Abstract: Methods and systems for accurate gain adjustment of a transimpedance amplifier using a dual replica and servo loop is disclosed and may include, in a transimpedance amplifier (TIA) circuit comprising a first TIA, a second TIA, and a third TIA, each comprising a configurable feedback impedance, and a control loop, where the control loop comprises a gain stage with inputs coupled to outputs of the first and second TIAs and an output coupled to the configurable feedback impedance of the second and third TIAs: configuring a gain level of the first TIA by configuring its feedback impedance, configuring a gain level of the third TIA by configuring a reference current applied to an input of the first TIA, and amplifying a received electrical signal to generate an output voltage utilizing the third TIA. The reference current may generate a reference voltage at one of the inputs of the gain stage.

Abstract: Methods and systems for an optical connection service interface may include, in an optical data link comprising an optical fiber, a local control system, first and second transceivers at ends of the optical fiber, generating a control signal for the local control system at frequencies <10 Hz and communicating, utilizing the optical fiber, an optical data signal at frequencies >10 kHz and an optical service signal for an Optical Connection Service interface (OCSi) at intermediate frequencies between 10 Hz and 10 kHz. An optical signal may be modulated at the intermediate frequencies for the OCSi, and may be modulated and communicated to the second transceiver. The communicated modulated signal and the optical data signal may be detected utilizing a photodetector in the second transceiver. The detected optical signal may be demodulated, and an optical power of the optical data signal may be configured based on the demodulated signal.

Abstract: The present invention relates to a method for conserving battery power during shipping for an impact activated device for transmitting a radiofrequency signal. The method comprises forming an impact activated device for transmitting a radiofrequency signal. The shot tracking device is shipped in commerce and received at a retailer. The shot tracking device is stored at the retailer, wherein the battery has at least 90% of its capacity until paired with a receiver.

Abstract: Methods and systems for an optoelectronic built-in self-test (BIST) system for silicon photonics optical transceivers are disclosed and may include, in an optoelectronic transceiver having a transmit (Tx) path and a receive (Rx) path, where the Rx path includes a main Rx path and a BIST loopback path: generating a pseudo-random bit sequence (PRBS) signal, generating an optical signal in the Tx path by applying the PRBS signal to a modulator, communicating the optical signal to the BIST loopback path and converting to an electrical signal utilizing a photodetector, the photodetector being a replica of a photodetector in the main Rx path, and assessing the performance of the Tx and Rx paths by extracting a PRBS signal from the electrical signal. The transceiver may be a single complementary-metal oxide semiconductor (CMOS) die or in two CMOS die, where a first comprises electronic devices and a second comprises optical devices.

Abstract: A method for predicting a golfer's swing speed, wherein the method comprises determining that the golfer is addressing a golf ball to swing a golf club, monitoring a backswing, determining a transition time, monitoring a downswing, determining an impact time, transmitting data for the golfer's swing to a receiver for analysis and generating a golfer's swing speed using a length of a shaft of the golf club.

Abstract: A method for tracking a golfer's round of golf, wherein the method comprises determining a first location of a GPS device, receiving a signal from a first golf club, recording the first location, determining a second location of the GPS, receiving a signal from a second golf club, determining the distance from the first location and the second location and recording the distance as a distance for a first shot of the golfer.

Abstract: A system and method for shot tracking disclosed herein. The system preferably includes a golf club and a receiver. The golf club preferably includes an active RFID transponder, a power source, a switch and an accelerometer.

Abstract: A circuit for transmitting a RFID signal while conserving the battery power for a circuit in continuous operation is disclosed herein. The circuit includes a RFID component, a microprocessor, an accelerometer, a gyroscope and a battery. The battery preferably has no more than 225 milliamp hours of power. The accelerometer is preferably a multiple axis accelerometer. The circuit is preferably utilized with a device for shot tracking.

Abstract: The present invention relates to a method for conserving power for a shot tracking device for attachment to a golf club. The method involves transmitting a plurality of signals from a shot tracking device attached to a golf club. The shot tracking device is enabled to determine that a threshold number of signals has been transmitted by the shot tracking device and a receipt signal has not been received by the shot tracking device, which in turn deactivates the shot tracking device until a predetermined event occurs.

