Back to results
US 8,576,969 B1Granted
Method and apparatus for detecting sync mark
AssigneeMarvell International Ltd.
InventorsJin Xie, Mats Oberg
Life of this patent
Estimating the term…
Abstract
Aspects of the disclosure provide a method for detecting marks. The method includes receiving a data signal from a channel. Further, the method includes matching the data signal to a template that corresponds to a predetermined pattern transmitted over the channel to detect marks, prior to decoding the data signal into a decoded bit stream.
Claims17
A method for detecting marks, comprising:
- receiving a data signal from a channel;
- convolving a predetermined pattern with a partial response target that characterizes the channel to calculate a template;
- and
- matching the data signal to the template that corresponds to the predetermined pattern transmitted over the channel to detect marks, prior to decoding the data signal into a decoded bit stream.
1 more element
A signal processing circuit, comprising:
- a pre-decoding portion configured to receive a signal corresponding to a bit stream that includes marks having a predetermined pattern, process the signal, and output a data signal for decoding;
- a decoder configured to decode the data signal into a decoded bit stream;
- a template module configured to convolve a sync mark pattern with a partial response target that characterizes a channel over which the data signal is transmitted to calculate a sync mark template;
- and
- a mark detection module configured to match the data signal to the sync mark template that corresponds to the predetermined pattern to detect the marks.
2 more elements
An electronic system, comprising:
- a pick-up unit configured to generate a signal corresponding to a bit stream, the bit stream including marks having a predetermined pattern;
- a pre-decoding portion configured to process the signal, and output a data signal for decoding;
- a decoder configured to decode the data signal into a decoded bit stream;
- a template module configured to convolve a sync mark pattern with a partial response target that characterizes a transmission channel over which the data signal is transmitted to calculate a sync mark template;
- and
- a mark detection module configured to match the data signal to the sync mark template that corresponds to the predetermined pattern to detect the marks.
3 more elements
Dependencies are inferred from the claim text.