Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7974182 | Evaluating the position of a disturbance The position of a disturbance on an optical link is evaluated, in particular where the disturbance is a time-varying disturbance. An optical time domain reflectometry technique is used in which a series of low coherence test pulses is launched by means of an optical... | 07/05/2011 |
| 7443921 | Mobile body communication apparatus When communications of the same data are performed using a multi-carrier modulation method between a plurality of base stations and a mobile station at the same time and with the same frequency, a standing wave interference is generated to lower the carrier electric... | 10/28/2008 |
| 7386052 | Automation device using FSK modulation The invention relates to an automation device, with which a multiplicity of physically distributed functional units communicate with each other by means of a common transmission protocol. The device has a microcontroller (110), which is assigned at least one ... | 06/10/2008 |
| 7376114 | Code multiplexing transmitting apparatus A code multiplexing transmitting apparatus spread-spectrum modulates transmission data of a plurality of channels by spreading codes that differ from one another, combines the spread-spectrum signals of each of the channels and transmits the resultant spread-spectru... | 05/20/2008 |
| 7370283 | Systems and methods for populating a ticker using multiple data transmission modes Content to be presented on a ticker of a communication device is conveyed by being transmitted using one or more transmission modes that are intelligently selected according to various criteria. The mode is chosen from among a plurality of transmission modes availab... | 05/06/2008 |
| 7359467 | Method and apparatus for increasing the quality of the receiver synchronization of QAM or CAP modulated modem connection The invention relates to a method and apparatus for improving the quality of receiver synchronization on QAM- or CAP-modulated modem connections having an adaptive linear equalizer. The invention is based on the finding that in a QAM- or CAP-modulated data transmiss... | 04/15/2008 |
| 7349462 | Acquisition and adjustment of gain, receiver clock frequency, and symbol timing in an OFDM radio receiver The present invention discloses a method and apparatus for adjusting gain setting, receiver clock frequency, and symbol timing in an OFDM radio receiver. The method is based on the reception of a preamble with known periodic training sequences transmitted prior to u... | 03/25/2008 |
| 7349449 | Multiplexer cell and multiplexer circuit arrangement and coding device for use in a multiplexer circuit arrangement of this kind A multiplexer cell (1) for converting an input signal (D0, D1) with a data input rate (fD) into an output signal (E) with a data output rate (fE), which in particular is twice the size of the data input rate, is pro... | 03/25/2008 |
| 7313118 | Method and arrangement for asynchronous processing of CCTrCH data A method and arrangement for processing of CCTrCH data in a UMTS system, by: receiving CCTrCH data across a plurality of radio frames and timeslots (310); storing the received CCTrCH data (320); and upon receipt of complete data for a CCTrCH, processin... | 12/25/2007 |
| 7298717 | Method and apparatus for providing transmit diversity with adaptive basis A method and apparatus are provided that uses the feedback information from an ARQ signal that is received to control the transmit diversity of a transmitter. The method provides for improved performance over some existing ARQ plus open loop transmit diversity schem... | 11/20/2007 |
| 7283011 | Method for performing dual phase pulse modulation A modulation method, referred to as dual phase pulse modulation (DPPM), represents digital data as a series of high and low pulses whose widths represent groups of M data bits, with both the high and low pulses representing successive M-bit groups. Each of the 2 | 10/16/2007 |
| 7239431 | System and method for recovering primary channel operation in a facsimile receiver and facsimile machine incorporating the same A system for, and method of recovering primary channel operation in a facsimile (fax) receiver and a fax machine that incorporates the system, the method or both. In one embodiment, the system includes: (1) a signal receiver that receives a signal containing first a... | 07/03/2007 |
| 7177605 | Power amplification device, in particular for a cellular mobile telephone A power amplification device includes an input for receiving a signal having a useful or desired frequency band, and power amplification circuitry of the delta-sigma type connected to the input. The power amplification circuitry exhibits an order greater than or equ... | 02/13/2007 |
