Patent
Fm rf signal generator using step recovery diode
Reads0
Chats0
TLDR
In this paper, a step recovery diode pulse generator is driven by a fixed frequency oscitor to provide pulses which are modulated in a balanced modulator by means of a voltage controlled oscillator controlled by a variable frequency input.Abstract:
A step recovery diode pulse generator is driven by a fixed frequency oscitor to provide pulses which are modulated in a balanced modulator by means of a voltage controlled oscillator controlled by a variable frequency input. The output of the balanced modulator is attenuated and provides a frequency modulated RF signal output.read more
Citations
More filters
Patent
Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
David F. Sorrells,Michael J. Bultman,Robert W. Cook,Richard C. Looke,Charley D. Moses,Gregory S. Rawlins,Michael W. Rawlins +6 more
TL;DR: Frequency translation and applications of same are described in this paper, including wireless local area network (WLAN) applications such as IEEE Standard 802.11 WLANs, such as, but are not limited to, frequency down-conversion, frequency up-concversion, enhanced signal reception, unified downconversion and filtering, and combinations of same.
Patent
Method and system for down-converting an electromagnetic signal
David F. Sorrells,Michael J. Bultman,Robert W. Cook,Richard C. Looke,Charley D. Moses,Gregory S. Rawlins,Michael W. Rawlins +6 more
TL;DR: In this paper, the authors proposed a method for down converting a modulated carrier signal to a demodulated baseband signal, which requires that at least some of the energy stored in the first storage device is discharged when the first switch is off.
Patent
Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
David F. Sorrells,Michael J. Bultman,Robert W. Cook,Richard C. Looke,Charley D. Moses,Gregory S. Rawlins,Michael W. Rawlins +6 more
TL;DR: In this paper, the authors described a system for down-converting and up-concussing an EM signal by recursively operating on approximate half cycles (½, 1½, 2½, etc.) of the carrier signal.
Patent
Method and system for ensuring reception of a communications signal
TL;DR: In this article, a modulating baseband signal with desired information is accepted, and a plurality of redundant spectrums is generated, each redundant spectrum comprises the necessary amplitude, phase, and frequency information to substantially reconstruct the modulating BS signal.
Patent
Method and apparatus for reducing DC offsets in a communication system
TL;DR: In this paper, a feedback loop circuit reduces DC offset in a wireless local area network (WLAN) receiver channel and a circuit provides gain control in a WLAN receiver channel.
References
More filters
Patent
Multiple carrier phase modulated signal generating apparatus
TL;DR: In this article, a triggered free-running multivibrator is synchronized to operate at a frequency equal to the spacing between adjacent channels of the FM receiver and an audio oscillator.
Patent
Linear double balanced diode mixer
TL;DR: In this article, an improved double balanced diode mixer for high frequency operation is described, which contains two series connected pairs of high frequency diodes operated in a modified bridge configuration.
Patent
Multiple carrier frequency modulated signal generating apparatus
TL;DR: In this article, a triggered free-running multivibrator is synchronized to operate at a frequency equal to the spacing between adjacent channels of the FM receiver using a step recovery diode.