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Patent No. 6637829

Decorative Jeweled Wheel Cover

An improved wheel is provided wherein decorative items such as gem stones are embedded in either the wheel surface, a special mounting section attached to the wheel surface, or to a spoke strap that wraps around each spoke and positions embedded gem stones on the outside surface of the spoke.

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Class 455/107 - With variation of antenna impedance or dimension for modulation


Subclass of Class 455 - Telecommunications
Definition: Subject matter where the carrier wave is modulated, under
No. of patents: 84
Last issue date: 05/01/2012


1      
NumberTitleIssue Date
8170505Driver amplifier having a programmable output impedance adjustment circuit
A driver amplifier in an integrated circuit is suitable for driving a signal onto an output node and through an output terminal, and through a matching network to a power amplifier. A novel Programmable Output Impedance Adjustment Circuit (POIAC) within the integrat...
05/01/2012
8126410Miniature sub-resonant multi-band VHF-UHF antenna
A novel antenna system for receiving transmissions in the VHF and UHF frequency bands particularly suitable as a miniaturized antenna for UHF reception, such as of digital video broadcasting transmissions. The antenna system utilizes a combination of three technique...
02/28/2012
8095085Automatic antenna tuning unit for software-defined and cognitive radio
A closed-loop controlled antenna tuning unit (ATU) system includes a return loss detector connected to sample an RF signal generated by a signal source to provide a return loss signal. A matching state searching circuit is connected to receive the return loss signal...
01/10/2012
7986924Impedance control apparatus and method for portable mobile communication terminal
An impedance control apparatus and method for portable mobile communication terminal is disclosed capable of accurately adjusting impedances relative to environment when the portable mobile communication terminal is being used, wherein an impedance of a first variab...
07/26/2011
7840194Transmitting circuit, receiving circuit, interface switching module and interface switching method for SATA and SAS interfaces
A transmitter circuit, a receiver circuit and an interface switching module for SATA or SAS interface are provided. The invention uses transistors as elements with different impedance and also provides impedance modulating method in coordination with the exterior ci...
11/23/2010
7831219Matching network
A matching network for matching an antenna to a transmitter or receiver comprises an input port for receiving high-frequency power, an output port and a switchable impedance transformation circuit, which is connected between the input port and the output port. The i...
11/09/2010
7711332Methods and devices for the suppression of harmonics
An antenna for suppressing harmonics of a signal transmitted from the antenna, the signal having a carrier with an imposed modulated data signal, the antenna including a modulator associated with a controlled variable impedance in series, the modulator being operabl...
05/04/2010
7693495Transmitting arrangement and method for impedance matching
A transmitting arrangement includes a matching circuit, a reference circuit and a comparator. The output of the matching circuit can be coupled to an antenna and comprises an adjustable impedance. The reference circuit is connected to an input of the matching circui...
04/06/2010
7620376Method and arrangement for performing analog signal processing and measuring between a signal source and a load
A method and arrangement is shown for performing analog signal processing tasks like impedance matching, phase shifting, and/or signal filtering on a signal path from a signal source to a load so that a number of electrical components is smaller than that of solutio...
11/17/2009
7512384Control unit and a control method
A control unit and a control method are disclosed. First and second changing units change impedances of two or more first and second components within predetermined first and second ranges, respectively, the first and the second components affecting an output signal...
03/31/2009
7509100Antenna interface unit
A ferro-electric (FE) tunable antenna matching circuit is provided for a multi-band antenna. The tunable matching circuit is integrated with a diplexer on one substrate. The tunable matching circuit has a first and second inductor coupled to the antenna. The second ...
03/24/2009
7469129Transceiver with closed loop control of antenna tuning and power level
A trainable transceiver for learning and transmitting an activation signal that includes an RF carrier frequency modulated with a code for remotely actuating a device, such as a garage door opener. The trainable transceiver preferably includes a controller, a signal...
12/23/2008
