Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 8180384 | Transmit data timing control An RF transmitter that, during a transmission session, transmits multiple data slices, which are synchronized to each other by a transmit counter. Typically, the time between transmission of consecutive data slices is constant; however, to synchronize the transmissi... | 05/15/2012 |
| 8164110 | Integrated lateral high-voltage diode and thyristor The present invention relates to integration of lateral high-voltage devices, such as a lateral high-voltage diode (LHVD) or a lateral high-voltage thyristor, with other circuitry on a semiconductor wafer, which may be fabricated using low-voltage foundry technology... | 04/24/2012 |
| 8159309 | Windowing to narrow a bandwidth of an amplitude modulation power supply input signal The present disclosure relates to using windowing to reduce the bandwidth of an amplitude modulation (AM) power supply input signal (PSIS), which is fed to an AM power supply to provide envelope power to an RF power amplifier stage via an AM power supply output sign... | 04/17/2012 |
| 8159056 | Package for an electronic device A method of forming a device is provided. A substrate having a component is provided and a sacrificial layer is formed over the component. The sacrificial layer includes a cavity portion disposed about the component and a tunnel portion adjacent to the cavity portio... | 04/17/2012 |
| 8138858 | Architectures using multiple dual-mode surface acoustic wave devices The present invention relates to dual-mode SAW devices (DMSDs), which may allow for clean layouts of SAW device elements and provide low impedance with reduced insertion loss, and may increase broadband rejection by improving parasitic characteristics. In one embodi... | 03/20/2012 |
| 8134426 | Two-track surface acoustic wave structure without internal pads The present disclosure relates to a two-track surface acoustic wave (SAW) device that has a reduced size compared to a traditional two-track SAW device by eliminating an internal ground connection node of the traditional two-track SAW device. The internal ground con... | 03/13/2012 |
| 8130057 | Lumped cross-coupled Wilkinson circuit The present invention relates to a lumped cross-coupled Wilkinson circuit having a pair of magnetically cross-coupled inductive elements coupled to an isolation network. By magnetically cross-coupling the inductive elements, which have a mutual inductance, the induc... | 03/06/2012 |
| 8130054 | Frequency-adjustable radio frequency isolator circuitry The present invention relates to a frequency-adjustable radio frequency (RF) isolator that may operate as a bandpass filter when processing RF signals in a forward direction and may operate as a notch filter when processing RF signals in a reverse direction. The not... | 03/06/2012 |
| 8121577 | Controllable input impedance radio frequency mixer The present invention is a controllable input impedance RF mixer, which when fed from a high impedance source, such as a current source, provides a high quality factor (Q) impedance response associated with an impedance peak. The high-Q impedance response may be use... | 02/21/2012 |
| 8120426 | Low noise class AB linearized transconductor A transconductor stage is a linearized class AB amplifier having embedded noise filtering that enables a biasing of an in-phase/quadrature (I/Q) modulator core with a low quiescent current. Linearization of the transconductor stage is increased by introducing a smal... | 02/21/2012 |
| 8103224 | Method and apparatus for the integration of a high efficiency power amplifier with an integrated transceiver for wireless communication An integrated transceiver for wireless applications has both a frequency determining means and a power amplifier. A transmission filter suppresses unwanted spurious outputs in an integrated circuit before a power amplifier stage amplifies and transmits the desired s... | 01/24/2012 |
| 8102943 | Variable digital very low intermediate frequency receiver system The present invention is a radio frequency (RF) receiver that uses an RF mixer for tuning to desired frequency bands. The RF receiver down converts a received RF signal into a very low intermediate frequency (VLIF) signal. When receiving a desired RF signal, the fre... | 01/24/2012 |
| 8085754 | Synchronizing a radio frequency transmit message with an asynchronous radio frequency receive message The present invention relates to synchronization circuitry that is used to synchronize an asynchronous received RF message with a transmitted RF message. In one embodiment of the present invention, the synchronization circuitry includes at least one counter, which i... | 12/27/2011 |
