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| Number | Title | Issue Date |
| 7395038 | High-efficiency modulating RF amplifier The present invention, generally speaking, provides for high-efficiency power control of a high-efficiency (e.g., hard-limiting or switch-mode) power amplifier in such a manner as to achieve a desired modulation. In one embodiment, the spread between a maximum frequ... | 07/01/2008 |
| 7379904 | Method and storage medium for obtaining an offer for a sale of a product or a service Systems and methods for obtaining an offer for a sale of a desired product or a service are provided. The method includes iteratively transmitting a first signal including a first data message using a mobile transceiver device. Each of the first data messages includ... | 05/27/2008 |
| 7369598 | Ultra-wideband receiver and transmitter A waveform-adaptive ultra-wideband (UWB) transmitter and noise-tracking UWB receiver for use in communications, object detection and radar applications. In one embodiment, the output of an oscillator is gated by a low-level impulse generator either directly or throu... | 05/06/2008 |
| 7366482 | Transmission device, transmission output control method, and radio communications device Either linear operating mode or saturation operating mode is set as the operating mode of a high-frequency power amplifier on the basis of an operating mode set signal. The gain of a variable gain amplifier provided in front of the high-frequency power amplifier and... | 04/29/2008 |
| 7346318 | High frequency power amplifier component and radio communication system In radio communication system that is able to transmit in two or more modulation modes, e.g., one modulation mode when phase shifts are performed and another modulation mode when phase shifts and amplitude shifts are performed, the disclosed invention can avoid that... | 03/18/2008 |
| 7321735 | Optical down-converter using universal frequency translation technology A method and system for converting an optical signal to electrical information signals, including demodulated baseband information signals and modulated baseband signals at multiple harmonics. In an embodiment, the optical information signal is amplitude modulated w... | 01/22/2008 |
| 7295826 | Integrated frequency translation and selectivity with gain control functionality, and applications thereof Methods and apparatuses for frequency selectivity and frequency translation, and applications for such methods and apparatuses, are described herein. The method includes steps of filtering an input signal, and down-converting the filtered input signal. The filtering... | 11/13/2007 |
| 7292835 | Wireless and wired cable modem applications of universal frequency translation technology Frequency translation and applications of same are described herein, including cable modem applications. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and fil... | 11/06/2007 |
| 7280525 | Wireless communication device and method for selecting a multi-band A wireless communication device for adaptively selecting a multi-band that is an operational frequency band in accordance with a received frequency. The device includes a storage section for storing the frequency bands set for performing the wireless communication a... | 10/09/2007 |
| 7280802 | FM transmitter and power supply/charging assembly for MP3 player An FM transmitter and power supply/charging assembly electrically coupleable with an MP3 player. The assembly includes a modular docking unit having a main body portion with a docking cavity therein, wherein the main body portion contains the FM transmitter and powe... | 10/09/2007 |
| 7272363 | HD digital radio combining methods and systems Mid-level combining methods and systems that combine benefits of high level and low level combining methods for generating HD (High Definition) radio signal outputs. The High level IBOC combining technique combines the RF outputs of an analog transmitter with an IBO... | 09/18/2007 |
| 7242906 | FM transmitter and power supply/charging assembly for MP3 player An FM transmitter and power supply/charging assembly electrically coupleable with an MP3 player. The assembly includes a modular docking unit having a main body portion with a docking cavity therein, wherein the main body portion contains the FM transmitter and powe... | 07/10/2007 |
| 7209720 | Multiband and multimode transmitter and method A multiband and multimode transmitter circuit (200) includes two separate oscillators, such as at least a first oscillator circuit (60), a second oscillator circuit (62), a corresponding first signal processing circuit (64), and second si... | 04/24/2007 |
| 7190968 | Portable device displaying an image provided by photographing In a foldable cellular phone, an image taken and provided by a camera portion is displayed on a first or second display portion for previewing before storage in a third memory. The second display portion displays the image in the opposite directions corresponding to... | 03/13/2007 |
| 7187945 | Versatile antenna switch architecture A RF front-end having two antenna switches operatively connected to two separate antennas. The antenna switches can be used to route various transmit and receive paths to the antennas. In particular, one of the antenna switches has three switch position for use in s... | 03/06/2007 |
| 7177662 | Multimode wireless communication device A multimode wireless communication includes a digital baseband processing module, an analog to digital converter module, a digital to analog converter module, a first radio section, and a second radio section. The digital baseband processing module is operably coupl... | 02/13/2007 |
| 7154336 | High-frequency power amplifier The present invention provides a compact and low-cost high-frequency power amplifier including GaAs heterojunction bipolar transistors (HBTs) but having a low level of noise in the transmission band. In the high-frequency power amplifier of the present invention, a ... | 12/26/2006 |
| 7149483 | Amplifying diversity signals using power amplifiers A method for amplifying diversity transmit signals includes receiving a transmit signal at a vector modulator, where the vector modulator processes the transmit signal to yield diversity transmit signals, amplifying each of the diversity transmit signals according t... | 12/12/2006 |
| 7136429 | Passive redundant digital data receiver with dual comparator edge detection A passive coupling structure constructed using printed circuit board traces is used to separate the low and high frequency components of an incoming digital signal. The low and high frequency components of the signal are sent to separate receivers on an integrated c... | 11/14/2006 |
