DATA STORAGE COMMUNICATION CHANNEL AND METHOD OF TRANSMITTING DATA
First Claim
Patent Images
1. A data storage communication channel comprising:
- a transmission medium;
an initiator interface comprising first and second serial transmit ports for transmitting first and second serial transmit signals, respectively; and
a first frequency selective multiplexer comprising;
first and second modulators which are operatively coupled to the first and second serial transmit ports, respectively, and modulate the first and second serial transmit signals in first and second frequency bands, respectively, wherein the first frequency band is different than the second frequency band; and
a first circulator which is operatively coupled between the first and second modulators and the transmission medium and which combines the first and second modulated serial transmit signals into a first transmission signal and applies the first transmission signal to the transmission medium.
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Abstract
A data storage communication channel includes a transmission medium, an initiator interface and a frequency selective multiplexer. The initiator interface includes first and second serial transmit ports. The frequency selective multiplexer includes first and second modulators and a circulator. The first and second modulators have first and second frequency bands and are coupled to the first and second serial transmit ports, respectively. The circulator is coupled between the first and second modulators and one end of the transmission medium.
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Citations
19 Claims
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1. A data storage communication channel comprising:
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a transmission medium;
an initiator interface comprising first and second serial transmit ports for transmitting first and second serial transmit signals, respectively; and
a first frequency selective multiplexer comprising;
first and second modulators which are operatively coupled to the first and second serial transmit ports, respectively, and modulate the first and second serial transmit signals in first and second frequency bands, respectively, wherein the first frequency band is different than the second frequency band; and
a first circulator which is operatively coupled between the first and second modulators and the transmission medium and which combines the first and second modulated serial transmit signals into a first transmission signal and applies the first transmission signal to the transmission medium. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A data storage communication channel comprising:
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a transmission medium for carrying a transmission signal having first and second serial, digital transmit signals modulated in first and second frequency bands, respectively;
a first frequency selective demultiplexer comprising;
first and second demodulators which are operatively coupled to the transmission medium to receive the first transmission signal and which demodulate the first and second serial, digital transmit signals from the first transmission signal in the first and second frequency bands, respectively; and
first and second data storage interfaces which are operatively coupled to the first and second demodulators, respectively, to receive the demodulated first and second serial transmit signals. - View Dependent Claims (8, 9)
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10. A data storage system backplane comprising:
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a transmission media interface having a channel transmit port and a channel receive port;
first and second data storage interfaces, each data storage interface comprising a serial transmit port and a serial receive port;
a frequency selective multiplexer operatively coupled between the channel transmit port and the serial transmit ports of the first and second data storage interfaces; and
a frequency selective demultiplexer operatively coupled between the channel receive port and the serial receive ports of the first and second data storage interfaces. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of transmitting a plurality of data signals from an initiator interface to a plurality of data storage interfaces which are operatively coupled to a data storage system backplane, the method comprising the steps of:
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(a) frequency multiplexing the plurality of data signals together, wherein each of the plurality of data signals is modulated in a respective frequency band and wherein the respective frequency bands are separate from one another;
(b) transmitting the frequency multiplexed plurality of data signals to the data storage system backplane through a serial transmission medium;
(c) frequency demultiplexing the frequency multiplexed plurality of data signals received at the data storage system backplane, wherein each of the plurality of data signals is demodulated from the respective frequency band; and
(d) applying each of the frequency demultiplexed plurality of data signals to a respective one of the plurality of data storage interfaces.
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18. A method of transmitting a plurality of data signals from a plurality of data storage interfaces, which are operatively coupled to a data storage system backplane, to an initiator interface, the method comprising the steps of:
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(a) receiving each of the plurality of data signals from a respective one of the plurality of data storage interfaces, at the data storage system backplane;
(b) frequency multiplexing the plurality of data signals together, wherein each of the plurality of data signals is modulated in a respective frequency band and wherein the respective frequency bands are separate from one another;
(c) transmitting the frequency multiplexed plurality of data signals to the initiator interface through a serial transmission medium;
(d) frequency demultiplexing the frequency multiplexed plurality of data signals received at the initiator interface, wherein each of the plurality of data signals is demodulated from the respective frequency band; and
(e) applying each of the frequency demultiplexed plurality of data signals to a respective port of the initiator interface.
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19. A data storage communication channel comprising:
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a plurality of data storage interfaces; and
communication means for transmitting data to and receiving data from the plurality of data storage interfaces by frequency multiplexing the data over a transmission medium.
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Specification