| 7149181 | Apparatus and method for re-transmitting erroneous packet data An apparatus and method for re-transmitting erroneous packet data is disclosed. Each of the physical layers of the system includes a buffer, a timer, a controller, and a radio frequency unit. The buffer temporarily stores transmitted data in the form of a final data... | 12/12/2006 |
| 7142606 | Method and apparatus for shared processing a plurality of signals A signal processing apparatus preferably suitable for implementation as an integrated circuit, that is arranged and constructed to be shared for processing a plurality of signals without interference between the signals and method thereof, the signal processing appa... | 11/28/2006 |
| 7139376 | Method and system for providing preselected information services upon detection of an off-hook condition A method and system for providing preselected information services to a subscriber includes detection of an off-hook condition at a subscriber telephone line and determining the preselected information services for the subscriber. A message is generated correspondin... | 11/21/2006 |
| 7092636 | Optical network employing erbium-doped fiber amplifiers A point-to-multipoint bi-directional wide area telecommunications network employing atmospheric optical communication. The network comprises a primary transceiver unit, a plurality of subscriber transceiver units and an optical router. The primary transceiver unit m... | 08/15/2006 |
| 7085327 | Phasor fragmentation circuitry and method for processing modulated signals having non-constant envelopes An improvement for a phasor fragmentation engine and method, whereby a phasor flipping algorithm is applied when determining fragment phasors for a non-constant envelope modulation signal (e.g. OFDM). The phasor flipping algorithm avoids sharp phase transitions for ... | 08/01/2006 |
| 7072613 | Wireless communication medium processing apparatus and wireless communication medium processing system This invention is a wireless communication medium processing apparatus which carries out communication with a wireless communication medium, to carry out at least one of reading and writing as to information which was stored in the wireless communication medium, and... | 07/04/2006 |
| 7064538 | Magnetic sensor digital processing interface for electrical motor application A system and methods for an interface for magnetic sensors to determine a rotational angle has been achieved. This interface can be used for magnetic sensors providing analog signals of the sine and cosine values of the angle to be determined. Analog signals are bei... | 06/20/2006 |
| 7016425 | Quasi-differential modulation/demodulation method for multi-amplitude digital modulated signals and OFDM system The invention proposes the separate processing of the phase and amplitude of multi-amplitude digital modulation techniques, such as a QAM. The phases are differentially modulated and the amplitudes coherently processed. Also proposed is a method to correct the ampli... | 03/21/2006 |
| 7013129 | Queuing for radio channel availability Apparatus and a method for establishing a cellular mobile call. If no radio traffic (voice or data) channels are available for a calling Mobile Station (MS), then a test is made to determine the expected wait time before a channel becomes available. If the expected ... | 03/14/2006 |
| 6999407 | Speed negotiation device and method A device and method for data rate selection in data transmission is provided, having a first register for storing an N bit data upon clocking by a first clock; a second at least one register for storing the N bit data upon clocking by a second clock, the second cloc... | 02/14/2006 |
| 6973295 | Determination of a differential offset in a radio device and radio device A device for determining an offset value for an offset occurring in a differential transmission signal section of a radio device utilizes, for the purpose of determining the offset value, a signal processing section in a reception part of the radio device. A connect... | 12/06/2005 |
| 6968296 | Cable detector with decimating filter and filtering method A cable detection or location device is disclosed having a detection stage to produce a detection signal, a decimating filter having an input and an output, the input being coupled to the receiving stage to filter the detection signal and output a down-sampled filte... | 11/22/2005 |
| 6922438 | System for MPSK symbol hypothesis testing A system for MPSK symbol hypothesis testing. A received symbol having in-phase (I) and quadrature (Q) components is input to the system. Multipliers for each of the components are determined corresponding to the MPSK symbol hypothesis s being tested. The symbol s is... | 07/26/2005 |
