Class 375/271 - Angle modulation

Subclass of Class 375 - Pulse or digital communications
Definition: Subject matter where the digital information or pulses to
No. of applications: 27
Last issue date: 09/15/2011

Application No.	Application Title	Issue Date
20110222621	WIRELESS COMMUNICATION SYSTEM WITH A MODULATION BANDWIDTH COMPARABLE TO OR EXCEEDING THE BANDWIDTH OF THE TRANSMITTER AND/OR RECEIVER ANTENNAS A wireless communication system includes a) a first device having a transmitter part with a Tx-antenna for transmitting an electrical signal having a signal bandwidth BW_sigand b) a second device having a receiver part with an Rx-antenna for receiving the tra...	09/15/2011
20110142156	MULTI-CHANNEL SIGNALING A system includes a transmitter device that includes a transmitter baseband controller to segment a bit stream into a first segment, a second segment, and a third segment, and generate a first baseband signal that includes the first segment, a second baseband signal tha...	06/16/2011
20100272208	IMBALANCE COMPENSATION FOR DIRECT CONVERSION COMMUNICATION SYSTEMS Most modern integrated circuit transceivers, especially wireless LAN, utilize a direct conversion radio architecture, which is highly advantageous from the perspectives of cost and flexibility, there exist several performance impairments, including gain and phase imbala...	10/28/2010
20100027705	Method and device for calculating zero-croccing reference sequences for signal detection of angle-modulated signals based on zero crossings of the received signal A method for calculating zero-crossing reference sequences ({t_i}) for the data detection of a sequence of zero crossings ({{circumflex over (t)}_i}) of a received signal is disclosed. The data detection is determined in a receiver, wherein the recei...	02/04/2010
20100020892	APPARATUS AND METHOD FOR GENERATING SYMBOL FOR MULTIPLE ANTENNAS The present invention relates a symbol generation apparatus for multiple antennas having low receiving complexity and having flexibility with respect to an increase in the number of antennas. The symbol generation apparatus includes a plurality of space-time channel enc...	01/28/2010
20090310786	Systems for Channel Coordination of Audio and Data Transmission in a Broadcast Band Systems for audio and data transmission in a broadcast band are disclosed. The system comprises a channel condition assessment module at the transmit side to identify an un-occupied or empty channel to transmit. The system also comprises a means to achieve automatic cha...	12/17/2009
20090220024	FM Simulcast Broadcast Signal Broadcast Transmission System and Receiver Device The invention relates to a FM simulcast broadcast signal, in which an analogue and digital signal are combined for a transmission in a transmission channel with limited bandwidth as a total signal (s), which has a first phase speed (vs), an auxiliary signal (hs) is prep...	09/03/2009
20090080563	SIGNAL GENERATING APPARATUS AND METHOD THEREOF A signal generating apparatus is disclosed. The signal generating apparatus includes a test data generator for generating a test data; a fractional-N phase-locked loop device coupled to the test data generator for generating a synthesized signal according to the test da...	03/26/2009
20090003484	DEVICE AND METHOD FOR COMMUNICATION USING HYBRID MODULATION A method and system for modulating a signal includes providing a carrier including periodic waves, peaks of the periodic waves defining a carrier shape of the carrier; changing a plurality of the periodic waves so that peaks of the changed waves form a shaped signal hav...	01/01/2009
20080205543	Method and System for a High-Precision Frequency Generator using a Direct Digital Frequency Synthesizer for Transmitters and Receivers Aspects of a method and system for a high-precision frequency generator using a direct digital frequency synthesizer for transmitters and receivers may include generating a second signal from a first signal by frequency translating an inphase component of the first sign...	08/28/2008
20080205542	METHOD AND SYSTEM FOR EFFICIENT TRANSMISSION AND RECEPTION OF RF ENERGY IN MIMO SYSTEMS USING POLAR MODULATION AND DIRECT DIGITAL FREQUENCY SYNTHESIS Aspects of a method and system for efficient transmission and reception of RF energy in MIMO systems using polar modulation and direct digital frequency synthesis are provided. A plurality of carrier signals in a MIMO system may be polar modulated utilizing polar modula...	08/28/2008
20080076355	Method for Protecting Security Accounts Manager (SAM) Files Within Windows Operating Systems A method for protecting Security Accounts Manager (SAM) files within a Windows® operating system is disclosed. A SAM file encryption key is generated by encrypting a SAM file via a syskey utility provided within the Windows® operating system. The SAM file encryption k...	03/27/2008
20080031376	TRANSMISSION APPARATUS, RECEPTION APPARATUS AND RADIO COMMUNICATION SYSTEM There is provided with a transmission apparatus including: a first modulator configured to perform modulation processing on data to be transmitted to a first reception apparatus and thereby generate amplitude-phase data made up of data of amplitude and phase; a second m...	02/07/2008
