Patent application number | Description | Published |
20080232446 | METHOD AND SYSTEM FOR MATCHING AN INTEGRATED FM SYSTEM TO AN ANTENNA UTILIZING ON-CHIP MEASUREMENT OF REFLECTED SIGNALS - Aspects of a method and system for matching an integrated FM system to an antenna utilizing on-chip measurement of reflected signals are provided. In this regard a portion of a signal output by an integrated FM radio transmit block and reflected by an antenna may be routed to an on-chip signal analyzer. Accordingly, measurements of the reflected signals may be utilized to configure a matching network in order to provide a best impedance match between the FM radio and the antenna. In this regard, a best impedance match may maximize radiation efficiency and/or radiated power. Additionally, the configuration of the matching network may incorporate a correction algorithm/offset experimentally determined via a calibration utilizing external components. | 09-25-2008 |
20080232447 | METHOD AND SYSTEM FOR CALIBRATION IN AN FM TRANSCEIVER SYSTEM - Aspects of a method and system for calibration in an FM transceiver system may include: in an integrated FM system comprising an FM radio transmitter, an FM radio receiver and a common local oscillator, generating via the common local oscillator, one or more RF carrier signals and corresponding phase-shifted versions of the generated one or more RF carrier signals. The FM radio transmitter and/or the FM radio receiver may be calibrated based on an RF calibration signal generated from the one or more RF carrier signals and/or the corresponding phase-shifted versions of the generated one or more RF carrier signals. A phase between the one or more RF carrier signals and the corresponding phase-shifted versions of the generated one or more RF carrier signals may be adjusted based on the generated RF calibration signal. An in-phase baseband signal component associated with the generated RF calibration signal may be zeroed. | 09-25-2008 |
20080232448 | METHOD AND SYSTEM FOR OPTIMIZING AN FM TRANSMITTER AND FM RECEIVER IN A SINGLE CHIP FM TRANSMITTER AND FM RECEIVER SYSTEM - Methods and systems for optimizing an FM transmitter and FM receiver in a single chip FM transmitter and receiver are disclosed and may include receiving an FM signal from each of multiple selected antenna configurations. The received signal strength obtained for each configuration may be measured and stored in a memory, and FM signals may be transmitted and/or received utilizing a configuration that generates a received signal strength above a desired threshold from the measurement. The FM transmitter and receiver may be integrated on-chip, and may be impedance matched to the antennas utilizing selectable capacitors integrated on-chip and/or off-chip and selectable inductors located off-chip. The multiple antennas may comprise antennas that are internal and antennas that are external to the wireless device, each of which may be tuned for one or more wireless protocols. One or more of the antennas may comprise metal components within the wireless device. | 09-25-2008 |
20080233869 | METHOD AND SYSTEM FOR A SINGLE-CHIP FM TUNING SYSTEM FOR TRANSMIT AND RECEIVE ANTENNAS - Aspects of a method and system for a single-chip FM tuning system for transmit and receive antennas may include in a frequency-modulation (FM) radio system comprising an integrated FM radio transmitter and FM radio receiver: receiving via a receive antenna for the FM radio system a radio-frequency (RF) signal transmitted from a transmit antenna of the radio transmitter. A frequency response of said receive antenna and/or a frequency response of said transmit antenna may be adjusted based on said received RF signal. The frequency response of the receive antenna and/or the transmit antenna may be adjusted dynamically, autonomously, sequentially and/or simultaneously. The receive antenna and/or the transmit antenna may be adjusted via a programmable filter, which may comprise inductive and capacitive components. The programmable filter may comprise a programmable array of inductors and/or a programmable array of capacitors. | 09-25-2008 |
20080233881 | METHOD AND SYSTEM FOR MEASURING AND OPTIMIZING INTEGRATED ANTENNA PERFORMANCE - Methods and systems for measuring and optimizing integrated antenna performance are disclosed and may include transmitting FM signals over a range of frequencies utilizing one or more antenna configurations. The FM transmitter may be calibrated based on a signal received by one of a plurality of wireless protocol receivers in the wireless device. The wireless device may include one or more other corresponding transmitters that utilize other wireless protocols. The transmitted FM signals may be received by a test set, which may then transmit a signal utilizing a different wireless protocol for adjusting the FM transmitter. The frequency of the transmitted FM signals may be varied utilizing a tunable oscillator, and the antenna configurations may be adjusted accordingly by impedance matching them to the FM transmitter. The FM transmitter and FM receiver and the tunable oscillator may be integrated within a single chip. | 09-25-2008 |
20080233890 | METHOD AND SYSTEM FOR AUTO DETECTING AND AUTO SWITCHING ANTENNAS IN A MULTI-ANTENNA FM TRANSMIT/RECEIVE SYSTEM - Methods and systems for auto detecting and auto switching antennas in a multi-antenna FM transmit/receive system are disclosed and may include detecting when an external antenna may be coupled to an external port of the wireless device and utilizing the external antenna for transmitting and/or receiving FM signals. The decoupling of an external antenna from an external port may be detected, which may cause the FM radio transmitter/receiver to be configured to transmit and/or receive FM signals utilizing antennas internal to the wireless device. One or more test signals, which may include AC signals, may be generated within the chip for detecting whether an external antenna may be coupled to an external port. A reflected signal from an external port may be measured and compared to a prestored value corresponding to a reflection due to an open circuit at the one or more external ports of the wireless device. | 09-25-2008 |