| 6907241 | Network for transmission of broad-band signals Airborne units (2) acquire images as electronic signals either directly or indirectly from first ground based units (2a) and transmit them by broad band radio to second ground based units (3, 4), either directly or indirectly via second a... | 06/14/2005 |
| 6856590 | OFDM transmission device and OFDM transmission method The time required for switch the channel can be remarkably curtailed. When broadcasting signals through a plurality of information channels with an OFDM system, the plurality of information channels are multiplexed in the sense of frequency and collectively subjecte... | 02/15/2005 |
| 6845083 | Multi-standard transmitter system and method for a wireless communication system A transmitter 108 converts a digital baseband signal input 150 for transmission by an antenna 114 to support multiple communication standards. An over-deviation phase multiplier 130 increases signal phase deviation by a factor of M. A dig... | 01/18/2005 |
| 6826169 | Code multiplexing transmitting apparatus A code multiplexing transmitting apparatus spread-spectrum modulates transmission data of a plurality of channels by spreading codes that differ from one another, combines the spread-spectrum signals of each of the channels and transmits the resultant spread-spectru... | 11/30/2004 |
| 6687356 | System and method for providing device-aware services in an integrated telecommunications network A system and method of device-aware service provisioning in a hybrid/integrated telecommunications network having a packet-switched network portion (PSN) and heterogeneous circuit-switched network (CSN) portions. A user profile is provided which partition... | 02/03/2004 |
| 6675306 | Method and apparatus for phase-lock in a field programmable gate array (FPGA) An apparatus for performing phase-lock in a field programmable gate array includes a phase detector configured to determine a phase difference between a carry logic oscillator signal and a reference clock signal; and a combinational circuit coupled to the... | 01/06/2004 |
| 6470055 | Spectrally efficient FQPSK, FGMSK, and FQAM for enhanced performance CDMA, TDMA, GSM, OFDN, and other systems Spectral efficient transmitters-receivers (transceivers), modulation-demodulation (Modem) methods, architectures, structures and implementation technologies for enhanced performance and increased capacity CDMA, TDMA, GSM,OFDM, CMA, FDM and other wireless ... | 10/22/2002 |
| 6445746 | IS-136+ slot formation A system and method for demodulating slots having a mixed slot formation including differential and coherently encoded slots is disclosed. The method includes pre-phase encoding data and a predetermined sequence in a slot at a transmitter such that the en... | 09/03/2002 |
| 6445745 | Phase encoding methods for handling multiple phase modulated signals on a single channel A method for phase encoding DPSK and N-PSK which maintains phase continuity and which does not require any reference symbols when using N-PSK. A sequence of known DPSK phases are encoded with respect to an initial phase. The N-PSK phases are then all offs... | 09/03/2002 |
| 6373817 | Chase me system A chase me method of routing a variable bit rate communication between a first terminal and a distant terminal over alternative networks including a circuit switched network and a packet network permits changing routing parameters remotely in response to ... | 04/16/2002 |
| 6314369 | Communications navigation system, and navigation base apparatus and navigation apparatus both used in the navigation system In a communications navigation system, data is transmitted and received between a navigation base apparatus provided at a navigation base and each of a plurality of navigation apparatuses provided in moving bodies such as vehicles using communication. A d... | 11/06/2001 |
| 6157612 | Fast fading packet diversity transmission method and system The present invention is a fast fading packet diversity transmission method and system for reducing the effects of multipath fading on slow fading channels. One embodiment of the present invention includes a modulator for modulating information packets an... | 12/05/2000 |
| 5978421 | Envelope control unit and digital modulator using the envelope control unit and digital modulation method A power component of a transmission modulated wave generated by synthesizing a plurality of digital-modulated multi-carriers is calculated. Then, the envelope control unit of the present invention controls an envelope of the transmission modulated wave by... | 11/02/1999 |
| 5929921 | Video and audio signal multiplex sending apparatus, receiving apparatus and transmitting apparatus The present invention provides a video and audio signal multiplex transmitting apparatus having a video and audio signal multiplex sending apparatus for grouping audio data to packets of a fixed length in the sending side, and multiplexing video and audio... | 07/27/1999 |