20080008259	Ratiometric clock systems for integrated receivers and associated methods A ratiometric clock system for an integrated receiver and associated method are disclosed that provide an advantageous solution for combining digital signal processing (DSP) circuitry on the same integrated circuit as mixer and local oscillator (LO) generation circuitry...	01/10/2008
20070280374	MODULATION CIRCUIT DEVICE, MODULATION METHOD AND RADIO COMMUNICATION DEVICE The amplitude modulator comprises: an angle modulator for angle-modulating a phase signal to be inputted; a waveform shaping means in which, (1) when the magnitude of an amplitude signal to be inputted becomes smaller than a first prescribed value, a waveform of the amp...	12/06/2007
20070274412	Signal transmitting device and phase modulated method for transmitting via a signal transmitting device A signal transmitting device and a method for transmitting via a signal transmitting device is disclosed. In one embodiment the transmitting device comprises a first resonant circuit with a resonant circuit inductance and a resonant circuit capacitance and a second reso...	11/29/2007
20070165740	Method for wireless information transfer Method for wireless information transfer, in particular for mobile communications, in which an input signal (s₁, g₄) is subjected to a modulation in a transmitter (2 to 8) and reaches a receiver (11 to 15) through a tran...	07/19/2007
20070076810	System and method for selecting transmission format using effective SNR Methods and systems are provided for determining a transmission format using an effective SNR. The method comprises determining (105) a pilot SNR for at least one time period in a frame, mapping (110, 115, 120, and 125) the scaled SNRs of the frame ...	04/05/2007
20070064832	Frequency ramp modulation A frequency ramp modulation technique that encodes information using frequency ramps in a transmit signal. Frequency ramp modulation according to the present teachings may be employed in a communication system that includes a narrow band receiver to maintain communicati...	03/22/2007
20070025465	Shaped-offset quadrature amplitude modulation methods and apparatus Shaped Offset Quadrature Amplitude Modulation (QAM) can be implemented within a communication system. A train or sequence of orthogonal sinc pulses can be generated for each of the in-phase and quadrature signal paths. The sinc pulses in the quadrature signal path can h...	02/01/2007
20070011716	Unified receiver for layered and hierarchical modulation systems A satellite receiver includes a down converter for providing a received signal and a demodulator having at least two demodulation modes for demodulating the received signal, wherein one demodulation mode is hierarchical demodulation and another demodulation mode is laye...	01/11/2007
20070002964	Jitter compensation and generation in testing communication devices Methods, system, and computer programs for compensating for jitter in a communication system are described. A transfer function of a transmission medium is measured and an output signal that results from propagating an input signal through the transmission medium is cal...	01/04/2007
20060256889	Demodulation method and demodulation circuit A modulation method includes modulating a sending data, calculating a current modulation data of the modulated sending data in synchronization with a clock signal and demodulating the modulated sending data by comparing the calculated current modulation data and a modul...	11/16/2006
20060088121	Clock modulation systems Clock Modulation (CM), Shaped Clocked (SC) systems, Modulation and Demodulation (Modem), Baseband Processing (BBP), Intermediate Frequency (IF) and Radio Frequency (RF) signal generation-reception and processing CM methods and implementations are presented. Systems havi...	04/27/2006
20050089113	Wireless communication system and method A communication system including a first device transmitting a modulated signal and a second device receiving the modulated signal. The second device can include a first demodulator and a second demodulator. The first demodulator can receive the modulated signal, produc...	04/28/2005
20050063484	Satellite communincation system utilizing low density parity check codes An approach for reliably communicating over a satellite in support of a communication service including, for example, as direct broadcast satellite and data service, is disclosed. An input message is encoded, yielding a structured Low Density Parity Check (LDPC) coded m...	03/24/2005
20050008093	Modulation circuit device, modulation method and radio communication device The amplitude modulator comprises: an angle modulator for angle-modulating a phase signal to be inputted; a waveform shaping means in which, (1) when the magnitude of an amplitude signal to be inputted becomes smaller than a first prescribed value, a waveform of the amp...	01/13/2005

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Class 375/271 - Angle modulation