[특허]Method for detecting short burst errors in LDPC system

[미국특허] Method for detecting short burst errors in LDPC system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H03M-013/00
출원번호	US-0287959 (2008-10-15)
등록번호	US-8201051 (2012-06-12)
발명자 / 주소	Tan, Weijun Yang, Shaohua Song, Hongwei
출원인 / 주소	LSI Corporation
대리인 / 주소	Suiter Swantz pc llo
인용정보	피인용 횟수 : 88 인용 특허 : 7

초록 ▼

The present invention is a device for detecting short burst errors. The device includes a first signal input, wherein the first signal input is configured to receive a first signal. The device includes a second signal input, wherein the second signal input is configured to receive a second signal. The device includes a logic gate, wherein the logic gate is operable for receiving the first signal vial the first signal input, receiving the second signal via the second signal input, and generating a logic output gate signal based on the received first signal and the second signal. Furthermore, the device includes a filter, wherein the filter is configured for receiving the logic output gate signal from the logic gate and generates a filter output signal based upon the received logic output gate signal, wherein the filter output signal is operable for flagging errors.

대표청구항 ▼

1. A short burst error detector device, the device comprising: a first signal input, wherein the first signal input is configured to receive a first signal;a second signal input, wherein the second signal input is configured to receive a second signal, the second signal subject to a delay before being received by the second signal input;a logic gate, wherein the logic gate is configured to receive the first signal via the first signal input and the second signal via the second signal input, the logic gate configured to generate a logic output gate signal based on the received first signal and the second signal;a filter, wherein the filter is configured to receive the logic output gate signal from the logic gate and generate a filter output signal based upon the logic output gate signal, wherein the filter output signal is configured to flag errors;wherein the first signal is a soft output (Le), the soft output (Le) is provided to the logic gate via a low-density parity-checking (LDPC) code decoder; andan interleaver configured for receiving a sign disagreement of the soft output (Le) and a soft input (La) ((sign(La)¢sign(Le)), wherein the interleaver is present on the soft output (Le). 2. The device of claim 1, wherein the first signal is a soft output (Le), the soft output (Le) is provided to the logic gate via a channel detector. 3. The device of claim 1, wherein the second signal is a soft input (La), and wherein the soft input (La) is provided to the logic gate via an input data buffer. 4. The device of claim 1, wherein the logic gate is an exclusive OR equivalent (XOR) gate configured to check a sign disagreement of a soft output (Le) and a soft input (La) and generate a output signal disagreement sign(La)≠sign(Le). 5. The device of claim 1, wherein the filter is a moving average filter configured to receive a generated disagreement sign(La)≠sign(Le) and create a moving average. 6. The device of claim 1, wherein the filter is a moving average filter configured to receive a sum generated disagreement sign(La)≠sign(Le) and create a moving average. 7. The device of claim 1, wherein the device is configured to set a burst threshold, flag an erasure in a moving average window, and extend a first edge and a second edge of the erasure to a dynamic number of bits left and right of an exceeded burst threshold where the number is limited by a maximum number of bits.

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[미국특허] Method for detecting short burst errors in LDPC system 원문보기

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[미국특허] Method for detecting short burst errors in LDPC system 원문보기

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