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US 2012/0269254 A1Published application
Channel architecture with multiple signal processing branches for a given physical channel
AssigneeSeagate Technology LLC
InventorMehmet Fatih Erden
Life of this patent
Estimating the term…
Abstract
A communication system includes a physical communication channel. A signal is transmitted across the communication channel from a transmit end of the channel to a receive end of the channel. A plurality of processing branches process the signal at the receive end of the communication channel. This reduces complexity of the receive channel, without reducing a bandwidth of the given communication channel, and without comprising performance.
Claims20
A method of processing a signal comprising:
- filtering first frequency components from the signal in a first signal processing branch leaving a first remaining portion of the signal;
- filtering second frequency components from the signal in a second signal processing branch leaving a second remaining portion of the signal;
- processing the first remaining portion in the first signal processing branch while processing the second remaining portion in the second signal processing branch to obtain first and second processed signal portions;
- and
- combining the first and second processed signal portions to obtain an output signal indicative of an input signal.
2 more elements
A channel read method comprising:
- receiving a read signal comprising encoded bits;
- passing the read signal to a plurality of signal processing branches, each signal processing branch configured to operate on different frequency components of the read signal and generate a branch output signal;
- combining the branch output signals from the plurality of signal processing branches through a summing node to generate a combined signal;
- and
- detecting and decoding the combined signal to obtain a bit output signal.
2 more elements
A system comprising:
- a plurality of parallel signal processing branches receiving an input signal, the signal processing branches including at least:
- a first signal processing branch configured to process a first portion of the input signal, the first signal processing branch including a first preamplifier configured to amplify the input signal with a first frequency response that passes signals in a frequency range of the first portion;
- and
- a second signal processing branch configured to process a second portion of the input signal, the second signal processing branch including a second preamplifier configured to amplify the input signal with a second frequency response that passes signals in a frequency range of the second portion;
- and
- a component configured to combine outputs from the first and second signal processing branches to obtain an output signal indicative of the input signal.
3 more elements
Dependencies are inferred from the claim text.