Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8073414 | Auto-tuning system for an on-chip RF filter A Radio Frequency Receiver on a Single Integrated Circuit (“RFSIC”) is described. The RFSIC may include a mixer, a phase-locked loop (“PLL”) in signal communication with the mixer, and an on-chip auto-tuned RF filter in signal communication with both the mix... | 12/06/2011 |
| 8072376 | Method and apparatus for mitigating the effects of cross correlation in a GPS receiver A positioning system receiver that mitigates cross correlation of received signals from positioning system satellite vehicles by generating the strong satellite vehicle signal and subtracting it from the received signal before correlation while eliminating the need ... | 12/06/2011 |
| 8041330 | Wireless device capable of producing an emergency beacon A wireless device capable of producing an emergency beacon signal is disclosed. The wireless device has a radio portion and may include a beacon transmitter and a controller in signal communication with the radio portion and beacon transmitter. The controller is cap... | 10/18/2011 |
| 8013787 | Control and features for satellite positioning system receivers Control and feature systems for processing signals from a satellite positioning system include an expert system receiver manager; a joint detection, carrier centering and bit sync acquisition subsystem; peak detection; a multi-dimensional measurement interpolation s... | 09/06/2011 |
| 7999733 | Fast reacquisition of a GPS signal A receiver in receipt of a plurality of pseudo noise codes, where each of the pseudo noise codes originates from a GPS transmitter and a plurality of chips make up each pseudo noise code with an offset between 511 chips before a pseudo noise code boundary and 512 ch... | 08/16/2011 |
| 7995683 | Noise floor independent delay-locked loop discriminator A system and method for providing code tracking in a CDMA based communications receiver. In example systems and methods, a CDMA receiver, such as a GPS receiver, receives a signal and demodulates the signal to yield a digital IF signal. The digital IF signal is down... | 08/09/2011 |
| 7994977 | Method and apparatus for a GPS receiver capable or reception of GPS signals and binary offset carrier signals A system and method capable of mitigating the migration from the current GPS system to the Galileo system and allow a single satellite system positioning receiver to process both GPS signals and Galileo signals. ... | 08/09/2011 |
| 7986952 | Method and apparatus for transmitting position data using control channels in wireless networks A cellular telephone for use with a cellular telephone network includes a GPS receiver section. Position determination related information is transmitted to and from the cellular telephone using a control channel. ... | 07/26/2011 |
| 7929928 | Frequency phase correction system A frequency phase correction system and method are described that provides a receiver with a greater ability to lock onto relatively weak radio frequency signals by determining and estimating an amount of frequency error in a local frequency reference of the receive... | 04/19/2011 |
| 7904110 | System and method for receiving digital satellite radio and GPS A combined Global Position System (“GPS”) and radio system for receiving GPS signals and radio signals is disclosed. The combined GPS and radio system includes a controller that controls a switchable frequency source and a mixer in signal communication with the ... | 03/08/2011 |
| 7877104 | Method for synchronizing a radio network using end user radio terminals The present invention discloses a method and system for monitoring a wireless network clock compared to an absolute time scale using the user mobile stations themselves. The major advantage is the capability to transfer GPS time to a Mobile Station in a wireless net... | 01/25/2011 |
| 7792650 | Edge-aligned ratio counter An Edge-Aligned Ratio Counter (EARC) that includes at least one processor coupled to at least one counter circuit is provided for determining a ratio between two clock signals by receiving a first and a second value in response to a first clock signal and generating... | 09/07/2010 |
| 7792639 | Host based satellite positioning systems Methods and systems consistent with the present invention provide a host based positioning system. The host based positioning system includes a tracker hardware interface that connects to a dedicated hardware space vehicle tracker. The tracker hardware interface rec... | 09/07/2010 |
| 7741994 | Ionospheric error prediction and correction in satellite positioning systems A GPS server capable of receiving information for use in determining ionospheric errors using mathematical formulas and sending ionospheric error correction information to GPS receivers that are in a location capable of receiving the ionospheric error correction inf... | 06/22/2010 |
| 7672675 | System of utilizing cell information to locate a wireless device A system is described that utilizes the measured characteristics of a cell site or a plurality of cell sites (100, 102, 104) and the cellular identification to selectively provide a wireless device (118) with location aiding from a cellular network ser... | 03/02/2010 |
| 7672361 | System and method for despreading in a spread spectrum matched filter Implementation of an improved matched filter system for despreading a PN code from a spread spectrum signal utilizes a matched filter system that may be broadly conceptualized as a system that optimizes the number of multipliers and adders utilized by the system in ... | 03/02/2010 |
| 7639724 | RF converter with multiple mode frequency synthesizer compatible with a 48 Fo GPS baseband processor An RF-to-IF converter includes radio frequency (RF) to intermediate frequency (IF) processing circuitry and a frequency synthesizer for generating a local oscillator signal and clocking signals. The frequency synthesizer includes a local oscillator (LO) output coupl... | 12/29/2009 |
| 7639180 | Dynamic memory allocation and sharing in electronic systems A method and system for dynamic memory allocation and sharing in electronic systems. Embodiments include multi-channel signal processing, including continuously receiving multiple channels, wherein each channel comprises a discrete signal, and processing the multipl... | 12/29/2009 |
