Processes, articles, and packets for network path diversity in media over packet applications
In one form of the invention, a process of sending real-time information from a sender computer to a receiver computer coupled to the sender computer by a packet network wherein packets sometimes beco... Read More
Inventors: Perkins, Stephen J.; Gatherer, Alan; Anandakumar, Krishanasamy; McCree, Alan V.; Viswanathan, Vishu;, Assignee: Texas Instruments Incorporated (Dallas, TX) |
Wireless base station systems for packet communications
In one form of the invention, a process of sending packets of real-time information at a sender includes steps of initially generating at the sender the packets of real-time information with a source ... Read More
Inventors: Anandakumar, Krishnasamy; Viswanathan, Vishu R.; McCree, Alan V.;, Assignee: Texas Instruments Incorporated (Dallas, TX) |
Adaptive encoding system of moving picture frame
It is an object of the present invention to provide a new and improved encoding system of a moving picture by overcoming the disadvantages and limitations of a prior art encoding system. It is also an... Read More
Inventors: Hamada, Takahiro; Saito, Masahiro; Matsumoto, Syuichi;, Assignee: Kokusai Denshin Denwa Co., Ltd. (Tokyo, JP) |
Baby bottle identification collar
OF A PREFERRED EXEMPLARY EMBODIMENT Referring now to FIG. 1, identification collar 10 in accordance with the present invention is disposed on a conventional baby bottle 12. Baby bottle 12 includes a ... Read More
Inventors: Ricks, M. David;, Assignee: |
Baby bottle equipped with bottle nipple shield
In order to overcome the problems which characterize the various structures of the prior art as described above, and correspondingly fulfill a need in the art which has simply gone unmet, the baby bot... Read More
Inventors: Clark, Jr., Donald P.;, Assignee: |
Binary transversal filter
What is claimed is: 1. A binary transversal filter for receiving NRZ input signals synchronously with clock pulses, comprising: a shift register, to which the NRZ input signals are fed directly, said ... Read More
Inventors: Ogawa, Kazuo; Suzuki, Eiji; Kurita, Osamu; Horikawa, Izumi;, Assignee: Fujitsu Limited (Kawasaki, JP); Nippon Telegraph and Telephone Public Corp. (Tokyo, JP) |
Automatic adaptive equalizer
It is therefore a primary object of the present invention to provide an automatic adaptive equalizer wherein both amplitude and delay distortions are adaptively equalized according to control signals ... Read More
Inventors: Mizoguchi, Shoichi;, Assignee: NEC Corporation (Tokyo, JP) |
Intercept detector for spread-spectrum signals
It is an object of the present invention to be able to intercept and decode frequency-hopped spread-spectrum signals that are immersed in noise, without knowledge of the hopping pattern. It is an addi... Read More
Inventors: Walsh, John B.;, Assignee: The Boeing Company (Seattle, WA) |
Diversity combiner with MLSE for digital cellular radio
What is claimed is: 1. An apparatus for combining signals Z.sub.1 (k) and Z.sub.2 (k) received on different antennas over a multipath fading channel comprising: first and second channel estimators, ea... Read More
Inventors: Kim, Youngky;, Assignee: Hughes Aircraft Company (Los Angeles, CA) |
Frequency error detecting device capable of correctly detecting a frequency error between a carrier frequency and a standard frequency
It is therefore an object of this invention to provide a frequency error detecting device capable of correctly detecting a frequency error between a standard frequency and a carrier frequency. Other o... Read More
Inventors: Muto, Hiroyasu;, Assignee: NEC Corporation (JP) |
Method and apparatus for synchronization between real-time sampled audio applications operating full-duplex over a half-duplex radio link
One of the two transceivers engaged in the communications session will have originated the session, and is referred to as the originate node. The other of the transceivers is referred to as the answer... Read More
Inventors: Strawn, David F.;, Assignee: Digital Wireless Corporation (Atlanta, GA) |
Switcher for flexibly interconnecting communication ports
According to a first aspect of the present invention there is provided a method of configuring a switch comprising n I/O ports, where n>2, and a switching core having n inputs connected to the n I/... Read More
Inventors: Meyer, Charles S.; Allen, Neill J.;, Assignee: Nvision, Inc. (Grass Valey, CA) |
Index decoder for digital modems
A primary objective of the present invention is to provide a modem receiver adapted to manipulate the points of a signal constellation located in a single quadrant. A further objective is to provide a... Read More
Inventors: Zuranski, Edward S.; Martinez, Kenneth;, Assignee: Paradyne Corporation (Largo, FL) |
Frequency adaptive phase jitter canceler
OF THE INVENTION Referring now to FIG. 1, a block diagram of a typical modem receiver incorporating the jitter canceling circuit of the present invention is shown. The incoming phase-jittered signal ... Read More
Inventors: Turner, Michael D.; Hayes, Jack L.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Adaptive equalizers
Therefore, an object of the present invention is to provide a function for detecting characteristics of a transmission line and equalizing a signal by using the detected result and thereby adaptively ... Read More
Inventors: Kimoto, Takashi; Yaginuma, Yoshinori; Asakawa, Kazuo; Nagata, Shigemi;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Period-inverting FM demodulator
