Abstract: A parasitically-coupled dual-band patch antenna is described. The antenna includes an inner conductor having one or more feed holes. The antenna also includes an outer conductor surrounding the inner conductor in a radial direction. The antenna further includes one or more feeds each having a vertical portion that passes through the feed holes and a horizontal portion that extends in an outward direction from the feed holes toward the outer conductor. The feeds are conductively connected to the outer conductor. The horizontal portion of each of the feeds is separated from and is conductively disconnected from a top surface of the inner conductor.

Abstract: Embodiments include fenestration units with active sound canceling properties, retrofit units with active sound canceling properties and related methods. In an embodiment a fenestration unit with active sound canceling properties can include an glazing unit including an exterior transparent pane, an interior transparent pane, and an internal space disposed between the exterior and interior transparent panes. The fenestration unit can include an active noise cancellation system including an exterior module including a sound input device and a signal emitter. An interior module can include a signal receiver to receive the signal from the signal emitter, and a vibration generator configured to vibrate the interior transparent pane. A sound cancellation control module can control the vibration generator to vibrate the interior transparent pane and generate pressure waves causing destructive interference with a portion of the sound waves received by the sound input device.

Abstract: A satellite signal receiving apparatus and an antenna pattern adjusting method thereof are provided. A coupling relationship between a main antenna and a plurality of pattern adjustment antennas is adjusted to thereby adjust an angle of the antenna pattern so that the average intensity of satellite signals attributed to target satellites and received by an antenna array is higher than a first preset intensity.

Abstract: A system for detection and orbit determination of Earth orbiting objects includes a first plurality of sensors including at least one first antenna. The at least one first antenna is configured to point in a stare mode to broadcast a first detection signal at an angular region centered on an equatorial plane to maximize detection of orbiting objects regardless of altitude, grade, or inclination. The first antenna may be configured to stare at a low inclination angle, and may be configured to stare at one of due east and due west along the equator.

Abstract: Disclosed are various embodiments of Global Navigation Satellite System (GNSS) chipsets or architecture. Based upon a requested accuracy and/or update of a host application, embodiments of the disclosure can calculate position data points on-board the GNSS chipset or allow a host processor to calculate position data points, which can allow the host processor to enter a low power mode if the requested update rate and/or accuracy allow.

Abstract: Antenna apparatus and methods of use and tuning. In one exemplary embodiment, the solution of the present disclosure is particularly adapted for small form-factor, metal-encased applications that utilize satellite wireless links (e.g., GPS), and uses an electromagnetic (e.g., capacitive) feeding method that includes one or more separate feed elements that are not galvanically connected to a radiator element of the antenna. In addition, certain implementations of the antenna apparatus offer the capability to carry more than one operating band for the antenna.

Abstract: A vehicle obstacle detection device comprises: a radar unit provided between a back surface of a bumper and a wheel and configured to detect an obstacle by transmitting a radio wave through the bumper; and a misdetection prevention member for preventing misdetection in the radar unit by suppressing the occurrence of an own-vehicle's wheel reaching wave which is a part of a transmission wave and which passes between a transmitter section of the radar unit and the back surface of the bumper and reaches the wheel of the own vehicle.

Abstract: A method of determining adequacy of acquisition includes: attempting to acquire a satellite signal from a satellite and decoding first satellite orbit data; and determining the adequacy of acquisition of the satellite signal by using the first satellite orbit data and second satellite orbit data that has been acquired from the satellite.

Abstract: Apparatus, the apparatus having at least one processor and at least one memory having computer-readable code stored thereon which when executed controls the at least one processor to perform a method comprising: obtaining in-phase and quadrature samples of a received radio signal at least first and second discrete instances in time; processing the samples to provide information relating to the amplitude and/or phase of the received radio signal at the first and second instances in time; using the amplitude and/or phase information of the received radio signal at the first and second instances in time to determine whether interference is present on the received radio signal; forwarding the complex signal parameters for processing if interference is determined not to be present; and discarding the complex signal parameters without forwarding them for processing if interference is determined to be present.

