data collection unit with ultrasonic wireless data

A digitizer for a barcode scanner includes an amplifier and a comparator. The amplifier receives a feedback signal and a differentiated return signal on a first port, and a reference voltage signal on a second port. Based on a difference between voltages on the first and second ports, the amplifier outputs an output signal, which is limited between a maximum voltage value and a minimum voltage value. The output signal is delayed in phase, and the phase-delayed signal is input to a first port of a comparator, while the undelayed output signal is input to a second port of the comparator. Based on a comparison of the voltages on the first and second ports of the comparator, the feedback signal having one of a first voltage value and a second voltage value is obtained.

Bar code digitizer including a voltage comparator

A light beam, which scans in opposite directions across a bar code, is controlled in velocity and scan angle by monitoring the voltage across a winding of a motor, such as one of the phase windings of a two phase stepper motor, which causes the beam to scan across a field of view where the bar code is located. In order to enable the winding, which carries current for driving the motor, circuitry that inhibits the voltage from inductive generation (the back EMF) into the winding during periods when the drive current is applied to the motor. The drive current is applied in pulses, and preferably in groups of pulses, which groups recur periodically. In one embodiment of the invention, which utilizes a motor with two phase windings, the groups of pulses are applied alternately to different ones of the windings and the voltage due to inductive generation is derived from one of these windings during the time period where the pulses are applied to the other winding. In another embodiment, a motor having a single winding is used. Here, the inductively generated voltage is derived during an interval between successive drive pulses. The peak value of the inductive component is proportional to scan angle and beam velocity and is derived for use in a programmed microprocessor that varies the duration of the drive pulses in order to maintain the beam velocity and scan angle at preset, desired values.

Motor control system especially for control of an optical scanner

A bar code scanner includes a separate transmitter and receiver, each being able to ultrasonically transmit and receive data, respectively. The receiver transmits an acknowledgement signal when a protocol is received, and sends the acknowledgement signal to the transmitter which, unless it receives the acknowledgement signal, will retransmit the protocol a predetermined number of times. The transmitter includes a receiver which monitors an ultrasonic frequency band for a time period in which transmission by the transmitter is not allowed. The time period corresponds to a time when another ultrasonic signal in the ultrasonic frequency band is detected by the receiver of the transmitter. Transmission by the transmitter is allowed as soon as the another ultrasonic signal is no longer detected by the receiver of the transmitter.

Foldable, lighted hand mirror

Illuminated mirror case

Lighted compact

Lighted and foldable hand mirror

A lighted hand mirror includes a case member having a battery, electric lights and a switch therein. Pivotally connected to the case member is a cover member of complementary peripheral configuration which carries a mirror thereon and light diffusing means adjacent thereto which overlies the electric lights when the cover is in place over the case member. A cam carried by the hinge between the case and cover members engages the switch to turn the same on or off. A tab extends from the cam to allow it to be manually and selectively pivoted between the on and off positions.

Lighted hand mirror

A motor driven cup member is mounted on a support structure for rotation about a vertical axis. The support structure also houses and supports the motor and the power supply for the motor. The cup is divided into two sections, the upper section including a brush element lining the interior wall thereof and the lower section being adapted to contain a supply of nail polish remover solution. An electric switch supported by the support structure is operated with one hand while the fingers of the other hand are inserted, one at a time, into the cup to remove the nail polish from the nails thereof. A cover adapted to enclose the support structure includes a seal which seals against the top of the cup thereby preventing evaporation of the solution.

Nail polish remover

A lighted compact has a bottom case member into which are mounted standard sized compact powders. A cover member and an intermediate member both of which have a configuration complementary to the bottom case member are hinged to the bottom case member. Mounted within the inside of the cover member is a battery, a switch and a pair of electric lights. The intermediate member, which covers the battery, lights and switch, includes a mirror and light diffusers. The hinge of the bottom case member includes a cam surface which is adapted to engage the switch of the cover member so that the lights are turned on when the compact is opened and are turned off when the compact is closed.

Growing community of inventors

Bloomfield, NY, United States of America

Raymond J Boyd