Unlock instant, AI-driven research and patent intelligence for your innovation.

Flexible clocking for audio sample rate converter in a usb system

A sampling rate, converter technology, applied in the direction of frequency response correction, generation/distribution of signals, electrical components, etc., can solve problems such as increasing device power consumption, increasing manufacturing cost and complexity, etc.

Active Publication Date: 2015-11-04
MICROCHIP TECH INC
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dedicated PLL used by the sample rate converter again adds significant manufacturing cost and complexity and also increases the power consumption of the device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flexible clocking for audio sample rate converter in a usb system
  • Flexible clocking for audio sample rate converter in a usb system
  • Flexible clocking for audio sample rate converter in a usb system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The invention and its various features and advantageous details will be more fully understood with reference to the exemplary and therefore non-limiting embodiments illustrated in the drawings and described in detail below. Descriptions of well-known programming techniques, computer software, hardware, operating platforms and protocols may be omitted so as not to unnecessarily obscure the invention in detail. It should be understood, however, that the detailed description and specific examples, while indicating preferred embodiments, are given by way of illustration only and not limitation. Various substitutions, modifications, additions and / or rearrangements within the spirit and / or scope of the basic inventive concept will become apparent to those skilled in the art from the present disclosure.

[0030] Furthermore, any example or illustration given herein should in no way be considered to restrict, limit or express a definition of any term or terms utilized therewith...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A processor according to embodiments comprises an on-board sample rate converter for converting a source audio signal that is sampled at a first sampling rate to an output audio signal that is sampled at a second sampling rate. The sample rate converter utilizes a master clock signal in converting the audio signal. The sample rate converter selects the master clock signal from available reference clock signals, such as an on-chip system clock or a bus interface clock, and scales the frequency of the selected clock signal to generate the master clock signal with the frequency of the second sampling rate.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 61 / 784,160, filed March 14, 2013, which is hereby incorporated in its entirety. technical field [0003] This disclosure relates to sample rate conversion, and in particular, to elastic timing for audio sample rate converters. Background technique [0004] The Universal Serial Bus (USB) was developed to provide PC users with a standardized interface for connecting many different types of peripheral devices to their computers. The development of USB was initially driven by the constraints of laptop computers, which offered limited space for peripheral connection ports, but were expected to interface with an ever-expanding set of personal electronic devices. Providing dedicated ports for a wide range of peripheral devices is not feasible for desktop PCs, and especially impossible for laptop PCs. Thus, laptop computers benefit greatly from standardiz...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F1/04G06F1/10H03H17/06
CPCH04R3/04G06F1/04G06F1/10H03H17/0642
Inventor 勇·元勇斯戈尔伊戈尔·沃耶沃达安东·阿尔基蒙克金·奥滕瑟吉·帕夫洛夫
Owner MICROCHIP TECH INC