60 results about "Single oscillator" patented technology

The present disclosure relates to systems, devices and methods related to transmitters, and / or transceivers having a single, tunable oscillator in a dual conversion architecture. In various exemplary embodiments, this transmitter may include: a first mixer configured to receive a first oscillator signal from the single oscillator; a filter configured to band pass filter the converted signal and output a filtered signal; and a second mixer in communication with the filter, configured to receive the filtered signal. This dual conversion transmitter may be configured to receive a communication signal from an input to the transmitter and to output a converted signal based on the first oscillator signal and the communication signal. The second mixer may be configured to receive a scaled version of the first oscillator signal and to output a desired frequency output signal based on the scaled version of the first oscillator signal and the filtered signal.

A single oscillator synchronizer system and method that automatically switches from a wireless receive mode of the oscillator to a wireless transmit mode of the oscillator upon the detection of a synchronization (synch) signal of a camera body. In one example, a method of wirelessly communicating a camera synchronization from a camera body to a remote device with a wireless camera flash synchronizer connected to a synchronization connector of the camera body, the wireless camera flash synchronizer including a transceiver having an oscillator element with a wireless receive mode and a wireless transmit mode, the oscillator element configured to be in only one of the wireless receive mode and wireless transmit mode at a time is provided. In another example, a wireless camera flash synchronizer that automatically switches from a wireless receive mode to a wireless transmit mode upon detection of a synch signal of a camera body is provided.

The invention relates to a hearing aid comprising a radio frequency receiver, where the receiver comprises a single oscillator providing a single crystal oscillator frequency and where means are provided for generating a further number of receiving frequencies by transforming the oscillator frequency to the desired receiving frequencies, where further scanning means are provided for upon activation provide a scanning of the possible frequency area and select a detected frequency superceding a predetermined detector level.

A converter (311) converts an AC voltage value (e) to the DC electric power of a DC voltage value corresponding to a set input. An inverter (312) is controlled by a frequency electric power control circuit part (330) to convert the DC electric power to a dual frequency AC electric power for alternately outputting low and high frequencies at a frequency ratio (duty) corresponding to the set input. A matching transformer (321) having a tap (321C) at which the resonance impedance corresponds to the output impedance of an oscillator circuit part (310) receives the dual frequency AC electric power. A low frequency series resonance circuit (325) or a high frequency series resonance circuit (326) is caused to provide a series resonance, thereby causing an induction heating coil (200) to induction heat an object (201) to be heated. In this way, the single oscillator circuit part (310) and the single induction heating coil (200) are used to effectively induction heat the object (201) by means of the dual frequency resonance.

The method is for using a multi-tune transceiver. A single oscillator (VCO / DCO) is provided that is electronically connected to a divider (112). An input channel (102) is provided that is in communication with the divider and an analog-to-digital converter (116). The input channel has a first bandwidth and the converter has a second bandwidth that is broader than the first bandwidth. The single oscillator (VCO / DCO) operates at a frequency higher than frequencies inside the reception band such as the FM band. The divider divides the frequency of the single oscillator that is used as input when producing overlapping sub-bands that cover the entire reception band.

The linear friction welding (LFW) apparatus of this invention, in various embodiments includes a vibrating assembly or assemblies, which simultaneously vibrates both work pieces along the weld axis during the weld process. In one embodiment, separate vibrating assemblies are used to vibrate each work piece along the weld axis relative to each other. Each vibrating assembly has its own oscillator mechanism with motors and cams that can be moved into and out of phase with that of the other vibrating mechanism to generate the relative movement between the work pieces. In another embodiment, the apparatus includes a vibrating assembly that uses a single oscillator and two sets of rocker arms supporting carriages operatively connected by a linkage mechanism to simultaneously vibrate both work pieces along the weld axis.

A novel and useful system and method for eliminating settling time delays in a radar system. In one embodiment, a plurality of oscillators is provided with a single transmitter. In an alternative embodiment, a plurality of transmitters is provided, each with its own oscillator. In either case, more than a single oscillator is used, whereby startup or turn on transients associated with one oscillator are allowed to settle out while another oscillator is being used. The two or more oscillators switch off and / or alternate or rotate such that oscillator settling time between chirp transmissions from the radar is substantially or completely eliminated. In a radar system having two transmitters, when the chirp propagation time window for the first transmitter is complete, the first transmitter is disconnected from the receive channel and the second transmitter is connected to the antenna and receive channel without having to wait for the second transmitter to settle since it was allowed to settle beforehand.