7379714Method and apparatus for dynamically adjusting a transmitter's impedance
A method and apparatus for dynamically adjusting the impedance between a transmitter's power amplifier (PA) and antenna to efficiently transfer power from the PA to the antenna. The impedance between the PA and the antenna is adjusted based on power level measuremen...
05/27/2008
7359681Transmitting apparatus and method of mobile communication terminal
A mobile communication terminal transmitter comprises a detecting unit for detecting at least one of a first power level and a first power of reflection; a baseband signal processing unit for outputting at least one of a bias voltage and a power control signal, wher...
04/15/2008
7356314Systems and methods for reusing a low noise amplifier in a wireless communications device
A wireless communication device comprises a plurality of receive signal paths, each of the receive signal paths is configured to receive signals in a certain frequency bandwidth. The communication device also comprises an amplifier coupled with each of the plurality...
04/08/2008
7349354Serving soft handoffs between mobile switching centers that use different protocols
The present invention may relate to the following steps. Converting a bundle of data from a first format of a first mobile switching center to a second format of a switch. Routing, at the switch, the bundle data in the second format. Converting the bundle of data fr...
03/25/2008
7336238Shaped ground plane for dynamically reconfigurable aperture coupled antenna
Method for controlling an input impedance of an antenna (100). The method can include the steps of coupling RF energy from an input RF transmission line (106) to an antenna radiating element (102) through an aperture (112) defined in a gr...
02/26/2008
7254422Antenna-headset combination for a mobile terminal
A headset for a mobile communication terminal is disclosed. The headset comprises a main body and a RF module printed circuit board (PCB) housed within it. A microphone is also housed within the main body and connected to the RF module PCB. A guide piece housing an ...
08/07/2007
7236802Coupling device for interfacing power amplifier and antenna in differential mode
A coupling device for coupling an electronic circuit for at least one antenna unit to exchange electrical signals between the electronic circuit and the at least one antenna unit comprises a first input/output signal path, a matching unit coupled to the first input/...
06/26/2007
7202734Electronically tuned power amplifier
A circuit and method for electronically tuning an RF power amplifier. The output filter includes at least one electronically variable reactance. The electronically tuned power amplifier may be tuned rapidly to a selected frequency, to a selected impedance, or to pro...
04/10/2007
7190933Method and apparatus for automatic tuning of a resonant loop antenna in a transceiver circuit
Disclosed is a circuit and method for automatic tuning of a resonant circuit in a transceiver having a receiver and a transmitter that includes a power amplifier for driving the resonant circuit. During a transmit mode of the transceiver, a resonance voltage of the ...
03/13/2007
7184724System and method for frequency translation using an image reject mixer
Frequency translation, such as frequency up conversion of a video baseband or intermediate frequency to a desired frequency division broadcast channel, is provided utilizing a single sideband or image reject mixer and filtering having relaxed selectivity requirement...
02/27/2007
7180646High efficiency micro-display system
Micro-displays used for front or rear projection systems as well as near-eye viewing systems may be enhanced using embodiments of the present invention. In one embodiment, the invention may include an array of micromechanical optical modulators, an electronic contro...
02/20/2007
7167688RF transceiver module formed in multi-layered ceramic
An RF transceiver module for wireless communication devices includes a multi-layered substrate, an RF transceiver IC mounted on the multi-layered substrate for receiving and transmitting voice or data signals, at least one band selection filter mounted on the multi-...
01/23/2007
7158761Smart amplifier for time division duplex wireless applications
A bi-directional antenna-mount amplifier particularly suited to be compatible with a broad range of advanced spread spectrum TDD wireless applications relying on either direct sequence or frequency hopping, at a wide range of frequencies, and which allows the radio ...
01/02/2007
7148751Handset radiofrequency front end module in fine pitch quad flat no lead (FQFP-N) package
An apparatus and method for transmitting signal, the apparatus comprising a front end telecommunications module including a power amplifier, a matching circuit coupled to the power amplifier, and a filter coupled to the matching circuit, such that a signal received ...
12/12/2006