Abstract: A receiver for receiving both GPS signals and GLONASS signals is provided. This receiver includes an analog front end (AFE), a GPS digital front end (DFE) and a GLONASS DFE for receiving an output of the AFE, and a dual mode interface (DMI) for receiving outputs of the GPS and GLONASS DFEs. Search engines are provided for receiving outputs of the DMI. Notably, certain front-end components of the AFE are configured to process both the GPS signals and the GLONASS signals.

Abstract: A radio frequency signal is frequency-translated to form a complex first intermediate signal where a frequency corresponding to a GPS center frequency is at an intermediate frequency. In a multiplexing conversion unit a complex multiplexed conversion signal which assumes different conversion frequencies is derived from a clock signal where the frequency of the latter is divided alternately by one of two divisors in a divider circuit and further by two in a phase shifter. The conversion signal is mixed with the first intermediate signal in a conversion mixer to provide a multiplexed second intermediate signal where, depending in each case on the conversion frequency, a frequency corresponding to a GLONASS center frequency and a frequency corresponding to a BeiDou center frequency are alternately shifted close to the intermediate frequency. The first intermediate signal and the second intermediate signal are then processed in a baseband unit.

Abstract: The subject matter disclosed herein relates to receiving one or more SPS signals at two or more physically separated antennae. In an aspect, signals from the physically separated antennae may be downconverted into complex digital signals that may undergo further processing to improve one or more performance metrics related to position estimation operations, for example.

Abstract: An electronic device such as a cellular telephone may include transceiver circuitry for handling wireless communications. The transceiver circuitry may include a transceiver such as a cellular telephone transceiver or a wireless local area network receiver and may include a satellite positioning system receiver. Radio-frequency circuitry may be used to couple the transceiver circuitry to antenna structures. When operating the transceiver in different modes of operation, the radio-frequency circuitry may be adjusted to optimize performance. Adjustments to the radio-frequency circuitry may impose phase offsets on satellite positioning system signals that are received through the antenna structures and radio-frequency circuitry. These phase offsets which would otherwise cause degradation in the satellite positioning system receiver can be compensated by applying stored compensating phase offset values to the satellite positioning system receiver during operation.

Abstract: An antenna assembly for receiving the GPS signals in a global positioning system (GPS) receiver module automatically orients the antenna to better receive the GPS signals. The antenna is oriented by a positioner (e.g., a counterweight) that automatically rotates a frame on which the antenna is mounted. The GPS receiver module may also include multiple antennas oriented in different directions to maintain good reception of the GPS signals in any position. The multiple antennas are oriented in a manner so that the poor reception range an antenna is covered by other antennas. Signals from multiple antennas may be combined or chosen for processing by a GPS processor. Also, multiple GPS receiver modules may be deployed in close proximity so that wireless communication between the GPS receiver modules may be established.

Abstract: A method of recording satellite signals for later processing to derive position information. According to one aspect, the method comprises receiving and digitising first and second satellite signals using a first set of parameters; and receiving and digitising third and fourth satellite signals using a second set of parameters. A first time interval between the first and second satellite signals is longer than a second time interval between the reception of the third and fourth satellite signals. The first set of parameters is associated with relatively higher resource usage, while the second set of parameters is associated with relatively lower resource usage.

Abstract: A GNSS receiver includes a RF front end for receiving GNSS ranging signals, a navigation processor for calculating location from the ranging signals, and a repository of static data. The navigation processor includes the static data in the location calculation. Examples of static data include a digital elevation map, coordinates of tunnel entrances for use when the receiver resumes reception of the signals upon exiting a tunnel, and descriptions of structures in sufficient detail to enable multipath mitigation.

Abstract: A receiver for receiving both GPS signals and GLONASS signals is provided. This receiver includes an analog front end (AFE), a GPS digital front end (DFE) and a GLONASS DFE for receiving an output of the AFE, and a dual mode interface (DMI) for receiving outputs of the GPS and GLONASS DFEs. Search engines are provided for receiving outputs of the DMI. Notably, certain front-end components of the AFE are configured to process both the GPS signals and the GLONASS signals.

Abstract: The subject matter disclosed herein relates to a system and method for processing navigation signals received from multiple global navigation satellite systems (GNSS?). In a particular implementation, signals received from multiple GNSS? may be processed in a single receiver channel.