| 8080826 | High performance active and passive structures based on silicon material bonded to silicon carbide The present invention discloses and claims the Silicon Carbide based Silicon structure comprising: (1) a Silicon Carbide substrate, (2) a Silicon semiconductor material having a top surface, and either bonded to the Silicon Carbide substrate via the bo... | 12/20/2011 |
| 8076750 | Linearity improvements of semiconductor substrate based radio frequency devices The present invention relates to using a trap-rich layer, such as a polycrystalline Silicon layer, over a semiconductor substrate to substantially immobilize a surface conduction layer at the surface of the semiconductor substrate at radio frequency (RF) frequencies... | 12/13/2011 |
| 8072271 | Termination circuit based linear high efficiency radio frequency amplifier The present disclosure relates to RF power amplifier circuitry that may include a source termination circuit, a load termination circuit, or both used in an unconventional manner to shape amplitude-based amplitude modulation (AM-AM) distortion, amplitude-based phase... | 12/06/2011 |
| 8069542 | Interleaved interdigitated transducers The present invention provides an interleaved IDT that is connected to and overlaps adjacent IDTs. In particular, the interleaved IDT may be connected to both an input IDT and an output IDT via corresponding bus bars. The first bus bar of the interleaved IDT is conn... | 12/06/2011 |
| 8068573 | Phase dithered digital communications system The present invention is a phase dithered digital communications system that includes a digital receiver, and uses phase dithering to spread the energy of one or more system clocks to minimize receiver de-sensitization. Phase dithering uses a single frequency for ea... | 11/29/2011 |
| 8064863 | Image rejection calibration The present invention relates to image rejection calibration in a radio frequency (RF) receiver. In one embodiment, the receiver includes a receiver front-end and an image rejection calibration system. The image rejection calibration system provides a first test sig... | 11/22/2011 |
| 8063705 | Push-pull transimpedance amplifier The present disclosure relates to a push-pull transimpedance amplifier (TIA) that receives a push-pull radio frequency (RF) input current signal having a push current and a pull current and includes a common-emitter pre-amplifier and a dynamic feedback current sourc... | 11/22/2011 |
| 8062930 | Sub-module conformal electromagnetic interference shield The present invention relates to a manufacturing process of a sub-module having an electromagnetic shield. Initially, a meta-module having circuitry for two or more sub-modules is formed. An overmold body is placed over the circuitry for all of the sub-modules. The ... | 11/22/2011 |
| 8061012 | Method of manufacturing a module In one embodiment, a meta-module having circuitry for two or more modules is formed on a substrate, which is preferably a laminated substrate. The circuitry for the different modules is initially formed on the single meta-module. Each module will have one or more co... | 11/22/2011 |
| 8058930 | Capacitively-coupled non-uniformly distributed amplifier The present disclosure relates to a capacitively-coupled non-uniformly distributed amplifier (NDA) having an input line and an output line that are coupled to one another through an input network and DA segments. The input network includes a group of capacitive elem... | 11/15/2011 |
| 8053872 | Integrated shield for a no-lead semiconductor device package The present invention integrates a shield on a flat, no-lead (FN) semiconductor package, which has multiple rows of contact pads along any side. The FN semiconductor package will have at least one inner row and one outer row of contact pads on at least one side. The... | 11/08/2011 |
| 8045643 | Forward and reverse VSWR insensitive power detection using quadrature downconversion A system and method for detecting both the forward and reverse power of a power amplifier are provided. The power amplifier is a quadrature power amplifier including an in-phase amplifier circuit and a quadrature-phase amplifier circuit. A radio frequency (RF) input... | 10/25/2011 |
| 8035449 | Capacitively-coupled distributed amplifier with baseband performance The present disclosure relates to a capacitively-coupled distributed amplifier (DA) having an input line and an output line that are coupled to one another through a broadband interface network and DA segments. The input line receives an input signal and the output ... | 10/11/2011 |
| 8035397 | Utilizing computed battery resistance as a battery-life indicator in a mobile terminal An over-voltage detection and correction system for a transmitter of a mobile terminal that accounts for battery droop during a transmit burst is provided. In general, prior to ramp-up for a first transmit burst, a voltage of the battery of the mobile terminal at a ... | 10/11/2011 |
