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| Number | Title | Issue Date |
| 7409192 | Method and apparatus for frequency synthesis in direct-conversion transmitters A method and apparatus for direct-conversion transmission generates a first frequency signal that is non-harmonically related to a transmit frequency signal, divides the first frequency signal to obtain a mixing frequency signal, divides the first frequency signal t... | 08/05/2008 |
| 7403758 | Linearized and balanced mixer apparatus and signal mixing method Method and apparatus are provided for linearized balanced signal mixing. A signal mixing circuit (10) for translating a radio frequency (RF) signal is provided comprising an input amplifier (12), a mixer network (14), and an output buffer amplif... | 07/22/2008 |
| 7400908 | Mobile communication terminal A mobile communication terminal comprises three body elements connected by a multi-functional hinge member for movement from a closed folded operative position to a flipped open first operative position revealing a display carried by one body element and a first key... | 07/15/2008 |
| 7392026 | Multi-band mixer and quadrature signal generator for a multi-mode radio receiver A multi-band high gain mixer and quadrature signal generator allows a receiver system to receive signals at multiple frequency bands without requiring significant hardware duplication. A single mixer directly receives any of three communication frequency bands such ... | 06/24/2008 |
| 7383024 | Multi-band handset architecture Architectures for a class of multi-band handsets are described. These architectures separate linearity requirements from isolation requirements and reduce the number of throws on switches requiring linearity through the use of distributed switching, filter structure... | 06/03/2008 |
| 7383027 | Transmission circuit A transmission circuit capable of transmitting a modulated wave signal using polar modulation in a broad band and with low power consumption is provided. The transmission circuit generates an amplitude signal and a phase signal based on data to be transmitted, and s... | 06/03/2008 |
| 7383031 | Receiving circuit for radio-wave clock broadcast wave A receiving circuit for a radio-wave clock broadcast wave having a frequency converter that converts a received signal of the radio-wave clock broadcast wave into a signal of a frequency in the bandwidth of an AM radio broadcast. The converted-into signal is input t... | 06/03/2008 |
| 7383034 | Frequency conversion circuit, modulation circuit, polar modulation transmitting circuit, quadrature modulation transmitting circuit, communication instrument, and frequency conversion method A frequency conversion circuit is provided capable of suppressing noise converted from about a frequency twice as large as a local signal to a reception band frequency, which performs modulation by mixing an input signal with a local signal. The frequency conversion... | 06/03/2008 |
| 7379718 | Method and apparatus to manage power consumption of a semiconductor device Briefly, a method an apparatus of a power management system of a semiconductor device capable of managing a power consumption of the semiconductor device by varying an operating voltage of the semiconductor device according to a voltage value based on a reference nu... | 05/27/2008 |
| 7376398 | Implementing a smart antenna in wireless local area network A method for implementing a smart antenna in establishing association between a station (STA) and an access point (AP) in a wireless local area network begins by transmitting a beacon frame by the AP on one antenna beam. The beacon frame is received at the STA, whic... | 05/20/2008 |
| 7376405 | Receiver circuit Interruption of a reception signal is achieved by placing a first low noise amplifier into the sleep state, and short-circuiting a shunt switch provided between differential input terminals of a second low noise amplifier during a DC offset canceling period. Further... | 05/20/2008 |
| 7369817 | Semiconductor integrated circuit A pin layout which prevents degradation of a frequency characteristic of a low noise amplifier and a receiving mixer included in a semiconductor integrated circuit for dual-band transmission/reception wherein the circuit of the low noise amplifier is provided at a p... | 05/06/2008 |
| 7369874 | Apparatus and method for improving GPS receive sensitivity in mobile terminal Provided is a Global Positioning System (GPS) receive sensitivity-improving apparatus and method in a Code Division Multiple Access (CDMA) mobile terminal, which improves a GPS receive sensitivity by preventing a reference frequency variation caused by a thermal tra... | 05/06/2008 |
