System and method for alleviating skew in a bus
The present invention provides a most signal skew tolerant timing window for signal transfer in relation to the capture clock timing. The teaching of this invention is to align the signal of each sign... Read More
Inventors: Wu, Leon Li-Heng;, Assignee: International Business Machines Corporation (Armonk, NY) |
Phase-locked loop or delay-locked loop circuitry for programmable logic devices
These and other objects of the invention are accomplished in accordance with the principles of the invention by providing PLL or DLL circuitry on a programmable logic device in which the feedback loop... Read More
Inventors: Sung, Chiakang; Huang, Joseph; Wang, Bonnie I.; Bielby, Robert R. N.;, Assignee: Altera Corporation (San Jose, CA) |
Parallel data bus integrated clocking and control
A clock is always needed with transmitted data in order to define the position of individual bits in the data sequences. If the clock is directly transmitted, such a clock signal may require special h... Read More
Inventors: Hogeboom, John Gordon;, Assignee: Nortel Networks Limited (Montreal, CA) |
Synchronizing signal detecting circuit
Accordingly, the present invention is directed to a synchronizing signal detecting circuit that substantially obviates one or more of the problems due to limitations and disadvantages of the related a... Read More
Inventors: Lee, Doo Hee;, Assignee: LG Electronics Inc. (Seoul, KR) |
Method for minimizing clock skew by relocating a clock buffer until clock skew is within a tolerable limit
The present invention advantageously addresses the problems above as well as other problems by providing a balanced clock placement method that minimizes clock skew. In one embodiment, the present inv... Read More
Inventors: Tetelbaum, Alexander; Kapur, Rajiv;, Assignee: LSI Logic Corporation (Milpitas, CA) |
Phase detection circuit for stepwise measurement of a phase relation
It is an object of the invention to provide an accurate phase detection circuit comprising few circuit elements and operating unambiguously. According to the invention, a phase detection circuit of th... Read More
Inventors: Boudewijns, Arnoldus J. J.;, Assignee: U.S. Philips Corporation (New York, NY) |
Clock generator circuit and a synchronizing signal detection method in a sampled format system and a phase comparator circuit suited for generation of the clock
The present invention is made in view of the aforementioned problems and accordingly an object of the present invention is to provide a recording-reproducing clock generator circuit enabled to make a ... Read More
Inventors: Yokogawa, Fumihiko; Hirano, Hiroyuki; Kinpara, Keiji;, Assignee: Pioneer Electronic Corporation (Tokyo, JP) |
Multiple clock synthesizer
In a preferred embodiment of the invention, there is provided a multiple clock synthesizer having an oscillator for providing a train of pulses corresponding to a base signal along with a plurality of... Read More
Inventors: McDermott, Bruce C.;, Assignee: Eastman Kodak Company (Rochester, NY) |
Phase and frequency adjustable digital phase lock logic system
According to the present invention, a phase lock logic system is provided for determining (i) the delay or phase shift of a received composite signal with respect to a local clock signal and (ii) the ... Read More
Inventors: Gersbach, John E.; Novof, Ilya I.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Digital phase alignment and integrated multichannel transceiver employing same
We claim: 1. A synchronizer for phase aligning an input signal, having a data transition, with a reference clock signal, said synchronizer comprising: a delay circuit having an input coupled to receiv... Read More
Inventors: Georgiou, Christos J.; Larsen, Thor A.; Lee, Ki W.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Spread spectrum communication apparatus
It is an object of the invention to rapidly and properly set a transmission power. Another object of the invention is to properly set a transmission power before the synchronization is obtained at the... Read More
Inventors: Saito, Katsuo;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Station of a TDMA communication network capable of quickly changing communication traffic without causing an overlap between transmission bursts
What is claimed is: 1. In a terrestrial station of a time division multiple access communication network, said terrestrial station including transmission means for transmitting a transmission burst in... Read More
Inventors: Hotta, Toshinori;, Assignee: NEC Corporation (JP) |
Advanced technology anti-G suit
Referring now to FIG. 1 of the drawings, there is shown a simplified perspective view of an anti-G suit pressure bladder 10 made according to the teachings of the present invention showing pressure b... Read More
Inventors: Krutz, Jr., Robert W.; Ripley, Grady L.; Simpson, Robert E.; Hill, Ronald C.; Travis, Thomas W.; Morgan, Thomas R.; Burns, John W.;, Assignee: The United States of America as represented by the Secretary of the Air (Washington, DC) |
Multiple satellite repeater capacity loading with multiple spread spectrum gateway antennas
This invention is directed to a communication system, and to a method executed by same, for allocating communications traffic through a plurality of satellites of a constellation of low earth orbit sa... Read More
Inventors: Wiedeman, Robert A.; Monte, Paul A.; Carter, Stephen S.; Ames, William;, Assignee: Globalstar L.P. (San Jose, CA); Qualcomm Incorporated (San Diego, CA) |
Partial-response-channel precoding
In the HDTV system shown in FIG. 1, binary input data in the form of an HDTV signal is generated by an HDTV signal source 11. Illustratively, source 11 includes a television signal source encoder whi... Read More
Inventors: Wei, Lee-Fang;, Assignee: AT&T Bell Laboratories (Murray Hill, NJ) |
Method of digital transmission of messages using dynamic-range-limited precoding
