摘要:
In some embodiments, the invention includes a system having a clock recovery circuitry to receive a data signal and a reference clock signal and in response thereto to produce an in phase clock signal which is in phase with the data signal and mirrors frequency changes in the data signal, wherein the data signal has embedded clock information and a varying frequency. The system also includes a receiving gate to receive the data signal and the in phase clock signal and to gate the data signal to produce a gated data signal in response to the in phase clock signal. Other embodiments are described and claimed.
摘要:
A system includes a chassis having at least one wall, the chassis housing electrical components and a layer of flexible foam electromagnetic interference (EMI) emission absorption material covering an interior surface of the wall. A system also includes a chassis containing slots, the chassis housing electrical components and a layer of flexible foam electromagnetic interference (EMI) emission absorption material covering at least one of the slots.
摘要:
An apparatus, system, and method, the method including receiving clock frequency parameter information for at least one clock source; receiving radio parameter information for at least one radio receiver; determining one or more spread spectrum clocking (SSC) profiles for the at least one clock source and the at least one radio receiver, each SSC profile to reduce radio frequency interference between the clock and radio receivers; and storing the SSC profiles.
摘要:
A plug-and-play antenna may be used with many different types of wireless communication devices. An antenna may be coupled to an impedance tuning component and a waveform generator. A calibration control module receives radio status information, controls the waveform generator to vary a response of the antenna, and tunes the impedance tuning component to match impedances between a radio and the antenna.
摘要:
In some embodiments, SSC (e.g., discrete SSC) profiles with intentional and controlled gaps may be used to mitigate interference for platform radios. Targeted frequency gaps are placed in spectrum of spread clocks and clock-derived signals where they may otherwise result in problematic RFI to a platform radio.
摘要:
Provided herein are different embodiments for performing radio frequency interference (RFI) mitigation in electronic devices such as mobile computing systems. In some embodiments, a dynamic RFI mitigation scheme allows for monitoring of wireless channels for RFI and to adaptively shift an identified RFI source (e.g., system clock) harmonics, e.g., either out of the on-channels or to a neutral position within the on-channels such as by using cost-function analysis.
摘要:
An improved voltage regulator is disclosed, which includes a pulse width modulator for generating a switching signal at a modulated frequency. A drive circuit is coupled to the output of the pulse width modulator, and a switching transistor is coupled to the output of the drive circuit and to an input voltage. The switching transistor generates an output voltage.
摘要:
In one embodiment, a system comprises a portable computing device comprises a housing, at least one temperature sensitive radio frequency signal source proximate the housing and at least one radio frequency interface to receive a radio signal generated by the at least one temperature sensitive radio frequency signal source.
摘要:
Described herein are architectures, platforms and methods for implementing modulating a radiating signal of a high Q antenna in order to transmit from one frequency to one or more different frequencies which may be in the same narrow band frequency spectrum or in a wide band frequency spectrum.
摘要:
According to some embodiments, a method and apparatus are provided to vary a clock signal frequency for a first time period between a lower limit of a range of problematic frequencies and a frequency lower than the lower limit, and vary the clock signal frequency for a second period of time between an upper limit of the range of problematic frequencies and a frequency greater than the upper limit.