The present invention provides a novel feed forward amplifier (“FFA”) and a pilot tone generator-receiver therefor. In an embodiment of the invention, the feed forward amplifier only requires a single oscillator to operate both the pilot tone generator and pilot tone receiver used in conjunction with the amplifier circuitry of the FFA. In another embodiment of the invention, a method is provided of generating and detecting a pilot tone from a single oscillating signal.

The invention relates to a high-power signal source based on a phase lock and phase injection synchronization and power synthesis technology. The high-power signal source comprises a phase-locked loop, an injection locked oscillator array and a power synthesizing unit. A stable initial signal is generated through the phase-locked loop, the relationship between an output signal phase and an injection signal phase in the injection locked voltage-controlled oscillator array is used for realizing the synchronization for output signal phases in the injection locked oscillator array through using the initial signal of the phase-locked loop as the injection signal, and finally, the power synthesizing unit realizes the power synthesis for the phase synchronization signals to realize the high-power signal source output. According to the signal source based on the phase lock and phase injection synchronization and power synthesis technology, the output power of the signal source is not limited by the output power of a single oscillator and is closely related to the number of the injection locked oscillators; the signal source based on the phase lock and phase injection synchronization and power synthesis technology enables the signal source output power to be greatly improved and lays a solid foundation for the solid-state Terahertz source practicability, Terahertz wave research and popularization.

A transmitter and / or receiver includes a single crystal clock oscillator circuit and a sample rate converter (SRC) that selectively generates samples at an alternative frequency for subsequent transmission or decoding. A 40 MHz crystal provides the clock signal for the digital-to-analog and analog-to-digital converters that are used to convert the samples to and from analog form. In an IEEE 802.11-compatible embodiment, the 802.11a compatible 20 MHz OFDM samples are converted to and from analog form directly, whereas a sample rate converter converts the 802.11b compatible 22 MHz DSSS samples to and from 40 MHz samples to provide compatibility with the 40 MHz analog conversions.

The method is for using a multi-tune transceiver. A single oscillator (VCO / DCO) is provided that is electronically connected to a divider. An input channel is provided that is in communication with the divider and an analog-to-digital converter. The input channel has a first bandwidth and the converter has a second bandwidth that is broader than the first bandwidth. The single oscillator (VCO / DCO) operates at a frequency higher than frequencies inside the reception band such as the FM band. The divider divides the frequency of the single oscillator that is used as input when producing overlapping sub-bands that cover the entire reception band.

A hearing aid includes a signal path having an input transducer, a processor and an output transducer, the hearing aid further including a radio frequency receiver, where the receiver includes a single crystal oscillator providing a single oscillator frequency and where means are provided for generating a further number of receiving frequencies by transforming the oscillator frequency to the desired receiving frequencies. The hearing aid and the RF receiver may be separate or integrated. The invention further relates to a separate element comprising a RF receiver, the separate element being adapted for mounting on a hearing aid.

The invention belongs to the technical field of dual-frequency continuous wave radar positioning, and relates to an asynchronous positioning method based on single station dual frequency continuous wave radar. The method no longer transmits two continuous wave signals of different frequencies at the same time, but switches between three states to transmit two continuous wave singles of different frequencies, and the third state compensates for the phase disturbance caused by the target speed. Compared to the synchronous mode, this method has lower complexity and cost, and is suitable for mostcommercial products of short-range radars with a single oscillator structure. The simulation results show that the positioning accuracy of the method can reach the centimeter level.

A meter is disclosed for measuring the dielectric constant of a particulate material, particularly grain, as a function of its moisture content. The meter includes a test cell for containing a sample of the particulate material to be tested. A single oscillator includes a variable frequency tuned circuit for varying the frequency of the single oscillator output. The tuned circuit includes a test cell capacitor using a sample of material to be tested as a dielectric, a calibrated variable standard capacitor and a variable trimming capacitor. An indicator is coupled to the calibrated variable standard capacitor to display a value representing the capacitance setting of the calibrated variable standard capacitor. A frequency monitor compares the output frequency of the oscillator with a selected frequency and a null display displays the difference between the output frequency of the oscillator and the selected frequency. In the invention, the frequency monitor generates DC outputs of opposite polarity according to whether the output frequency of the oscillator is greater than or less than the selected frequency and the null display is a digital display, displaying the frequency difference as zero when the output frequency of the oscillator equals the selected frequency, as a positive value when the output frequency of the oscillator is greater than the predetermined frequency and as a negative value when the output frequency of the oscillator is less than the predetermined frequency.