Abstract: Provided is an antenna device for position detection that can determine the current position, using a GPS receiver with a simple structure, with high accuracy comparable to that of an expensive positioning device, and also provided are a position detection device provided with the antenna device and a position detection method. The current position is determined using a GPS that receives signals from satellites orbiting around the earth and determines the current position. Data communication is performed with an antenna main body including: an antenna member provided, at an end thereof, with a receiving section for receiving signals from the orbiting satellites; and a rotation mechanism for rotating the antenna member circularly in the horizontal direction at a substantially uniform speed. The current position is determined based on the signals from the orbiting satellites that have been received by the receiving section.

Abstract: A multi-frequency down converter includes first and second signal paths. A common local oscillator/synthesizer drives both of the signal paths. Exemplary applications include GNSS systems operating across superbands. The down converter is adapted for use in a GNSS receiver system.

Abstract: A method of inter-channel bias (ICB) calibration in a global navigation satellite system (GNSS) receiver, the method comprises receiving a plurality of GNSS radio-frequency (RF) signals, converting the plurality of GNSS RF signals into a plurality of GNSS baseband signals utilizing an RF front-end processing unit, generating a measurement result according to the plurality of GNSS baseband signals utilizing a baseband processing unit, and calibrating the measurement result utilizing a plurality of pre-determined inter-channel biases.

Abstract: A receiver for receiving both GPS signals and GLONASS signals is provided. This receiver includes an analog front end (AFE), a GPS digital front end (DFE) and a GLONASS DFE for receiving an output of the AFE, and a dual mode interface (DMI) for receiving outputs of the GPS and GLONASS DFEs. Search engines are provided for receiving outputs of the DMI. Notably, certain front-end components of the AFE are configured to process both the GPS signals and the GLONASS signals.

Abstract: Disclosed are various embodiments of global navigation system tracking and decoding. In one embodiment a method includes obtaining a navigation signal including a sequence of navigation strings. Each navigation string includes symbol encoded navigation data symbols and a time mark sequence (TMS). A location of a TMS within the navigation signal is determined and the TMS and the symbol encoding is removed from a subsequent navigation string based upon the determined location of the TMS to provide a stripped navigation signal. In another embodiment, a global navigation receiver includes a RF front end that obtains a navigation signal including a sequence of navigation strings. The global navigation receiver determines a location of a TMS within the navigation signal and removes the TMS and symbol encoding from a subsequent navigation string based upon the determined location of the TMS to provide a stripped navigation signal.

Abstract: A method of calculating two position fixes, using satellite positioning. The method comprises: using an RF front-end (12), receiving satellite positioning signals; using an analogue-to-digital converter (18), sampling the received signals to generate signal samples; using a processor (20), processing a first set of the samples as they are generated, to calculate a first position fix; storing information associated with the calculation in a memory (22); storing a second set of the samples, or ranging measurements derived from the second set of samples, in the memory (22) for later processing to calculate a second position fix; and later, processing the second set of samples to calculate the second position fix, wherein the calculation of the second position fix is assisted by the information associated with the calculation of the first position fix. Also disclosed are other related methods and apparatus.

Abstract: The invention relates to a mobile geodetic GNSS measuring station (1) for use in a relative satellite-supported positioning system (Global Navigation Satellite System—GNSS) for performing precise measurement tasks. The GNSS measuring station (1) has a housing (10) in which at least one planar, particularly circular disc-shaped GNSS antenna (20) for receiving circularly polarized GNSS satellite signals, a GNSS satellite receiver disposed below the GNSS antenna and having a signal connection to the GNSS antenna (20) and a first broadband radio antenna (30) for receiving and/or transmitting radio signal waves having GNSS correction information in a first frequency band in the frequency range of 400 MHz to 470 MHz are integrated. According to the invention, the first radio antenna (30) is disposed substantially at the height of the GNSS antenna (20) and at least partially encompasses the GNSS antenna (20) in the circumferential direction.

Abstract: The subject matter disclosed herein relates to receiving one or more SPS signals at two or more physically separated antennae. In an aspect, signals from the physically separated antennae may be downconverted into complex digital signals that may undergo further processing to improve one or more performance metrics related to position estimation operations, for example.

Abstract: Methods and apparatus are provided for operatively enabling at least a first receiver path to receive a first signal associated with a first satellite positioning system (SPS), operatively enabling at least a second receiver path to receive a signal associated with at least one other SPS, and subsequently operatively enabling at least the second receiver path to receive a second signal associated with the first SPS.

Abstract: A global positioning system (GPS) system includes a clock module for providing multiple counter values at multiple time points. The GPS system also includes a system module coupled to the clock module. The system module is capable of obtaining a time value for each time point according to a set of signals from a signal source. The system module is further capable of calculating a set of parameters based on the counter values and the time value for each time point, and determining an estimated time value based on the parameters and a present counter value from the clock module.

Abstract: The subject matter disclosed herein relates to receiving one or more SPS signals at two or more physically separated antennae. In an aspect, signals from the physically separated antennae may be downconverted into complex digital signals that may undergo further processing to improve one or more performance metrics related to position estimation operations, for example.

Abstract: A signal processing apparatus for a multi-mode satellite positioning system includes a band-pass filter, a local oscillator circuit, a first mixing circuit, a second mixing circuit, an analog-to-digital converter and a baseband circuit. By properly allocating a local frequency, radio frequency (RF) signals of a Global Positioning System (GPS), a Galileo positioning system and a Global Navigation System (GLONASS) are processed via a single signal path to save hardware cost.

Abstract: A mobile communication terminal includes a terminal body portion, a display portion mounted on the terminal body portion to be rotatable to a first display position and a second display position while being substantially parallel to a surface of the terminal body portion and a single satellite radio receiving antenna provided on the display portion to be integrally rotatable with the display portion and formed to be located on a first rotational position when the display portion is located on the first display position and to be located on a second rotational position when the display portion is located on the second display position, wherein a direction of directivity of the satellite radio receiving antenna is set to a direction inclined upward with respect to a display surface of the display portion by a prescribed angle.

Abstract: A GNSS receiver in a wake up state during a standby mode may acquire ephemeris from received GNSS signals such as GPS signals and/or GLONASS signals. When subsequently transitioning from the standby mode to a normal mode operating at a high frequency clock, the acquired ephemeris may be utilized to generate a navigation solution for the GNSS receiver. The GNSS receiver in the wake up state during the standby mode may be switched to operate at the high frequency clock in order to receive GNSS signals. The GNSS receiver may extract complete ephemeris from the received GNSS signals, and may subsequently transition from the wake up state to a sleep state during the standby mode to save power. Radio frequency front-end components of the GNSS receiver may only be turned on to receive the GNSS signals. The GNSS receiver may transition between the standby mode and the normal mode.

Abstract: A receiver for receiving both GPS signals and GLONASS signals is provided. This receiver includes an analog front end (AFE), a GPS digital front end (DFE) and a GLONASS DFE for receiving an output of the AFE, and a dual mode interface (DMI) for receiving outputs of the GPS and GLONASS DFEs. Search engines are provided for receiving outputs of the DMI. Notably, certain front-end components of the AFE are configured to process both the GPS signals and the GLONASS signals.

Abstract: A GPS RF front-end is disclosed comprising an antenna for receiving GPS signals, an analog to digital converter for sampling received GPS signals and interface circuitry for outputting the GPS signal samples. The GPS RF front-end is configured to vary the sample resolution of GPS signal samples outputted. Also disclosed is a corresponding method of providing a position fix, storage medium and apparatus for the same.

Abstract: A global positioning system (GPS) signal data converter device includes a plurality of output ports configured to connect with and transmit GPS information to devices connected with the output ports, and a processor configured to receive GPS information in a first format, convert the GPS information from the first format into a second format, and to transmit the GPS information to at least two output ports in the first and second formats.

Abstract: A system and method of providing a clock signal to a navigation satellite receiver in a device is disclosed. A clock signal generated by a voltage controlled temperature compensated crystal oscillator (VCTCXO) in a cellular engine of the same device is appropriated to clock a numerically controlled oscillator (NCO) programmed to generate an adjusted clock signal suitable for use in receiving signals from navigation satellites and to heterodyne them down to baseband or an intermediate frequency for processing. Preferably, if the cellular engine has an automatic frequency control (AFC) module for adjusting the voltage control input to the VCTCXO to compensate for a change in the operating environment of the cellular engine, the AFC module modifies the control word in the NCO to counteract such adjustment so that the adjusted clock signal provided to the navigation satellite receiver is not unduly impacted.