7146139System and method for reducing SAR values
A system and method for reducing the Specific Absorption Rate (SAR) of a mobile communication device employs a sensor assembly for sensing when the mobile communication device is in proximity to a body such as a human body, animal body, or the like. The average powe...
12/05/2006
7142811Wireless communication over a transducer device
One aspect of the present invention is generally directed towards a system and method of tuning a transducer for transmitting and receiving a wireless signal. In an illustrative embodiment, a single transducer is coupled to a first or second circuit for either trans...
11/28/2006
7136681Electrically conductive carrier and patterning for controlling current distribution in a wireless communications device
A communications device includes a cover member, a circuit board having a lowest point of potential, and an antenna to transmit and receive RF signals. The antenna is electrically connected to the circuit board. A carrier is interposed between the circuit board and ...
11/14/2006
7107030Transmitter and a modulator therefor
A transmitter for a portable radio communication apparatus comprising a modulator having first port for inputting a baseband signal and a second port for inputting a local oscillator signal, and including means for rectifying the input local oscillator signal to pro...
09/12/2006
7106852Telephone accessory for generating conversation utterances to a remote listener in response to a quiet selection
A user conducts a telephone conversation without speaking. It does this by moving the participant in the public situation to a quiet mode of communication (e.g., keyboard, buttons, touchscreen). All the other participants are allowed to continue using their usual au...
09/12/2006
7103325Adaptive modulation and coding
The present invention selects a space-time encoding mode to use when transmitting with spatial diversity based on the receive diversity associated with a receiver device and the quality of the transmission channels based on information fed back from the receiver dev...
09/05/2006
7079878Portable radio terminal capable of obtaining good polarization efficiency regardless of position and direction of antenna
A portable radio terminal comprises a housing, a radio circuit included in the housing, a matching circuit mounted on the top of the housing at a position which is offset from the longitudinal center line of the housing, a load connected to the tip of the matching c...
07/18/2006
7071776Systems and methods for controlling output power in a communication device
A mismatch detector including a directional device adapted to couple signals across the device and a detector coupled to a port on the directional device and configured to measure a reflected power a second detector coupled to a port on the directional device and co...
07/04/2006
7071792Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance
An impedance matching circuit (140) includes a capacitive element (C1, 220), having a capacitance C, coupled in parallel with an output node (215) of the matching circuit, and an inductor (L1, 225) coupled in series ...
07/04/2006
7062228Cellular communications system using baseband carrier injection and related methods
A cellular communications system may include one or more cellular base stations and a plurality of mobile cellular communications devices for communicating therewith. More particularly, the cellular base station and the mobile cellular communications devices may eac...
06/13/2006
7058372Method and apparatus for automatic tuning of a resonant loop antenna
Disclosed is a circuit and method for continuous automatic tuning of a resonant circuit. A resonance voltage of the resonant circuit is phase shifted by a predetermined phase shift Φ degrees and an input voltage signal to a power amplifier driving the resonant circ...
06/06/2006
7053629System and method for detecting the proximity of a body
A system and method for sensing the proximity of an electronic device, in particular, a radio frequency mobile communication device such as a mobile telephone, wireless modem equipped portable computer, or the like to a body employs an antenna capable of altering it...
05/30/2006
7049906Quad band antenna interface modules including matching network ports
Quad band antenna interface modules include a diplexer that is configured to connect to an antenna port, a switching core that is connected to the diplexer, and filters that are connected to the switching core and are configured to provide transmit and receive ports...
05/23/2006
7046967Power regulation using multi-loop control
Improved adjustment of transmission power in a communication system is provided. In one embodiment, in a point to multipoint communication system, transmission power of a subscriber unit is controlled based on power measurements made at a central access point. Power...
05/16/2006
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