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Apparatus and method for generating fine timing from coarse timing source

A generator and a second generator technology, applied in the direction of pulse position modulation, pulse technology, pulse processing, etc., can solve data loss, reduce session period and downtime, etc.

Inactive Publication Date: 2010-03-10
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases this can lead to adverse results such as data loss, communication delays, reduced session duration and downtime

Method used

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  • Apparatus and method for generating fine timing from coarse timing source
  • Apparatus and method for generating fine timing from coarse timing source
  • Apparatus and method for generating fine timing from coarse timing source

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Embodiment Construction

[0025] Each aspect of this disclosure is described below. Obviously, the technology herein may be embodied in various forms, and any specific structure, function, or structure and function disclosed herein is merely representative. Based on the teachings herein one skilled in the art should appreciate that a particular aspect disclosed herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented or a method performed in any number of ways set forth herein. In addition, other structure, function, or structure and function may be used in addition to, or instead of, one or more of the aspects set forth herein to implement the apparatus or to perform the method.

[0026] As an example of some of the above concepts, in some aspects the means for generating a pulse includes: a generator for generating a bias voltage as a function of an input; a generator for generatin...

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PUM

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Abstract

An apparatus for generating a pulse at a particular time dictated by an input. The apparatus may comprise an offset voltage generator for generating an offset voltage that is a function of the input,a current generator for generating a current, a ramp voltage generator for generating a ramp voltage having an initial value as a function of the offset voltage and a slope as a function of the current, and a pulse generator for generating a pulse in response to the ramp voltage reaching a threshold voltage. With this configuration, the time the pulse is generated is controlled by the input. Thismay be used in transceivers to control the time of transmission and the time of reception. Such times may be used to set up communication channels, such as ultra-wide band (UWB) channels, for communicating with other devices.

Description

technical field [0001] The present application generally relates to apparatus and methods for generating precise timing (eg, pulses) from a coarse timing source, such as a periodic clock. Background technique [0002] Previous communication systems used techniques that were often power inefficient. These systems typically use transmitters and receivers that require continuous power even when communications are not being sent or received. Such systems that are idle while still consuming power are generally inefficient from a power standpoint. [0003] In some applications, such power-inefficient communication systems may present limitations in their extended use. For example, a portable communication device that relies on battery power typically has a relatively short lifespan of continuous operation before its battery needs to be replaced or recharged. In some cases, this can lead to adverse consequences such as data loss, communication delays, reduced session duration, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K7/04H03K5/00
CPCH03K7/04H03K2005/00156H03K5/13
Inventor R·J·法格
Owner QUALCOMM INC