Digital signal-rate converter and systems incorporating same

Details Digital signal-rate converter and systems incorporating same Digital signal-rate converter and systems incorporating same

2006-01-17

2006-01-17

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S144000

Reexamination Certificate

active

06987473

ABSTRACT:
A digital signal-rate converting system. The system includes a first mechanism for receiving a digital input signal characterized by a first rate. A second mechanism interleaves the digital input signal in accordance with a predetermined pattern to yield an adjusted-rate digital signal. The adjusted-rate digital signal is representative of the digital input signal, such as a bandpass signal. In a more specific embodiment, the digital signal-rate converting system is an input interface of a rate-converting Digital-to-Analog Converter (DAC). The rate-converting DAC includes a DAC module, such as multi-bit or a 1-bit DAC module, for receiving the adjusted-rate digital signal and providing an analog output signal with a desired bandwidth or center frequency in response thereto. In the specific embodiment, the adjusted-rate digital signal approximates the digital input signal and is characterized by a rate based on a desired center frequency of the analog output signal. In this embodiment, the DAC module includes a high-speed DAC characterized by a DAC hold rate that matches the rate of the adjusted-rate digital signal.

REFERENCES:
patent: 5594443 (1997-01-01), Lam
patent: 5930299 (1999-07-01), Vannatta et al.
patent: 6771910 (2004-08-01), Napier et al.
A. Hussein and W. Kuhn, “Bandpass Sigma/Delta Employing Undersampling of RF Signals for Wireless Communications,” IEEE Transactions on Circuits and Systems II, vol. 47, No. 7, Jul. 2000, pp. 614-620.

Affiliated with

Also associated with

Rating

Digital signal-rate converter and systems incorporating same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital signal-rate converter and systems incorporating same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital signal-rate converter and systems incorporating same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3601936