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| Application No. | Application Title | Issue Date |
| 20100166173 | SUBSCRIBER LINE INTERFACE CIRCUITRY WITH INTEGRATED SERIAL INTERFACES Methods and apparatus for communicating include coupling first and second devices with a first unidirectional data line, a second unidirectional data line, and a clock line. Frames of data are serially communicated between the first and second devices using the first an... | 07/01/2010 |
| 20100142699 | METHOD, SYSTEM, AND APPARATUS FOR A DIFFERENTIAL TRANSFORMER-FREE HYBRID CIRCUIT A differential transformer-free hybrid circuit includes a first amplifier configured to receive a first signal from a transmitter and output the first signal to a telephone loop, and a second amplifier configured to receive a second signal from the telephone loop and ou... | 06/10/2010 |
| 20080043998 | Line interface for telephone A line interface includes a transmit path for an electrical signal, a receive path for an electrical signal, and a reference path coupled from the output of the transmit path to the receive path. The reference path including a filter for matching the impedance of the te... | 02/21/2008 |
| 20070135086 | Providing detailed information on powered device in system for supplying power over communication link A powered device (PD) configured for receiving power over a communication link, such as an Ethernet link, has a power interface controller for implementing a power supply protocol. The power interface controller acquires multiple pieces of PD information representing mu... | 06/14/2007 |
| 20060067517 | Multiple path hybrid for subscriber line services A hybrid with a plurality of selectable hybrid input paths each having an associated hybrid input path filter is provided. The hybrid includes a plurality of selectable receive paths each having an associated receive path filter. The hybrid further includes a hybrid out... | 03/30/2006 |
| 20060067516 | Dual transformer hybrid system and method A hybrid matching system is disclosed for use with a transmitter and receiver. The hybrid matching system includes a pair of transmitter output nodes for providing a differential transmitter signal for transmission, a pair of receiver input nodes for receiving a differe... | 03/30/2006 |
| 20050207565 | Method of selecting impedance setting for loop start trunk line A method of selecting an optimum impedance for a loop start trunk line, comprising successively applying respective ones of a plurality of impedance settings to the loop start trunk line, for each impedance setting measuring the impulse response of the trans-hybrid echo... | 09/22/2005 |
| 20050117738 | Method for matching an adaptive hybrid to a line Methods for matching adaptive hybrids (15) to lines (16) for making reflectograms of the lines (16) measure (1) input impedances (Zmeas) of the lines (16), model (2) characteristic impedances of the lines (16) ... | 06/02/2005 |
| 20050013432 | Hybrid circuit for bidirectional frequency division multiplexed communication The present invention relates to a hybrid circuit for bidirectional communication over a communication line, the hybrid circuit directing a transmit signal inputted at an input line to the communication line and directing a receive signal received on the communication l... | 01/20/2005 |
