Scalable scatter/gather I/O testing tool
Granted: January 22, 2004
Application Number:
20040015755
Embodiments of the present invention generally provide a system and method for testing integrity of data transmitted to and from a target device through a data connection using a scatter/gather I/O dispatch method. In one embodiment, the method includes generating a data load on the data connection by repetitively writing test data patterns to the target device and reading data patterns from the target device using a scatter/gather I/O dispatch method, measuring data throughput to and…
Scalable asynchronous I/O testing tool
Granted: January 22, 2004
Application Number:
20040015761
Embodiments of the present invention generally provide a system and method for testing integrity of data transmitted to and from a target device through a data connection using an asynchronous I/O dispatch method. In one embodiment, the method includes generating a data load on the data connection by repetitively writing test data patterns to the target device and reading data patterns from the target device using an asynchronous I/O dispatch method, measuring data throughput to and from…
Scalable system testing tools
Granted: January 22, 2004
Application Number:
20040015762
Embodiments of the present invention generally provide a method for testing integrity of data transmitted to and from a target device through a data connection. In one embodiment, the method includes generating a data load on the data connection by repetitively writing test data patterns to the target device and reading data patterns from the target device, measuring data throughput to and from the target device while generating the data load, comparing the data patterns read from the…
Submount, pedestal, and bond wire assembly for a transistor outline package with reduced bond wire inductance
Granted: November 27, 2003
Application Number:
20030218923
The present invention relates generally to optoelectronic devices, and particularly to a submount, pedestal, and bond wire assembly for a transistor outline package. A bottom surface of the submount is connected to a top surface of the pedestal. Each bond wire in a bond wire set is connected to a position on the top surface of the submount, and to a position on the signal line. The signal line is positioned a first distance from the position on the top surface of the submount and a…
Circuit board having traces with distinct transmission impedances
Granted: November 20, 2003
Application Number:
20030214860
The present invention is an optoelectronic device including a circuit board with a plurality of signal traces, a first ground plane, and a second ground plane. The impedance of a signal trace is determined by which of the first ground plane and the second ground plane is closest to the signal trace. The area of the first ground plane coincident with a first signal trace is left intact in order to set the impedance of the first signal trace, by reference to the first ground plane. The…
Data rate compression device for cable television return path using bandpass puncturing
Granted: August 14, 2003
Application Number:
20030154495
An apparatus for and a method of transmitting analog return signals in a digital return path of a cable television system (CATV) is disclosed. In one embodiment, at a node of the CATV system, an analog CATV return signal is converted to a stream of digital samples at approximately 100 MHz. Signals outside of a desired frequency band are removed with a digital filter having predetermined filter coefficients. The resulting stream of digital samples is up-sampled to generate another stream…
System and method for protecting eye safety during operation of a fiber optic transceiver
Granted: July 10, 2003
Application Number:
20030128411
A single-chip integrated circuit, sometimes called a controller, controls operation of a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined locations…
Signal processing circuit for floating signal sources using positive feedback
Granted: March 20, 2003
Application Number:
20030052733
A signal processing circuit using positive feedback while keeping the open loop gain of the circuit less than 1 to avoid oscillation. The circuit includes a floating signal source, a low gain amplifier, a feedback element, and a second stage circuit. The floating signal source produces a voltage that is impressed across the feedback element by the feedback system. The feedback element processes the voltage into an output current. The output current is passed through an output current…
