Teradyne

About: Teradyne is a company organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Signal & Automatic test equipment. The organization has 828 authors who have published 999 publications receiving 15695 citations.

Flexible optical interconnection system

Abstract: An optical connector system assembled from modular components. These components include connector modules that position ferrules for mating and providing fine alignment to fibers. The modules are assembled to support members to form connectors of various sizes. Mounting modules are attached to the support members. Various shaped mounting modules are provided, allowing connectors to be assembled for various configurations, such as a matrix configuration, a parallel board-to-board configuration or a panel mount configuration.

Lighting arrangement for automated optical inspection system

Abstract: An optical inspection system with an improved illumination system. The improved illumination system used to illustrate the invention has a base formed from a printed circuit board. Substrates for mounting lighting elements, which are exemplified by light emitting diodes, are formed also on printed circuit boards. These circuit boards have serrated edges and the diodes are mounted to the serrations. This configuration allows the light emitting elements to be focused on the focal point. Also in the exemplary illumination system, the light emitting elements have different beam widths so that variations in the illumination intensity as a function of elevation angle are reduced.

Techniques for controlling movement of a circuit board module along a card cage slot

Abstract: A control system indicates whether a module should be inserted into a module holder. The control system includes a sensor which is configured to attach to one of a module and the module holder. The sensor is further configured to (i) read an identifier of an element attached to the other of the module and the module holder when the module begins insertion into the module holder and (ii) provide a sensor signal in response to reading the identifier. The sensor signal denotes the identifier. The control system further includes a controller which couples to the sensor. The controller is configured to receive the sensor signal from the sensor and output a control signal based on the sensor signal. The control signal indicates whether the module is authorized to substantially insert into the module holder.

Analog clock module

Abstract: An analog clock apparatus is disclosed including a digital clock source for producing a digital waveform of a predetermined frequency and a direct-digital-synthesizer. The synthesizer has an input to receive the digital waveform and is operative to generate a resultant analog waveform. Prediction logic is coupled to the digital clock source and the synthesizer for determining the relative phase relationships between the digital waveform and the analog waveform. The prediction logic is responsive to a prediction clock having a clock frequency approximating that of said digital clock source.

Automated SystemC to VHDL translation in hardware/software codesign

Abstract: Recent advances in electronic circuit technology have enabled the creation of system-on-chip, which comprises both hardware and software components. Codesign takes advantage of this opportunity by considering both components as a whole throughout the design process. While an increasing number of tools are being offered, most concentrate on the simulation of systems, with little or no support for their implementation. This paper describes a translation algorithm developed to act as a bridge between simulation and implementation by translating SystemC code to VHDL.