| 8035280 | MEMS vibrating structure using a single-crystal piezoelectric thin-film layer having domain inversions The present invention relates to a micro-electro-mechanical systems (MEMS) vibrating structure supported by a MEMS anchor system, and includes a single-crystal piezoelectric thin-film layer having domain inversions, which determine certain vibrational characteristic... | 10/11/2011 |
| 8020026 | Phase-aligning corrected and uncorrected clocks The present invention relates to providing a system clock signal that is based on either a first clock signal that is capable of being frequency-corrected or a second clock signal that is not capable of being frequency-corrected, depending on system needs. When the ... | 09/13/2011 |
| 8011074 | Method for manufacture of piezoelectric substrate for a saw device The present invention provides a composite structure having a supporting substrate between a piezoelectric substrate and a compensation layer. The materials used to form the piezoelectric substrate and the compensation layer in isolation, have higher thermal coeffic... | 09/06/2011 |
| 8009762 | Method for calibrating a phase distortion compensated polar modulated radio frequency transmitter The present invention is a method for calibrating a phase distortion compensated polar modulated RF transmitter, which uses amplitude pre-distortion to compensate for phase distortion, called AMPM compensation. Some embodiments of the present invention may include a... | 08/30/2011 |
| 8005448 | Radio frequency duplex filter for removing transmit signals from a receive path The present invention is an RF duplex filter that is used to remove transmit signals from the receive path of a full duplex transceiver. The RF duplex filter includes a notch filter for blocking signals at a transmit frequency and a bandpass filter for enhancing sig... | 08/23/2011 |
| 8005443 | Design for testability circuitry for radio frequency transmitter circuitry The present invention is design for testability (DFT) circuitry used with RF transmitter circuitry to enable RF parameter adjustments, which provide compliance with requirements, to configure the RF transmitter circuitry for a particular application or range of appl... | 08/23/2011 |
| 8005441 | DC offset correction of a power detector used with a continuous transmission radio frequency signal The present invention relates to estimating a direct current (DC) offset of a power detection circuit when an estimated instantaneous amplitude of a continuous-transmission amplitude-modulated (AM) radio frequency (RF) signal is below a first threshold. The power de... | 08/23/2011 |
| 8004269 | Wide bandwidth measurement of RF power into an arbitrary impedance load The present invention relates to a radio frequency (RF) power measurement circuit that measures delivered power to a load. The RF power measurement circuit includes a measurement RF transmission line coupled to the load, and measurement and power calculation circuit... | 08/23/2011 |
| 7999643 | Providing a common environment for multiple MEMS devices The present invention relates to providing a uniform operating environment for each of multiple devices by providing a common environment to the devices. The common environment is provided by multiple cavities, which are interconnected by at least one environmental ... | 08/16/2011 |
| 7999197 | Dual sided electronic module A method for making a dual sided electronic module. A substrate has a first surface that is substantially parallel to a second surface. The second surface forms a cavity extending into an interior portion of the substrate. The substrate has at least one through hole... | 08/16/2011 |
| 7991071 | AM to PM correction system for polar modulator A transmitter includes a polar modulator that creates phase and amplitude signals which in turn drive a power amplifier. To compensate for AM to PM conversion of the amplitude signal into the amplified signal, a compensation signal is generated from the amplitude si... | 08/02/2011 |
| 7990232 | Anchor/support design for MEMS resonators Micro-Electro-Mechanical Systems (MEMS) resonator designs having support structures that minimize or substantially reduce anchor losses, thereby improving a quality factor (Q) of the MEMS resonators, are provided. In general, a MEMS resonator includes a resonator bo... | 08/02/2011 |
| 7989889 | Integrated lateral high-voltage metal oxide semiconductor field effect transistor The present invention relates to integration of a lateral high-voltage metal oxide semiconductor field effect transistor (LHV-MOSFET) with other circuitry on a semiconductor wafer, which may be fabricated using low-voltage foundry technology, such as a low-voltage c... | 08/02/2011 |
