Back to results
US 6,633,248 B2Granted
Converting digital signals to analog signals
AssigneeIntel Corporation
InventorHongjiang Song
Life of this patent
Estimating the term…
Abstract
A way of converting digital signals to analog signals is provided for wireless communications. An apparatus is provided that comprises a resistive-ladder array to convert a first portion of a digital input signal to a first analog output signal. The apparatus further includes a current-mode array to convert a second portion of the digital input signal to a second analog output signal.
Claims20
A method comprising:
- receiving for a wireless communication, a digital input in which one bit is less significant than the other bit at circuitry including a first and a second circuit portion;
- and
- converting said less significant bit into a first analog signal with the first circuit portion of said circuitry while using the second circuit portion of said circuitry to convert the other bit into a second analog signal.
An apparatus comprising:
- an interface to receive for a wireless communication, a digital input in which one bit is less significant than the other bit;
- and
- circuitry including a first and a second circuit portion operably coupled to said interface to convert said less significant bit into a first analog signal with the first circuit portion of said circuitry while using the second circuit portion of said circuitry to convert the other bit into a second analog signal.
A communication system comprising:
- a handset to communicate over a cellular network;
- a global system of mobile communication transceiver disposed in said handset;
- and
- a digital-to-analog converter communicatively coupled to the global system of mobile communication transceiver, the digital-to-analog converter comprising:
- an interface to receive a digital input in which one bit is less significant than the other bit;
- and
- circuitry including a first and a second circuit portion operably coupled to said interface to convert said less significant bit into a first analog signal with the first circuit portion of said circuitry while using the second circuit portion of said circuitry to convert the other bit into a second analog signal.
4 more elements
A wireless communication device comprising:
- a transceiver to communicate over a wireless network;
- an interface operably coupled to said transceiver to receive a digital input in which one bit is less significant than the other bit;
- and
- circuitry including a first and a second circuit portion operably coupled to said interface to convert said less significant bit into a first analog signal with the first circuit portion of said circuitry while using the second circuit portion of said circuitry to convert the other bit into a second analog signal.
1 more element
Dependencies are inferred from the claim text.