Abstract: A tester for testing a digital device. The tester includes a plurality of time measurement units to measure transition timing values of output data of each output pin of the digital device in each test cycle. A plurality of result operations units performs real-time arithmetic operations on the measured transition timing values to produce a pass/fail result and additional test results. A plurality of result accumulators stores the pass/fail result and a number of selected test results. And a capture/analysis engine captures and analyzes the pass/fail result and the selected results to provide comprehensive test performance of the digital device.

Abstract: A weighting device utilizes soft reliability values and class weighting factors to detect errors in digitized information. The soft reliability values can be provided by a decoder that processes the information according to a predetermined coding scheme. Bits representing the encoded information are classified accorded to classes defined by a bit sensitivity analysis. The bit sensitivity analysis can be based on subjective and/or objective criteria. As incoming bits are received by the weighting device, they are classified and class reliability values are computed for each class based on the soft reliability values. The class reliability values are then weighted to produce weighted class reliability values. Error concealment algorithms, coding rate determination, and coding rate requests can be activated based on the weighted class reliability values.

Abstract: A weighting device utilizes soft reliability values and class weighting factors to detect errors in digitized information. The soft reliability values can be provided by a decoder that processes the information according to a predetermined coding scheme. Bits representing the encoded information are classified accorded to classes defined by a bit sensitivity analysis. The bit sensitivity analysis can be based on subjective and/or objective criteria. As incoming bits are received by the weighting device, they are classified and class reliability values are computed for each class based on the soft reliability values. The class reliability values are then weighted to produce weighted class reliability values. Error concealment algorithms, coding rate determination, and coding rate requests can be activated based on the weighted class reliability values.

Abstract: A tester for testing a digital device. The tester includes a plurality of time measurement units to measure transition timing values of output data of each output pin of the digital device in each test cycle. A plurality of result operations units performs real-time arithmetic operations on the measured transition timing values to produce a pass/fail result and additional test results. A plurality of result accumulators stores the pass/fail result and a number of selected test results. And a capture/analysis engine captures and analyzes the pass/fail result and the selected results to provide comprehensive test performance of the digital device.

Abstract: The present invention of a Bubbling Liquid Display includes a variable-pressure air source which injects air into a liquid within a panel at variable flow rates into an number of individual chambers to create a unique bubbling pattern for each chamber which includes large bubbles which move upwards within the fluid in the display, and smaller bubbles which move downwards within the fluid in the display. The display may be drained a single chamber at a time, eliminating the need to completely drain the display for maintenance, and also is substantially leak-proof, despite being tipped or knocked over. The display incorporates a fluid which resists evaporation, corrosion, and algae formation, despite being constantly bubbled or exposed to sunlight or other sources of heat, and which may be effectively recirculated through the display. The display is also adaptable to retrofit vending machines, as well as a variety of other useful items, such as point-of-purchase displays and wall-hangings.

Abstract: A method and apparatus for detecting whether a remote party has added a secondary telephone destination to a telephone call, for example through the activation of three-way calling service, conference calling or two lining bridging, by identifying an echo characteristic to the telephone connection between the local and the remote telephone and monitoring the echo characteristic to determine whether there is a significant change. The addition of a secondary telephone destination can be verified by continuing to monitor the echo characteristic to determine whether it has returned to its original value.