| 7369831 | Radio wave receive, radio wave reception integrated circuit, wave clock, and repeater An SW control circuit turns ON and OFF a switch circuit provided between a reception antenna and an RF amplifier circuit, based on a noise removal control signal which is generated by a timing generation circuit and has a constant pulse width and a constant pulse in... | 05/06/2008 |
| 7366479 | Mobile communication terminal having an external antenna Disclosed is a mobile communication terminal including a separate antenna for receiving multimedia public broadcasting signals. The mobile communication terminal has a sender/receiver antenna, a diversity antenna for performing a diversity function, a diplexer conne... | 04/29/2008 |
| 7363020 | Diode mixer A diode mixer comprises a mixer diode section which has a first circuit including an inductor and a capacitor connected in series and a diode connected in parallel with the first circuit and which includes a first connecting portion to which one end of the first cir... | 04/22/2008 |
| 7363017 | High frequency module and manufacturing method thereof A high frequency module used as a unit circuit making up a phased array antenna, in which the module may be reduced in size with reduction in cost. A high frequency module 10 includes a dielectric substrate 1 having both surfaces metallized. The dielec... | 04/22/2008 |
| 7363012 | Transmission power control device and method thereof, computer program for transmission power control device, and radio transmitter A transmission power control device which amplifies in a driver amplifier 2, and in a power amplifier 4 to which the output from the driver amplifier is inputted, so that the power of a signal to be transmitted may become predetermined target transmiss... | 04/22/2008 |
| 7359694 | Carbon nanotube devices and method of fabricating the same An RF mixer includes a diode quad including first, second, third and fourth carbon nanotube diodes, each carbon nanotube diode including a p-n junction The mixer also includes a RF input coupled each of the diodes, and a local oscillator input coupled with each of t... | 04/15/2008 |
| 7359679 | Multi-access system and method using multi-sectored antenna A wireless access point is equipped with both an omnidirectional antenna and a directable antenna that can be selectively directed to any of a plurality of directional spaces overlapping the network space served by the omnidirectional antenna. The directable antenna... | 04/15/2008 |
| 7356313 | Method to enable open loop antenna transmit diversity on channels having dedicated pilots The use of the STTD is enabled in a network so that the common channels (CPICH etc.) do not need to be transmitted using transmit diversity, but the STTD can be enabled only for channels having dedicated pilots and which are intended for the UEs supporting this func... | 04/08/2008 |
| 7356320 | Apparatus and method for removing DC offset in a frequency direct-conversion device An apparatus for removing a DC offset during frequency direct conversion in a reception device of a wireless communication system. In the apparatus, an adder receives a digital baseband signal comprising a DC component, receives an estimated DC offset value, and cal... | 04/08/2008 |
| 7353000 | Receiver monitoring and alert system A method and system are provided in which a user is enabled to create a preferred playlist of the user's favorite songs. An input device allows the user to add and/or delete songs from this preferred playlist. In an exemplary embodiment, songs playing on several rad... | 04/01/2008 |
| 7349680 | Method and system for using PSK sync word for fine tuning frequency adjustment In RF transceivers, a method and system for using phase shift key (PSK) sync word for fine tuning frequency adjustment are provided. One aspect of the invention provides for adjusting a local oscillator frequency in a radio frequency (RF) receiver when a residual DC... | 03/25/2008 |
| 7346317 | Dynamic gain and phase compensation for power amplifier load switching Methods and apparatus are provided for gain and phase compensation in a radio frequency (RF) transmitter (108). The RF transmitter (108) has at least one power amplifier (PA) (205) for providing a transmitted signal having a signal power therefr... | 03/18/2008 |
| 7343177 | Modular ear-piece/microphone (headset) operable to service voice activated commands The present invention provides a modular headset operable to support both voice communications and voice activated commands. This may involve the use of multiple voice CODECs to process voice communications and voice activated commands. The modular headset includes ... | 03/11/2008 |
| 7343181 | Wireless communication device having electromagnetic compatibility for hearing aid devices A wireless communication device for minimizing electromagnetic interference with hearing aid devices. The wireless communication device comprises a lower housing (112, 312, 412, 512, 612) and an upper housing (114, 314, 414, 514, 514) adjacent to the l... | 03/11/2008 |
