Method and apparatus for a X-DSL communication processor
US6940807B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2000 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Mar 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/265
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The current invention provides a DSP which accommodates multiple current X-DSL protocols and is further configurable to support future protocols. The DSP is implemented with shared and dedicated hardware components on both the transmit and receive paths. The DSP implements both the discrete Fourier transform (DFT) and inverse discrete Fourier transform (IDFT) portions across a wide range of sample sizes and X-DSL protocols. Multiple channels, each with varying ones of the X-DSL protocols can be handled in the same session. The DSP offers the speed associated with hardware implementation of the transforms and the flexibility of a software only implementation. Traffic flow is regulated in the chip using a packet based schema in which each packet is associated with a specific channel of upstream and downstream data. Header and control information in each packet is used to govern the processing of each packet as it moves along either the transmit path or receive path. The DSP of the current invention may advantageously be utilized in fields other than communications, such as: medical and other imaging, seismic analysis, radar and other military applications, pattern recognition, signal…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.