Ted Heske

• MS Physics, BS Electrical Engineering, BS Engineering Physics
• Managing Director at Nanolumens

Disclosed are embodiments of in-situ display monitoring and calibration systems and methods. An image acquisition system captures images of the viewing plane of the display. Captured images may then be processed to characterize various visual performance characteristics of the display. When not in use capturing images of the display, the image acqu...

Point-Of-Sale (POS) devices often include a variety of integrated devices, such as scanners, scales, integrated scanners with scales, card readers with on-screen signature capabilities, and the like. A scale (of integrated scanner with scale) in a typical installation often experiences mechanical vibrations coming from the operational environment....

An imaging bar code scanner operates in environments where it is constantly exposed to dirt, debris, and other contaminants. Some of this dirt, etc., will get deposited on one or more of the scanner's optical windows, and will necessarily degrade the quality of images acquired by that scanner. Degraded image quality, in turn, naturally degrades per...

Disclosed are embodiments of photo-luminescent display systems and photo-luminescent visual elements creating eye-catching displays of visual advertising or marketing messages that are very effective at generating interest, engagement, and loyalty in the viewing public. Photo-luminescent pigment containing visual elements are illuminated by one or...

An optical code scanner is presented that includes an improved user interface and an improved external computer interface. The user interface includes illumination devices that illuminate an air gap between the edges of a weigh plate and the top surface of the optical code scanner. The illumination devices provide guidance to the operator that allo...

A method of reading a plurality of bar codes during a scanning motion across a bar code scanner which enhances scanner operation. The method includes the steps of obtaining data from a detector in the bar code scanner, determining position information associated with the data, distinguishing data associated with each bar code using the position inf...

Disclosed is a Software Sanity Monitor for automatically detecting and remedying software lock-up conditions without user intervention. Users often refer to these conditions as “hangs” or “forever loops”. Although the Software Sanity Monitor uses the operating software's information, it is designed to execute independent of the operating system sof...

A system for collaborative bar code error detection and correction comprises a network of individual scanning entities for scanning bar-coded labels. Each individual scanning entity includes a scanning system having a decoder for decoding scanned bar code information and a printhead defect identifier for identifying printhead defects from scanned b...

A system for collaborative bar code error detection and correction comprises a network of individual scanning entities for scanning bar-coded labels. Each individual scanning entity includes a scanning system having a decoder for decoding scanned bar code information and a printhead defect identifier for identifying printhead defects from scanned b...

The present invention provides a system for correcting improperly printed or otherwise defective bar codes. The system scans a bar code and determines whether the scanned bar code data is correct. If the scanned bar code data is incorrect, the system uses the incorrect scanned bar code data to create a scan-based printhead model. The correct data i...

A method and apparatus are disclosed for scanning for a defective bar code having a plurality of alternating bars and spaces of varying widths. A bar code is scanned for providing a bar code signature which is used for measuring the bar and space width as multiples of a minimum width module. By detecting fractional width of adjoining bars and space...

A method and apparatus are provided for simulating a bar code. The bar code simulator includes a code emitter for generating a coded light beam which varies sequentially in intensity to correspond with bar code bars and spaces, and varies sequentially in duration to correspond with varying width of the bars and spaces. The flashing light beam so pr...

A comprehensive engineering guide that enables developers to adapt fuzzy logic code to their projects. Discussed is how to design, build, and fine-tune a fuzzy system using a systematic approach to the fuzzy engineering process. Each step is illustrated through in-depth, practical examples.

To improve the throughput of bridges in a multiple ring token ring network, External Copy Hardware (ECH) is provided for each source routing bridge to determine when a frame is to be copied as a candidate for forwarding to another ring by a given bridge. Each frame may contain a Routing Information Field (RIF), which the ECH searches for Segment Nu...

A method and circuit for controlling the contrast of a liquid crystal display (LCD). The circuit includes a switching regulator circuit which generates a negative voltage at the output thereof, with the switching regulator circuit having a feedback node therein and also having a voltage regulator with a control input therein. An injected current co...