Abstract: A system and method for shot tracking disclosed herein. The system preferably includes a golf club and a receiver. The golf club preferably includes an active RFID transponder, a power source, a switch and an accelerometer.

Abstract: A golf GPS device is disclosed herein. The device includes a GPS unit, a memory for storing data for a plurality of golf courses, a display for displaying animations of portions of golf courses, a user input for inputting a plurality of location points on the display, and a processor comprising means for rendering the animations of portions of golf courses from a plurality of latitude and longitude coordinate points.

Abstract: A device for tracking a golfer's shot during a round of golf wherein the device comprises a housing, a battery having no more than 225 milliamp hours of power, a microprocessor and an accelerometer. The accelerometer is preferably a multiple axis accelerometer. The circuit is preferably utilized with a device for shot tracking.

Abstract: A method for predicting a golfer's swing speed, wherein the method comprises determining that the golfer is addressing a golf ball to swing a golf club, monitoring a backswing, determining a transition time, monitoring a downswing, determining an impact time, transmitting data for the golfer's swing to a receiver for analysis and generating a golfer's swing speed using a length of a shaft of the golf club.

Abstract: The present invention relates to shot tracking. More specifically, the present invention relates to a method and system for tracking shots of a golfer during a round of golf. One aspect of the present invention is a system for automatically tracking a golf club swung by a golfer. The system comprises a plurality of golf clubs. Each of the plurality of golf clubs comprises a device attached to a grip which is attached to a shaft which is attached to a golf club head. The device comprises a power source, a shock switch and a RFID component.

Abstract: A method for predicting a golfer's swing speed, wherein the method comprises determining that the golfer is addressing a golf ball to swing a golf club, monitoring a backswing, determining a transition time, monitoring a downswing, determining an impact time, transmitting data for the golfer's swing to a receiver for analysis and generating a golfer's swing speed using a length of a shaft of the golf club.

Abstract: A golf GPS device is disclosed herein. The device includes a GPS unit, a memory for storing a plurality of aerial images of a golf course, a display for displaying the plurality of aerial images, a user input for inputting a plurality of location points on an aerial image of the plurality of aerial images displayed on the display, and a processor comprising means for determining a distance between any two points on a golf course.

Abstract: A portable golf GPS device comprising a microprocessor operably coupled to a GPS unit, an input device such as a keypad (or touch screen) operably coupled to the microprocessor, a voice recognition unit operably coupled to the microprocessor, and a display such as a liquid crystal display (“LCD”) operably coupled to the microprocessor. A program memory system which contains at least some of the software and data to operate the device is also operably coupled to the microprocessor. The portable golf GPS device is preferably contained in a housing such that the entire device has a very compact and lightweight form factor, and is preferably handheld and/or pocket size. The golf GPS device is configured to display distances to course features, and to receive and process voice input in order to select functions or input data into the golf GPS device.

Abstract: A system and method for shot tracking disclosed herein. The system preferably includes a golf club and a receiver. The golf club preferably includes an active RFID transponder, a power source, a switch and an accelerometer.

Abstract: A portable golf GPS device comprising a microprocessor operably coupled to a GPS unit, an input device such as a keypad (or touch screen) operably coupled to the microprocessor, a voice recognition unit operably coupled to the microprocessor, and a display such as a liquid crystal display (“LCD”) operably coupled to the microprocessor. A program memory system which contains at least some of the software and data to operate the device is also operably coupled to the microprocessor. The portable golf GPS device is preferably contained in a housing such that the entire device has a very compact and lightweight form factor, and is preferably handheld and/or pocket size. The golf GPS device is configured to display distances to course features, and to receive and process voice input in order to select functions or input data into the golf GPS device.

Abstract: The present invention is a method for transmitting a RFID signal while conserving battery power of a circuit. The method comprises charging a capacitor using a battery. The battery is in electrical communication with a resistor and the resistor is in electrical communication with a capacitor and a load switch. The load switch is in electrical communication with an enabler and a microprocessor. The microprocessor is in electrical communication with a radiofrequency component. The load switch is closed, allowing power drawn from the capacitor to flow to the radiofrequency component.