Apparatus and method for mitigating loss of signal content

1. An apparatus comprising:

a first sampler to oversample a signal, the signal to be processed for transmission through a channel having a notch region;

a bandpass filter, with passband response, to filter the oversampled signal in the notch region; and

a first modulator to translate the filtered signal to a higher frequency band than a frequency band of the notch region.

2. The apparatus of claim 1 , wherein the bandpass filter is implemented as a filter bank.

3. The apparatus of claim 2 , wherein the filter bank is to decompose the oversampled signal into multiple sub-band sections, and wherein the filtered signal is one of the decomposed signals in one of the sub-band sections.

4. The apparatus of claim 1 comprises a transmitter to transmit the translated filtered signal and the oversampled signal through the channel to a receiver, wherein the channel has a notch associated with the notch region.

5. The apparatus of claim 4 , wherein the receiver comprises a second modulator to modulate the translated filtered signal, received by the receiver, to a lower frequency band, wherein the lower frequency band is the frequency band of the notch region.

6. The apparatus of claim 5 , wherein the receiver comprises a reconstruction filter bank to combine the modulated filtered signal, generated by the second modulator, with the received oversampled signal which suffered notch degradation.

7. The apparatus of claim 6 , wherein the receiver comprises a down sampler to restore the oversampled signal to a frequency of the signal sampled by the first sampler.

8. A method performed by a transmitter, the method comprising:

oversampling a signal; and

translating, in response to the oversampling, at least a portion of the oversampled signal content in a notch region of a wired channel to a frequency band which is higher than a frequency band of the notch region.

9. The method of claim 8 comprising:

transmitting the oversampled signal and the translated signal content over the wired channel to a receiver.

10. The method of claim 9 , wherein the receiver is to modulate the translated signal content from the higher frequency band to a lower frequency band corresponding to the frequency band of the notch region.

11. The method of claim 10 , wherein the receiver is to combine the translated signal content, which is modulated to the lower frequency band, with the received oversampled signal which suffered notch degradation.

12. A system comprising:

a channel having a notch region;

a first Integrated Circuit (IC); and

a second IC coupled to the first IC via the channel, the second IC including a transmitter which comprises:

a first sampler to oversample a signal, the signal to be processed for transmission through the channel;

a bandpass filter, with passband response, to filter the oversampled signal in the notch region of the channel;

a first modulator to translate the filtered signal to a higher frequency band than a frequency band of the notch region; and

a driver to transmit the translated filtered signal and the oversampled signal to the first IC.

13. The system of claim 12 comprises an I/O interface which is to allow communication with another processor.

14. The system of claim 13 , wherein the I/O interface is a Serial Advanced Technology Attachment (SATA) interface.

15. The system of claim 12 , wherein the first IC is a memory controller and the second IC is a non-volatile memory.

16. The system of claim 15 , wherein the non-volatile memory is at least one of:

NAND flash memory,

NOR flash memory,

a Phase Change Memory (PCM),

a three dimensional cross point memory,

a resistive memory, nanowire memory,

a ferro-electric transistor random access memory (FeTRAM),

a magnetoresistive random access memory (MRAM) memory that incorporates memristor technology, or

a spin transfer torque (STT)-MRAM.

17. The system of claim 12 , wherein the first IC is a non-volatile memory and the second IC is a memory controller.

18. The system of claim 17 , wherein the non-volatile memory is at least one of:

a NAND flash memory,

a NOR flash memory,

a Phase Change Memory (PCM),

a three dimensional cross point memory,

a resistive memory, nanowire memory,

a ferro-electric transistor random access memory (FeTRAM),

a magnetoresistive random access memory (MRAM) memory that incorporates memristor technology, or

a spin transfer torque (STT)-MRAM.

19. The system of claim 12 , wherein the channel is an Open NAND Flash Interface (ONFI) compliant channel.

20. The system of claim 12 comprises a wireless interface which is to allow the first or second IC to wirelessly communicate with another device.

21. An apparatus comprising:

a filter to receive a signal on a first frequency band over a channel having a notch region, and to provide a filtered signal; and

a modulator coupled to the filter, the modulator is to modulate the filtered signal to a second frequency band, where the second frequency band is lower in frequency than the first frequency band, and where the second frequency band is a frequency band of the notch region of the channel.

22. The apparatus of claim 21 comprises a reconstruction filter bank to combine the modulated filtered signal with the received signal, the reconstruction filter bank to generate a reconstructed signal.

23. The apparatus of claim 22 comprises a down sampler to down sample the reconstructed signal to restore the received signal to a frequency of a signal sampled by a sampler of a transmitter.

24. The apparatus of claim 21 , wherein the filter has a passband response.