An object of the invention is to reduce the dynamic range of the received signal in a digital communication system compared to the above-described prior art. The invention achieves this object by limi... Read More
Inventors: Huber, Johannes; Fischer, Robert;, Assignee: ke Kommunikations-Elektronic GmbH & Co. (Hanover, DE) |
Adaptive pre-equalizer for use in data communications equipment
In accordance with the invention, the foregoing error propagation problem is solved by using the communications channel to adapt a set of coefficients of a pre-equalizer of a transmitter. In accordanc... Read More
Inventors: Herzberg, Hanan; Langberg, Ehud; Wang, Jin-Der; Werner, Jean-Jacques;, Assignee: Globespan Technologies, Inc. (Largo, FL) |
Transmission method and apparatus employing trellis-augmented precoding
The principles of the invention, which can be designated as "trellis-augmented preceding", will be described with reference to FIG. 1. A specific embodiment is illustrated in FIG. 2. A system for tre... Read More
Inventors: Cherubini, Giovanni; Oelcer, Sedat; Ungerboeck, Gottfried;, Assignee: International Business Machines Corp. (Armonk, NY) |
Device and method for precoding data signals for PCM transmission
OF A PREFERRED EMBODIMENT There is first described below a technique for PCM downstream spectral shaping or preceding of data signals. Then, there is described a preceding technique for PCM upstream ... Read More
Inventors: Eyuboglu, M. Vedat; Humblet, Pierre A.; Kim, Dae-young;, Assignee: Motorola Inc. (Schaumburg, IL) |
Cell signal processing circuit and optical switch apparatus using the same
It is a principal object of the present invention to provide a cell signal processing circuit which is capable of precisely extracting a timing signal and a cell synchronizing signal and an optical sw... Read More
Inventors: Takahashi, Yasushi; Amada, Eiichi; Ando, Kimiaki; Miyata, Masanori;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Space/time switching element having input/output circuits each separately switchable between two or more bit rates
The present invention solves this problem by providing a switching element comprising a plurality of input circuit (I1, . . . , I16) each associated with one of a plurality of input lines on each of w... Read More
Inventors: Wohr, Peter;, Assignee: Alcatel N.V. (Amsterdam, NL) |
Communication apparatus and method for reading out stored function information in response to identifying information
It is an object of the present invention to provide a communication apparatus and method which solve the above-described problems. Another object of the present invention is to provide a method and ap... Read More
Inventors: Chida, Makoto;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Method for making a multimedia application executable on hardware platforms with various different resource levels, a physical record containing such application, and an apparatus for executing such application
OF PREFERRED EMBODIMENTS FIG. 1 shows a flow chart for storing an application according to the invention. The operations according to this flow chart can be executed directly after the general writin... Read More
Inventors: Elbers, Gerard J.; Bouffioux, Alain R.P.;, Assignee: U.S. Philips Corporation (New York, NY) |
System and method for implementing a universal service broker interchange mechanism
In an effort to overcome the above mentioned shortcomings, the present invention is based on the belief that multiple service discovery protocols will continue to exist in the foreseeable future. The ... Read More
Inventors: Graham, Stephen G.; Miller, Brent A.; Miller, Steven M.; Eagle, Brian Lee White; Colson, James C.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Double buffering operations between the memory bus and the expansion bus of a computer system
OF THE PREFERRED EMBODIMENT Referring now to FIG. 1, a computer system C is shown incorporating a double buffering apparatus according to the present invention. The computer system C is preferably a ... Read More
Inventors: Culley, Paul R.; Taylor, Mark;, Assignee: Compaq Computer Corporation (Houston, TX) |
Packet transmission method without sending serial numbers
It is therefore an object of the present invention to provide a data communication method that enables a high throughput over low-speed communications links by not transmitting serial numbers which ar... Read More
Inventors: Taketsugu, Masanori;, Assignee: NEC Corporation (Tokyo, JP) |
Method for detecting invalid packets by rewriting transaction identifers
The present invention provides a method for reliable stale packet recognition in a network. The following description is presented to enable one of ordinary skill in the art to make and use the inven... Read More
Inventors: Koch, Edward L.; Soucek, Stefan;, Assignee: Coactive Networks, Inc. (Sausalito, CA) |
System for determining individual cell/pocket loss in ATM/IP networks among on-off sources
A system is therefore needed which can project the performance metrics for each individual connection based on the measurement at the switch aggregate level. By assuming the incoming traffic is confor... Read More
Inventors: Zhang, Zhensheng; Ji, Hongbin;, Assignee: Lucent Technologies Inc. (Murray Hill, NJ) |
Electrophotocopier line scanning illuminator
The instant invention provides a line scanning, illuminating apparatus for use in an electrophotocopying machine. The apparatus comprises a linear source of light, a hyperbolic reflector situated behi... Read More
Inventors: Bosse, Thomas W.;, Assignee: Pitney Bowes Inc. (Stamford, CT) |
Power pack for controlling the angular position of a vehicle rearview mirror
The present invention includes a power pack which is to be mounted within a mirror housing. The mirror housing is shaped to define a cavity. The power pack is connected to a base plate which holds the... Read More
Inventors: Crandall, Robert M.;, Assignee: Harman Automotive, Inc. (Farmington Hills, MI) |
Multiplexer-related 