Abstract: The positioning apparatus and position apparatus control method are able to efficiently receive useful signals without special circuitry.

Abstract: The subject matter disclosed herein relates to receiving one or more SPS signals at two or more physically separated antennae. In an aspect, signals from the physically separated antennae may be downconverted into complex digital signals that may undergo further processing to improve one or more performance metrics related to position estimation operations, for example.

Abstract: A GPS signal from a GPS antenna is provided not only for a navigation apparatus through an amplifier but also for a data communication module (DCM) through a TEL antenna for establishing communication with a station for data exchange, by devising high frequency switches that is controlled by an ON/OFF of an antenna power supply on both of an input side and an output side of the amplifier. When the amplifier is in operation, one of the switches is turned on for distributing the GPS signal to a TEL antenna side. When the amplifier is not in operation, the other switch is turned on for transmitting the GPS signal from the GPS antenna to the TEL antenna side. In this manner, the GPS signal is provided for both of the navigation apparatus and the data communication module without deteriorating signal quality from the GPS antenna.

Abstract: A hybrid antenna unit includes a circuit board having top and bottom surfaces, a planer antenna element which is mounted on the top surface of the circuit board and which receives first and second radio waves, an antenna base and a top cover that cover the circuit board and the planer antenna element. A bar antenna element stands on the top cover in a slanting position. A processing unit is mounted on the bottom surface of the circuit board and is connected to the planer antenna element. The processing unit processes the first and the second radio waves. A shielding case is mounted on the bottom surface of the circuit board and shields the processing unit. A booster circuit is mounted on the circuit board and is for use in the bar antenna element.

Abstract: A signal processing apparatus for a multi-mode satellite positioning system includes a band-pass filter, a local oscillator circuit, a first mixing circuit, a second mixing circuit, an analog-to-digital converter and a baseband circuit. By properly allocating a local frequency, radio frequency (RF) signals of a Global Positioning System (GPS), a Galileo positioning system and a Global Navigation System (GLONASS) are processed via a single signal path to save hardware cost.

Abstract: A receiver that receives a plurality of signals that are modulated with a common carrier, where each signal of said signals originates at a different source and experiences a transit delay and Doppler frequency shift before reaching the receiver, and where the transit delay and Doppler frequency shift are related to position and movement of each of the respective sources. The receiver includes means, such as a directional antenna, to ensure that the received signals are bona fide, or at least not subject to the same bogus signal or signals to which a second receiver may be subjected.

Abstract: A method involves digitizing an analog Global Positioning System (GPS) signal received directly from an antenna, storing the digitized analog GPS signal into data buffer storage units, and transmitting the data buffer storage units over a network. The GPS signal received directly from an antenna may be an unprocessed GPS signal. The method may include receiving and queuing the data buffer storage units, converting the digitized analog GPS signal from the data buffer storage units into an analog GPS signal, and transmitting the analog GPS signal to a GPS receiver. The data buffer storage units may be UDP packets and may be multicast over an IP network. The data buffer storage units may be ATM cells and may be transmitted over an ATM network. The analog GPS signal may be converted from electronic to photonic form, or vice versa, prior to storage in the data buffer storage units.

Abstract: A navigation system comprises a radio receiver for the data acquisition of navigation satellite signals, a memory in which to store samples of those signals, and a post-processing unit to replay and signal-process the data in the memory to extract an original position fix for the radio receiver when it acquired the original navigation satellite signals.

Abstract: A wireless GNSS receiver, for example a Bluetooth® receiver, including a bidirectional link to the host, and an update client, for downloading extended ephemeris data from the host, by the Bluetooth® link. The invention reuses the protocol used for NMEA data transfer, in order to send the extended ephemeris data up to the receiver. Hence, the extended ephemeris data can be sent without having to instantiate any other type of connection to the receiver. The invention reduces the cost and complexity of BT-GPS receivers that want to make use of extended ephemeris technology in order to reduce the time to first fix of GPS receivers left off for more than four hours.