VOICE-RECORDING APPARATUS AND VOICE-BAND AUDIO CODEC
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
May 24, 2007
app pub date -
Jan 16, 2006
filing date -
Nov 7, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A voice-recording apparatus and a voice-band audio CODEC apparatus derived therefrom are disclosed. The voice-recording apparatus includes a multiplexer, a successive approximation analog-to-digital converter (SAR-ADC); and a pulse code modulation code digital circuit (PCM code digital circuit). The multiplexer alternately outputs a left channel input signal and a right channel input signal in response to a first clock signal. The SAR-ADC is coupled to the multiplexer, takes a second clock signal as the operating frequency thereof and converts the left channel input signal and the right channel input signal from analog signal format into digital signal format. The PCM code digital circuit converts the output signal of the SAR-ADC from serial digital code into parallel digital code.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully