| ZEROG WIRELESS, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20100148831 | BUFFER WITH REMOTE CASCODE TOPOLOGY - A buffer circuit is described for buffering signals between a circuit element and a load. The buffer includes a main transistor and a cascode transistor, as well as a distribution line for transferring signals over a distance between the circuit element and the load. The buffer is arranged in a remote cascode topology such that the cascode transistor is located substantially adjacent to the load and remote from the main transistor. The distribution line transfers signals over the distance from the main transistor to the cascode transistor. This remote cascode topology makes it possible to significantly reduce the power consumption of the buffer—as compared to conventional buffers—while maintaining the maximum bandwidth possible. | 06-17-2010 |
| 20090296853 | Rotation Direction Control for Phase Modulation - A transmitter architecture and method of modulation that include a rotation-direction control circuit for varying the direction of rotation of phase transitions of a phase modulation based on the occurrence of a predetermined pattern of input data. This variation of rotation direction by the rotation-direction control circuit maintains the output spectrum of a modulated signal within the spectral mask requirements of an associated communications standard and thereby enables the use of non-linear power amplifiers in applications that generally require linear amplifiers. | 12-03-2009 |
| 20090278517 | Regulator with Device Performance Dynamic Mode Selection - A voltage regulator device and accompanying methods are provided for providing efficient voltage regulation to an electronic device. Efficient regulator | 11-12-2009 |
| 20090207824 | Wireless Access Point Device - A wireless (such as Wi-Fi or similar) access point is included in or attached to a device, such as a cellular phone, WiMAX device, other mobile device, etc. One or more wireless units wirelessly access a communication network (and in some cases the Internet) through the wireless access point device. Additionally, such a wireless access point device can receive a transmission from a wireless tag that has been attached to an object to be monitored and can forward information from the wireless tag to a target device along with location information. | 08-20-2009 |
| 20090206894 | Phase-Locked Loop with Adaptive Performance - A phase-locked loop capable of being dynamically configured to optimize phase-noise performance during different modes of operation. The phase-locked loop may include a switchable charge pump, loop filter and voltage-controlled oscillator having auxiliary circuit components that may be switched in and out to achieve calibration settings for optimizing phase-noise performance for different modes of operation, while minimizing unnecessary power consumption, and without disturbing the stability of the phase-locked loop. | 08-20-2009 |
| 20090201185 | Analog-to-Digital Conversion Circuit - An analog-to-digital conversion circuit and a method for calibrating an analog-to-digital conversion circuit are provided. A digital translation of an analog voltage is analyzed to determine a characteristic value of the analog voltage. A reference voltage, with which the digital translation is generated, is set to a value that is a minimum amount greater than the characteristic value. Additional embodiments include setting an offset voltage, with which the digital translation is also generated. | 08-13-2009 |
| 20090195946 | Electrostatic Discharge Protection Using an Intrinsic Inductive Shunt - In one embodiment of the present invention, an electrostatic discharge protection circuit provides efficient electrostatic discharge protection to an RFIC. The circuit includes several parts such as an inductor coupled from a first rail to an internal node. A power amplifier transistor having a transconductance control node is coupled to internal circuitry, a first terminal coupled to a second rail, and a second terminal coupled to an internal node. The circuit also comprises a pad coupled to an internal node, and this pad is capable of being coupled to off chip systems such as an antenna. The power amplifier transistor serves as the active device for an RF power amplifier. The inductor serves as one of either a bias inductor or a tank inductor for the RF power amplifier. Additionally the inductor acts as a low impedance path to the first rail to protect the power amplifier transistor during an ESD pulse. | 08-06-2009 |
| 20090195307 | MULTIPLE-PATH POWER AMPLIFIER - An amplifier circuit and method for amplifying a signal efficiently over a plurality of power ranges. The amplifier circuit including a strong amplifier which is efficient over a first power range and a weak amplifier which is efficient over a second power range. An impedance transformation circuit is used for generating a higher potential and providing increased efficiency when the second range of power is present. A circuit biases active the strong amplifier when the first power range of is present and biases active the weak amplifier when the second power range is present. | 08-06-2009 |
| 20090052099 | Hybrid Circuit for Circuit Protection and Switching - A hybrid circuit ( | 02-26-2009 |
| 20090043957 | Method and Apparatus for Updating Data in ROM Using a CAM - A method for providing field updates through the use of a memory emulation circuit with a content addressable memory (CAM) as the intelligent portion of the emulation circuit's arbiter. CAM circuit | 02-12-2009 |
| 20090033298 | Voltage regulator with a hybrid control loop - A voltage regulator circuit and method are provided for regulating a voltage accurately in response to rapid variations in the regulator's load. The voltage regulator utilizes a hybrid loop; an embodiment of such utilization is exemplified by circuit | 02-05-2009 |
| 20090015342 | Fast startup resonant element oscillator - A startup circuit | 01-15-2009 |
| 20080278252 | Calibration of Voltage Controlled Oscillators - A calibration circuit ( | 11-13-2008 |
| 20080278247 | Calibration of Voltage Controlled Oscillators - A calibration circuit ( | 11-13-2008 |
| 20080278244 | Frequency calibration for frequency synthesizers - A calibration circuit ( | 11-13-2008 |