| 7129786 | Bias circuit for smart power amplifier A bias circuit for a smart power amplifier includes a high power mode bias circuit and a low power mode bias circuit, and operates only one of the bias circuits selectively using a switching circuit according to an input signal. Therefore, the bias circuit of high p... | 10/31/2006 |
| 7130596 | Dynamically varying linearity system for an RF front-end of a communication device A dynamically varying linearity system “DVLS” capable of varying the linearity of a radio frequency (RF) front-end of a communication device responsive to receiving a condition signal indicating a desired mode of operation of a transmitter. The DVLS may include ... | 10/31/2006 |
| 7110444 | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen... | 09/19/2006 |
| 7110435 | Spread spectrum applications of universal frequency translation Frequency translation and spread spectrum applications of same are described herein. Such applications include, but are not limited to, unified down-conversion and de-spreading, unified up-conversion and spreading, RAKE receivers utilizing unified down-conversion an... | 09/19/2006 |
| 7106805 | 3G radio A dual mode transmitter for GSM and UMTS operation is provided. The GSM and UMTS paths share an oscillator and an intermediate frequency stage. Also, with the exception of the final stage of power amplification, the transmitter is provided as an integrated device. | 09/12/2006 |
| 7102464 | Switched transformer for adjusting power amplifier loading A circuit includes a transmission line transformer coupled between an input and output port. An inductor may be selectively coupled into the ground return path of the transmission line transformer to alter the impedance transformation provided between the input and ... | 09/05/2006 |
| 7099635 | High-efficiency modulating RF amplifier The present invention, generally speaking, provides for high-efficiency power control of a high-efficiency (e.g., hard-limiting or switch-mode) power amplifier in such a manner as to achieve a desired modulation. In one embodiment, the spread between a maximum frequ... | 08/29/2006 |
| 7082171 | Phase shifting applications of universal frequency translation A universal frequency translation module (UFT) frequency translates an electromagnetic (EM) input signal by sampling the EM input signal according to a periodic control signal (also called an aliasing signal). By controlling the relative sampling time, the UFT modul... | 07/25/2006 |
| 7072390 | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen... | 07/04/2006 |
| 7072696 | Solar-powered mobile telephone A mobile telephone apparatus is disclosed in which a solar power source is used to supplement battery power. A solar cell array is positioned on the surface of the telephone and supplies electric current to the telephone. A preferred embodiment of the present invent... | 07/04/2006 |
| 7058380 | Multiband radio signal transmitter/receiver It is possible to achieve the miniaturization and the power saving of a hardware circuit as a multi-band radio signal transmitter/receiver, which can carry out a communication through a signal of a first communication method of transmitting and receiving a signal mo... | 06/06/2006 |
| 7054296 | Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation Frequency translation and applications of same are described herein, including wireless local area network (WLAN) applications such as IEEE Standard 802.11 WLANs. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, ... | 05/30/2006 |
| 7039372 | Method and system for frequency up-conversion with modulation embodiments A method and system is described wherein an information signals is gated at a frequency that is a sub-harmonic of the frequency of the desired output signal. In the modulation embodiments, the information signal is modulated as part of the up-conversion process. In ... | 05/02/2006 |
| 7027776 | Transverter control mechanism for a wireless modem in a broadband access system A system and method for controlling a transverter from a wireless modem unit (WMU). A WMU delivers a control signal to a transceiver. This signal is outside the IF signal data range (preferably below 11 MHz). The signal is carried on the cable between the transceive... | 04/11/2006 |
| 7027786 | Carrier and clock recovery using universal frequency translation Coherent detection of a received EM signal using universal frequency translation (UFT) is described herein. The received EM signal is sampled according to a sub-harmonic LO signal, where the LO signal is in frequency and phase coherence with the received EM signal. ... | 04/11/2006 |
| 7010286 | Apparatus, system, and method for down-converting and up-converting electromagnetic signals Methods, systems, and apparatuses for down-converting and up-converting an electromagnetic signal. In embodiments, the invention operates by receiving an electromagnetic signal and recursively operating on approximate half cycles of a carrier signal. The recursive o... | 03/07/2006 |
| 7006803 | Power amplification circuit for communication device The power amplification circuit for a communication device includes an initial-stage amplifier for amplifying a modulation signal of a predetermined frequency band, a first amplification system having a subsequent-stage amplifier and a final-stage amplifier for ampl... | 02/28/2006 |
| 7006805 | Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service A receiver having multi-mode and multi-band functionality and capabilities is described herein. The receiver is capable of selectively operating over a plurality of bands and channels. The receiver operates in a plurality of modes, including but not limited to a sin... | 02/28/2006 |
| 6999788 | Radio transmitter that determines proper standard A radio transmitter includes a CPU, functioning to allow the radio signal to be transmitted in event of a decision result that the radio signal transmission should be permitted but, in event of a decision result that the radio signal transmission should not be permi... | 02/14/2006 |
| 6950637 | Power rate enhancement circuit for an RF power amplifier in a dual mode mobile phone There is provided a power rate enhancement circuit for a power amplifier in a dual mode mobile phone including an RF power amplifier for amplifying an RF input signal, a duplexer connected to an antenna, and an isolator connected to the duplexer. The power enhanceme... | 09/27/2005 |
| 6917785 | Electromagnetic field communications system for wireless networks An Electromagnetic Field Communications System for Wireless Networks for producing an electromagnetic field within a structure is disclosed. The electromagnetic field is produced by using common conductive elements already present within virtually all pre-existing r... | 07/12/2005 |