| 7340237 | Dual-band active filter The present invention discloses a dual-band active filter having filtering response and positive pass-band gain. The dual-band active filter includes an input match unit for gain match of the dual-band active filter and for having a band-pass filtering response; a f... | 03/04/2008 |
| 7340224 | Devices for reducing the dynamic range of signals in transmitters of communication systems A device reduces the dynamic range of a signal at a first point along a signal processing direction in a transmitter of a communication system. The device includes an input to which an input signal is applied, a correction prediction device, a delay device, an addit... | 03/04/2008 |
| 7340220 | Phase locked loop with power distribution A phase locked loop includes a detection module, a control conversion module, a controlled oscillation module, a divider module, and a power distribution module. The detection module is operably coupled to produce a difference signal based on a difference between a ... | 03/04/2008 |
| 7340222 | Method for implementing a RF module on a motherboard A method for implementing a wireless radio frequency (RF) module on a motherboard is described. First, the whole wireless RF module is formed on a daughter board, and at least one through hole is formed at or near the edge of the daughter board. Finally, the daughte... | 03/04/2008 |
| 7333781 | Power correction loop for a power amplifier A system is provided for correcting an output power of a power amplifier in a transmit chain of a mobile terminal. In one embodiment, the system includes output power correction circuitry that corrects the output power of the power amplifier during ramp-up for a tra... | 02/19/2008 |
| 7333790 | Method and apparatus for generating arbitrary phase shift using a phase shifter based on adding two perpendicular vectors with variable gains A radio frequency (RF) phase shifter having an RC-CR circuit that includes a first capacitor having a first capacitor node and a second capacitor node and a first resistor coupled between the first capacitor node and a ground. The RC-CR circuit also includes a secon... | 02/19/2008 |
| 7330698 | Intelligent spectrum management in a multiple input multiple output (MIMO) wireless communications system A wireless broadband communications system that increases data throughput and link availability through more efficient use of the electromagnetic spectrum allocated to the system. In one mode of operation, the system periodically measures a noise or interference lev... | 02/12/2008 |
| 7330702 | Method and apparatus for inter-chip wireless communication In one embodiment, the disclosure relates to a method and apparatus for inter-chip wireless communication system. The system includes a first microprocessor having a plurality of non-contact ports and a first RF communication circuit integrated with the first microp... | 02/12/2008 |
| 7330697 | Installation technique for a multiple input multiple output (MIMO) wireless communications systems Techniques for facilitating and reducing the costs associated with the installation of a wireless broadband communications system. In one mode of operation, the system employs a first transceiver to identify n channels having the n lowest levels of noise and interfe... | 02/12/2008 |
| 7324832 | Method and system for a mobile architecture that supports a cellular or wireless network and broadcast utilizing an integrated single chip cellular and broadcast silicon solution In an RF communication system, aspects for supporting cellular or wireless network and broadcast utilizing an integrated single chip cellular and broadcast silicon solution may comprise receiving in a mobile terminal, a plurality of cellular frequency band communica... | 01/29/2008 |
| 7319891 | Foldable cellular phone A foldable cellular phone includes a first housing, a first protruding portion, a second housing, and a second protruding portion. The first housing includes a first hinge part, the first protruding portion being disposed on the first hinge part. The second housing ... | 01/15/2008 |
| 7317905 | Radio-controlled clock and method for gaining time information Time signals for controlling a radio clock are transmitted by a transmitter and received by a receiver as amplitude modulated time signals, formed of a multitude of time frames. Each time frame has a constant duration. These time signals are first automatically ampl... | 01/08/2008 |
| 7317904 | DC offset cancel circuit A DC offset cancel circuit includes an analog adder 1 to whose one input a baseband analog signal output from a high-frequency reception section is input and to whose other input an analog correction signal output from a D/A converter 7 is input, and w... | 01/08/2008 |