The invention discloses a vortex-induced vibration testing system suitable for multi-oscillator coupled vibration research, and relates to the field of fluid mechanics and experimental facilities. The vortex-induced vibration testing system is formed by three parts of a fixed supporting module, a slidable supporting module and a sliding system; the slidable support module can freely slide on the fixed supporting module, and meanwhile the sliding system can do vertical linear reciprocating motion on the slidable supporting module through a tension spring. The vortex-induced vibration testing system is not only suitable for a single-oscillator vortex-induced vibration test, but also suitable for a two / more-oscillator vortex-induced vibration test under the condition of various arrays. Meanwhile, the system can achieve various configuration forms such as series connection, parallel connection, inclined configuration and series-parallel coupling configuration among multiple oscillators, expands the research range of vortex-induced vibration, and supplies good testing conditions to multi-oscillator coupled wake galloping research.

Provided are a multi-output oscillator using a single oscillator, and a method of generating multiple outputs. The multi-output oscillator includes: an oscillator outputting the single frequency; a multiplier multiplying the single frequency to output a first frequency; a first frequency divider dividing the single frequency by a first division factor; a first mixer outputting a second frequency by mixing an output of the first frequency divider and an output of the multiplier; a second frequency divider dividing the single frequency by a second division factor; a second mixer mixing the output of the second frequency divider and the output of the first mixer to output a third frequency; and a third mixer mixing the output of the second frequency divider and the output of the multiplier to output a fourth frequency.

A converter (311) converts an AC voltage value (e) to the DC electric power of a DC voltage value corresponding to a set input. An inverter (312) is controlled by a frequency electric power control circuit part (330) to convert the DC electric power to a dual frequency AC electric power for alternately outputting low and high frequencies at a frequency ratio (duty) corresponding to the set input. A matching transformer (321) having a tap (321C) at which the resonance impedance corresponds to the output impedance of an oscillator circuit part (310) receives the dual frequency AC electric power. A low frequency series resonance circuit (325) or a high frequency series resonance circuit (326) is caused to provide a series resonance, thereby causing an induction heating coil (200) to induction heat an object (201) to be heated. In this way, the single oscillator circuit part (310) and the single induction heating coil (200) are used to effectively induction heat the object (201) by means of the dual frequency resonance.

The linear friction welding (LFW) apparatus of this invention, in various embodiments includes a vibrating assembly or assemblies, which simultaneously vibrates both work pieces along the weld axis during the weld process. In one embodiment, separate vibrating assemblies are used to vibrate each work piece along the weld axis relative to each other. Each vibrating assembly has its own oscillator mechanism with motors and cams that can be moved into and out of phase with that of the other vibrating mechanism to generate the relative movement between the work pieces. In another embodiment, the apparatus includes a vibrating assembly that uses a single oscillator and two sets of rocker arms supporting carriages operatively connected by a linkage mechanism to simultaneously vibrate both work pieces along the weld axis.

A hearing aid including a radio frequency receiver, where the receiver includes a single oscillator providing a single crystal oscillator frequency and where means are provided for generating a further number of receiving frequencies by transforming the oscillator frequency to the desired receiving frequencies, where further scanning means are provided for upon activation provide a scanning of the possible frequency area and select a detected frequency superceding a predetermined detector level.

A frequency plan is provided for particular use in a transceiver. Advantageously, a single oscillator may be used to generate desired frequency signals. One or more power splitters receive the signal and equally divide the signal into first and second signals having a frequency substantially equal to the original. Multipliers on each arm of the transceiver receive a signal and increase the frequency of the signal. In one exemplary embodiment, multiple signals having different frequencies may be transmitted over the same cable due in part to the generated frequency separation between the signals. In another exemplary embodiment, multiple signals may be transmitted over multiple cables. In another exemplary embodiment, the frequency plan may self correct a transmit signal based on a reference signal, such as the receive signal. Additionally, multiple signals over one or more cables may be transmitted at or below 3 GHz.