20080233900 | METHOD AND SYSTEM FOR CALIBRATION IN AN FM TRANSCEIVER SYSTEM WITH OFF-CHIP CONTROL - Aspects of a method and system for calibration in an FM transceiver system with off-chip control may include, in an integrated FM system comprising an FM radio transmitter, an FM radio receiver and a common local oscillator, receiving one or more control signals that control calibration of the integrated FM system. Responsive to the one or more control signals, one or more RF carrier signals and corresponding phase-shifted versions of the generated one or more RF carrier signals may be generated via the common local oscillator. The FM radio transmitter and/or the FM radio receiver may be calibrated based on an RF calibration signal generated from the one or more RF carrier signal and/or the corresponding phase-shifted versions of the generated one or more RF carrier signals. An in-phase baseband signal component associated with the generated RF calibration signal may be zeroed. | 09-25-2008 |
20080233911 | METHOD AND SYSTEM FOR UTILIZING A POWER SOURCE AS AN FM ANTENNA FOR AN INTEGRATED FM RADIO - Aspects of a method and system for utilizing a power source as an FM antenna for an integrated FM radio are provided. In this regard, aspects of the invention may enable reception of FM radio signals via an external component coupled to a power port of a communication device. In this regard, an external component may act as an antenna for the reception of FM radio signals. Additionally, a device may be enabled to determine whether to use a connected external component or use an antenna within the device based on the power levels of FM radio signals received via each. An inductor may be utilized in order to enhance the resonance of the external component at FM radio frequencies. Additionally, an output impedance of a device may be matched to an external component via a configurable matching network. | 09-25-2008 |
20090143060 | REMOTE HOST CONTROLLER INTERFACE CONTROL FOR DEVICES - A device may include a communication module that is arranged and configured to establish a wireless connection with a remote device and a remote mode module that is arranged and configured to receive and process an enabling command that places the device in a host controller interface (HCI) remote control mode, where the HCI remote control mode enables the device to be controlled by the remote device using one or more HCI commands over the wireless connection. | 06-04-2009 |
20100279633 | METHOD AND SYSTEM FOR MEASURING AND OPTIMIZING INTEGRATED ANTENNA PERFORMANCE - A method and system for wireless communication is provided and may include transmitting FM radio signals utilizing antenna configurations in a wireless device including a frequency modulation (FM) radio transmitter, an FM radio receiver, and one or more other receivers. The transmitter may be calibrated based on a signal received from a second wireless device via the other receivers. The second wireless device may include an FM radio receiver and corresponding other transmitters that may utilize other wireless protocols. The signal received at the wireless device may be generated at the second wireless device via the other transmitters. A frequency of the transmitted FM radio signals may be varied, and may be utilized adjust the antenna configurations. An impedance of the antenna configurations may be matched based on the frequency variation. A capacitive and/or inductive load for the matching of the impedance of the antenna configurations may be programmably adjusted. | 11-04-2010 |
20110171916 | Auto Detecting and Auto Switching Antennas in a Mutli-Antenna FM Transmit/Receive System - Methods and systems for auto detecting and auto switching antennas in a multi-antenna FM transmit/receive system are disclosed and may include electronically detecting when an external antenna may be coupled to an external port of the wireless device and utilizing the external antenna for transmitting and/or receiving FM signals. The decoupling of an external antenna from an external port may be detected, which may cause the FM radio transmitter/receiver to be configured to transmit and/or receive FM signals utilizing antennas internal to the wireless device. One or more test signals, which may include AC signals, may be generated within the chip for detecting whether an external antenna may be coupled to an external port. A reflected signal from an external port may be measured and compared to a prestored value corresponding to a reflection due to an open circuit at the one or more external ports of the wireless device. | 07-14-2011 |
20110183628 | METHOD AND SYSTEM FOR MATCHING AN INTEGRATED FM SYSTEM TO AN ANTENNA UTILIZING ON-CHIP MEASUREMENT OF REFLECTED SIGNALS - Aspects of a method and system for matching an integrated system to an antenna utilizing on-chip measurement of reflected signals are provided. In a chip comprising at least a portion of a receiver and at least a portion of a transmitter, a best impedance match between an antenna and the chip may be determined based on on-chip measurement of one or more signals reflected from the antenna. The best impedance match between the antenna and the chip may be determined utilizing a correction algorithm. The correction algorithm may be determined utilizing data from an external test set that measures signals transmitted by the chip via the antenna. The reflected signals may be routed to a signal analyzer via on on-chip directional coupler. The best impedance match may be determined for each of a plurality of frequencies and/or each of a plurality of transmit signal strengths. | 07-28-2011 |