Accordingly, it is an advantage of the present invention that an FM demodulator is provided in which the rate at which data is demodulated from a modulated waveform is substantially independent of the... Read More
Inventors: Gard, Michael F.;, Assignee: Atlantic Richfield Company (Los Angeles, CA) |
HF high data rate modem
Referring to FIG. 1, a high frequency (HF) communications system 10 employing a pair of HF modems 11 in accordance with the principles of the present invention is shown. Each modem 11 includes a tran... Read More
Inventors: O'Connor, Roger J.; Cai, Khiem V.;, Assignee: Hughes Aircraft Company (Los Angeles, CA) |
Code-division multiplex communication apparatus
An object of the present invention is to provide a code-division multiplex communication apparatus having a high SN ratio. Another object of the .present invention is to provide a code-division multip... Read More
Inventors: Inatsu, Minoru; Watanabe, Kimio;, Assignee: Fujitsu Limited (Kanagawa, JP); Inatsu; Minoru (Tokyo, JP) |
Air brake compressor failure warning system
OF THE INVENTION FIG. 1 is a schematically shows a compressor 10 with a fixed portion 11 such as a housing, and a rotary element 12, such as a rotor. A magnet 13 is carried by the rotary element. A m... Read More
Inventors: Gray, William M.; Otteman, John H.;, Assignee: |
Direct conversion FM receiver
We claim: 1. A direct conversion receiver comprising an input for an FM signal, means coupled to the input for producing frequency down-converted quadrature related I and Q signals at baseband frequen... Read More
Inventors: Collier, Christopher J.; Brown, Robert A.; Sommer, Monique G. M.;, Assignee: U.S. Philips Corp. (New York, NY) |
Modular communications system including a portable unit range extender and selective-call system
In summary a modular communications system includes both a range extender system and a system of addressing predetermined transceivers. In particular, a method and apparatus including a portable RF hy... Read More
Inventors: Tendler, Robert K.; Karkota, Jr., Frank P.;, Assignee: |
Speakerphone sensing circuit
It is an object of the present invention to provide circuitry in a speakerphone for enabling a central telephone service unit to determine whether a speakerphone is connected into the system. It is a ... Read More
Inventors: Korsky, Vincent V.; Keenan, Ronald M.;, Assignee: Tie/Communications, Inc. (Shelton, CT) |
Methods and apparatus for encoding and/or decoding digital data elements with different degrees of error protection in accordance with a quasi-product code
It is, inter alia, an object of the present invention to provide a method according to the first paragraph of the Background of the Invention that allows for straightforward encoding with respective d... Read More
Inventors: Tolhuizen, Ludovicus M. G. M.;, Assignee: U.S. Philips Corporation (New York, NY) |
Method and apparatus for logically rejecting previously recorded track residue from magnetic media
A method and apparatus for logically rejecting previously recorded track residue during a read session of data recorded over the previously recorded tracks is described in detail hereinafter. In the ... Read More
Inventors: McAuliffe, Richard; Zaczek, Thomas E.;, Assignee: |
Amplitude and frequency modulation system
In accordance with the invention, significant suppression of one sideband of a carrier wave, frequency modulated by a baseband signal, is achieved by simultaneous and direct amplitude modulation of th... Read More
Inventors: Salz, Jack; Werner, Jean J.;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Quadrature amplitude modulation communication system with transparent error correction
The present invention has been made in an attempt to solve the conventional problems, and therefore has a primary object to provide a QAM (quadrature amplitude modulation) communication system capable... Read More
Inventors: Nakamura, Makoto; Kodama, Tomoko;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Synchronization arrangement for decoder/de-interleaver
OF THE INVENTION FIG. 1 illustrates a basic interleaved/concatenated FEC communications system 10, comprising a transmitter 12 and a receiver 14 that are connected by a communications channel 16. The... Read More
Inventors: Ben-Efraim, Nadav;, Assignee: LSI Logic Corporation (Milpitas, CA) |
Method and apparatus for reducing the peak envelope voltage of an RF transmitter while maintaining signal average power
The peak envelope voltage of a radio frequency transmitter employing modulation which places a signal and its diversity copy about a common carrier frequency is reduced while maintaining the same aver... Read More
Inventors: Webb, Kenneth F.;, Assignee: Rockwell International Corporation (Seal Beach, CA) |
Image processing apparatus and method
An object of the present invention is to solve the aforesaid problems; that is, to realize efficient encoding by dividing an image into areas of different natures. For achieving this object, according... Read More
Inventors: Shimura, Norio; Yoshida, Tadashi; Maeda, Mitsuru; Ishida, Yoshihiro;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Line coding technique for efficient transmission and delineation of encapsulated frames over high speed data links
The method uses a 2 bit to 4 level coding scheme in order to reduce the effective symbol rate on the UTP-5 cable. This type of encoding is generally referred to as 2B1Q and has been used in other appl... Read More
Inventors: Dabecki, Stephen; Gerson, Brian; Hagglund, Barry; Huscroft, Charles Kevin; Little, Vernon R.;, Assignee: PMC-Sierra Ltd. (CA) |
Multiplexer-related 
