scispace - formally typeset
Patent

Programmable oscillator circuit

Reads0
Chats0
TLDR
In this paper, a programmable crystal oscillator is provided having a memory for storing frequency-defining parameters, which can be used to program an adjustable capacitive load circuit coupled to a crystal to adjust the crystal source frequency.
Abstract
A programmable crystal oscillator is provided having a memory for storing frequency-defining parameters. Typically, one of these parameters is used to program an adjustable capacitive load circuit coupled to a crystal to thereby adjust the crystal source frequency. Additional parameters are used to program the output frequency of a phase locked loop circuit coupled to receive the adjusted source frequency. A further parameter can also be used to divide the output frequency of the phase locked loop circuit to supply a specified output frequency. The oscillators can be manufactured as generic programmable crystal oscillators without regard for output frequency and then quickly programmed to produce customer-specified output frequencies with a high degree of accuracy.

read more

Citations
More filters
Patent

Haptens, hapten conjugates, compositions thereof and method for their preparation and use

TL;DR: In this paper, a method for performing a multiplexed diagnostic assay, such as for two or more different targets in a sample, is described, which consists of contacting the sample with two specific binding moieties that bind specifically to two or different different targets, and at least one of the haptens is an oxazole, pyrazole, thiazole, a nitroaryl compound other than dinitrophenyl.
Patent

Polymeric carriers for immunohistochemistry and in situ hybridization

TL;DR: In this article, the synthesis, derivatization, conjugation to immunoglobulins and signal amplification based on discrete, relatively short polymers having plural reactive functional groups that react with plural molecules of interest are discussed.
Patent

Fast startup resonant element oscillator

TL;DR: In this article, a startup circuit for a tunable oscillator based oscillator is described, where the frequency of the tunable frequency is adjusted such that the frequency is substantially equal to the resonant frequency of a resonator-based oscillator.
Patent

Voltage regulator which outputs a predetermined direct-current voltage with its extreme variation restrained

TL;DR: In this article, a voltage regulator has a reference voltage generator, an output circuit which generates a predetermined direct current voltage based on the reference voltage and a comparison voltage lower than the predetermined direct-current voltage, and a differential amplifier coupled between the generator and the output circuit.
Patent

Nonvolatile programmable crystal oscillator circuit

TL;DR: In this article, a flash memory is used to configure a single die after packaging of the die has occurred, and the nonvolatile memory can be accessed through a programming interface, and preferably, through a two-pin programming interface.
References
More filters
Patent

Method and system for selectively targeting advertisements and programming

TL;DR: In this article, a method and system for selectively targeting advertisements and programming to different demographically and specially targeted television audiences by relating carrier subscriber data to other proprietary marketing databases by creating, compiling and updating a National Directory of cable and other carrier system subscriber names and address information derived from actual cable system and telephone company billing records is presented.
Patent

Automatic information, goods and services dispensing system

TL;DR: In this paper, a system for automatically dispensing information, goods and services to a customer on a self-service basis including a central data processing center in which information on services offered by various institutions in a particular industry is stored.
Patent

Order entry system having catalog assistance

TL;DR: In this paper, a system for enabling a customer to operate a data terminal for placing an order for goods or services from a supplier, the data terminal displays information about the goods and services being ordered to complete, correct or update information available from the supplier's catalog.
Patent

A frequency synthesiser

TL;DR: In this paper, a frequency synthesiser comprising a phase-locked loop having a reference oscillator coupled to a first input of a comparator, a voltage controlled oscillator (VCO) for providing an output signal, which output signal is fed back by way of a divider circuit, or dividing the output fequency by a factor N to a second input of said comparator.
Patent

Compiling system and method of producing individually customized recording media

TL;DR: In this paper, the compiling system and method of the present invention enables the recording of individually customized information onto blank storage media devices, and includes a data base memory device for storing information signals indicative of customized recipient information pertaining to a group of recipients.