Abstract: An item price notification system automatically interrogates product labels to determine product, pricing, and other unique data. The system uses a radio frequency (RF) radio frequency transceiver to generate an RF field to communicate with radio frequency identification (radio frequency transponders) transponders mountable to product display shelves. The radio frequency transponders contain information such as pricing information, nutritional information, and other unique data about the various products. As the RF radio frequency transceiver moves into proximity to various radio frequency transponders for a variety of products, the unique data are received by the RF radio frequency transceiver and are displayed for the user. The displayed data allows a user to make comparisons between products, and the system display and memory allow a user to store the unique data for those products and to make instant and cumulative product, price, and other comparisons.

Abstract: Methods and arrangements are provided to efficiently use 3-D vision systems to measure selected features of objects that are semi-constrained in compartmented trays having a uniform geometric arrangement. The methods are particularly well suited for optimizing the 3-D measurement of leads on integrated circuit devices which are packaged in trays. For obtaining the three-dimensional data, a multi-pocketed tray is provided with tray pockets arranged in rows and columns. Corresponding sides of the multiple parts or devices in a row or column are scanned sequentially with at least one three-dimensional sensor. This scanning procedure is repeated for all rows and columns containing sides of the devices from which data is to be obtained. The devices can be first aligned by applying directional vibration to the tray to drive all the parts or devices to the same corner or side of the respective pockets.

Abstract: Methods and arrangements are provided to efficiently use 3-D vision systems to measure selected features of objects that are semi-constrained in compartmented trays having a uniform geometric arrangement. The methods are particularly well suited for optimizing the 3-D measurement of leads on integrated circuit devices which are packaged in trays.

Abstract: An interface for controllably reading out color imagery data from a video frame store to a high resolution color monitor, without the need for traversing a communication path through the host computer's signal processing link, includes a programmable color correction mechanism stored in a plurality of look-up table memories, representative of color correction values associated with the primary colors of the video image. When driving the color display with the video image contents of the frame store, the contents of the frame store are read out on a sequential pixel basis and applied as address inputs to the look-up table memories. In response to each frame store imagery data input, each of the look-up tables outputs a color correction code.