A pulsed radar level gauge for determining the filling level of a product contained in a tank, comprising a frequency generator for generating a Tx frequency signal and a Rx frequency signal. The frequency generator includes one single oscillating crystal for providing an oscillator frequency fosc and frequency modifying circuitry. The frequency modifying circuitry comprises a path including a PLL configured to receive said oscillator frequency fosc as input frequency and deliver a regulated output frequency being equal to the oscillator frequency fosc multiplied M / N, and a frequency divider connected to receive the regulated output frequency and deliver an output frequency equal to the regulated output frequency divided by an integer factor P.A PLL combined with an integer frequency divider is used to generate at least one of the Tx and Rx frequencies based on an oscillator frequency provided by one single oscillator.

A design structure for a computer-aided design system for generating a functional design model of an integrated circuit design (having nets comprising wires) determines critical parameters for coupling noise between the wires of the nets and acceptable limits for the critical parameters. Further, methods herein include designing a ring oscillator to have stages, each of the stages measuring only one of the critical parameters. This ring oscillator is then included within an integrated circuit design and associated design structure. The embodiments herein produce an integrated circuit according to this integrated circuit design and operate the ring oscillator within the integrated circuit to measure the critical parameters of the integrated circuit and produce test results. These test results are output to determine whether the test results are within the acceptable limits.

A grain moisture meter has a test cell for containing a sample of the particulate material to be tested. A single oscillator includes a variable frequency tuned circuit including the test cell as a capacitor, a calibrated variable standard capacitor, a calibrating capacitor and a variable trimming capacitor. A frequency monitor generates DC voltage outputs of opposite polarity according to whether the output frequency of the oscillator is greater than or less than the selected frequency and displays the frequency difference as zero when the circuit is tuned. The calibrating capacitor is operator adjustable and a fixed reference capacitor and a reference number are provided to allow the operator to set the calibrating capacitor.

A novel and useful mm-wave frequency generation system is disclosed that takes advantage of injection locking techniques to generate an output oscillator signal with improved phase noise (PN) performance and power efficiency. Low frequency and high frequency DCOs as well as a pulse generator make up the oscillator system. A fundamental low frequency (e.g., 30 GHz) signal and its sufficiently strong higher (e.g., fifth) harmonic (e.g., 150 GHz) are generated simultaneously in a single oscillator system. The second high frequency DCO having normally poor phase noise is injected locked to the first low frequency DCO having good phase noise. Due to injection locking, the high frequency output signal generated by the second DCO exhibits good phase noise since the phase noise of the second DCO tracks that of the first DCO.

In a receiver of a transmission system in which the data transmission rate is not an integer multiple of the spacing between transmission channels, a single oscillator is used to generate both the system clock used to process the data signal as well as the mixing signal used to downconvert the received RF signal to an intermediate frequency (IF). The frequency error in the IF signal that results from mixing the RF signal at a less-than-ideal mixing frequency is compensated by selecting an appropriate mixing signal frequency applied when downconverting the IF signal to baseband. In a transmitter, the mixing signal frequency used to upconvert the outgoing baseband signal to IF is selected to pre-compensate for the frequency error resulting from upconverting the IF signal to RF using a less-than-ideal mixing frequency. In either case, the receiver / transmitter can be implemented without having to provide a dedicated reference oscillator for converting signals between RF and IF.

A multiple frequency wireless receiver for connecting computer peripheral devices with a host computer via an interface, includes a single oscillator for generating an oscillator signal; a mixer coupled to the receiving unit for mixing at least two signals having different frequencies with the oscillator signal in order to obtain at least two different mixed signals, at least two filters tuned to different frequencies for respectively passing a respective one of the two different mixed signals to a mixed-signal processing unit for demodulation and transformation into commands to be sent to the host computer via the interface.

The invention discloses a half duplex FDD WTRU with single oscillator. Half duplex (HD) frequency division duplexing (FDD) in a wireless transmit-receive unit (WTRU) using a single oscillator (SO) for uplink (UL) and downlink (DL), which may contribute to reduced costs of implementation. Approaches to the resolution of scheduling issues which may result from increased switching time versus implementations using separate oscillators are discussed, including indication of SO-HD-FDD capability, scheduling for collision avoidance, enhanced node-b (eNB) receiver implementations, link adaptation for missed detected physical downlink control and shared channels, collision handling, DL measurement, and burst based transmissions.