Signal processing and memory arrangement
First Claim
Patent Images
1. An analog memory system comprising:
- data input means for generating an analog input data signal;
reference input means for generating an analog input reference signal;
means for generating an analog memory input signal in response to the analog input data signal and the analog input reference signal;
memory storing means for storing the analog memory input signal;
memory output means for generating an analog memory output signal in response to the analog signal stored in said memory storing means, said output means including data output means for generating an analog output data signal in response to the analog memory output signal and reference output means for generating an analog output reference signal in response to the analog memory output signal; and
means for processing the analog output data signal in response to the analog output reference signal.
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Abstract
An improved arrangement is provided for processing analog and digital signals, where particular advantages are obtained using charge coupled devices (CCDs). A memory arrangement utilizes a novel refresh circuit to re-establish signal amplitudes which are degraded by a CCD memory. Further, various gating and control circuits are used for loading and unloading the memory. A CCD signal processor and memory arrangement is provided for in an embodiment of an array processing system to exemplify one application of these arrangements.
35 Citations
40 Claims
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1. An analog memory system comprising:
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data input means for generating an analog input data signal; reference input means for generating an analog input reference signal; means for generating an analog memory input signal in response to the analog input data signal and the analog input reference signal; memory storing means for storing the analog memory input signal; memory output means for generating an analog memory output signal in response to the analog signal stored in said memory storing means, said output means including data output means for generating an analog output data signal in response to the analog memory output signal and reference output means for generating an analog output reference signal in response to the analog memory output signal; and means for processing the analog output data signal in response to the analog output reference signal. - View Dependent Claims (2, 3, 4, 5)
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6. A memory system for storing electrical signals, said memory system comprising:
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memory means for storing a plurality of analog signals as stored electrical analog signals; shifting means for shifting the stored electrical analog signals; analog data refresh means including means for generation an analog reference signal; and analog-to-digital converter means for generating digital output signals in response to the stored electrical analog signals. - View Dependent Claims (7, 8, 9, 10)
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11. A memory system comprising:
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memory means for storing information, said memory means including (a) means for storing the information as a plurality of analog signals and (b) means for shifting the stored analog signals, wherein the shifting of the stored analog signals degrades the stored analog signals and means for refreshing the degraded analog signals in response to one of the stored analog signals degraded by the shifting including means for generating an analog reference signal. - View Dependent Claims (39)
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12. A memory system comprising:
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memory means for storing information, said memory means including storing means for storing a plurality of analog signals and shifting means for shifting the stored analog signals, wherein the shifting of the stored analog signals degrades the stored analog signals; means for refreshing the degraded analog signals including means for generating an analog reference signal; and means for generating digital output signals in response to the refreshed analog signals. - View Dependent Claims (23, 24)
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13. A memory system comprising:
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reference input means for generating an analog reference signal; information input means for generating an analog information signal; analog input means for generating an analog input signal in response to the analog reference signal and the analog information signal; and memory means for storing information, said memory means including (a) means for storing the information as a plurality of analog signals and (b) means for shifting the stored analog signals, wherein the shifting of the stored analog signals degrades the stored analog signals; and means for refreshing the degraded analog signals. - View Dependent Claims (40)
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14. A memory system comprising:
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memory means for storing information, said memory means including (a) storing means for storing a plurality of analog signals and (b) shifting means for shifting the stored analog signals, wherein the shifting of the stored analog signals degrades the stored analog signals and means for refreshing the degraded analog signals wherein said refreshing means includes (a) reference output means for generating an analog reference output signal in response to a stored reference signal and (b) information output means for refreshing the degraded analog signals in response to the reference output signal. - View Dependent Claims (15, 25, 26, 27, 28, 37)
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16. A memory system comprising:
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data input means for generating a digital input signal;
digital to analog converter means for generating an analog input signal in response to the digital input signal;reference input means for generating a reference input signal; means for generating a memory input signal in response to the analog input signal and the reference input signal; memory means for storing the memory input signal; output means for generating a memory output signal in response to the signal stored in said memory means, said output means including (a) data output means for generating an output data signal in response to the memory output signal and (b) reference output means for generating an output reference signal in response to the memory output signal; and means for processing the output data signal in response to the output reference signal. - View Dependent Claims (17, 18, 29, 30, 38)
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19. A memory system comprising:
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information input means for generating an analog information signal; reference input means for generating an analog reference signal; storing means for storing the analog information signal generated by said information input means and the analog reference signal generated by said reference input means; and
refreshing means for generating a refreshed analog information signal in response to the stored analog information signal and the stored analog reference signal. - View Dependent Claims (20, 21, 22)
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31. A hybrid memory system for storing digital information in analog signal form, said system comprising;
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memory means for storing a plurality of electrical analog signals; shifting means for shifting the stored electrical analog signals; converter means for generating electrical digital output signals in response to the stored analog signals; means for storing a reference signal; and means for processing the stored analog signals in response to the stored reference signal.
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32. A hybrid memory system for storing digital information in analog signal form, said system comprising:
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memory means for storing a plurality of electrical analog signals; shifting means for shifting the stored electrical analog signals; converter means for generating electrical digital signals in response to the stored analog signals; means for storing a reference signal in said memory means and means for refreshing the stored analog signals in response to the stored reference signal.
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33. A hybrid memory system for storing digital information in analog signal form, said system comprising:
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memory means for storing a plurality of electrical analog signals; shifting means for shifting the stored electrical analog signals; converter means for generating electrical digital signals in response to the stored analog signals; means for generating an analog input signal in response to the digital information; means for generating an analog reference input signal; and means for generating the plurality of analog signals to be stored in said memory means in response to the analog input signal and the analog reference input signal.
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34. A hybrid memory system storing digital information in analog signal form, said system comprising:
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memory means for storing a plurality of electrical analog signals; shifting means for shifting the stored electrical analog signals; converter means for generating electrical digital signals in response to the stored analog signals; and means for storing a reference signal and means for refreshing the stored analog signals in response to the stored reference signal.
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35. A memory system comprising:
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input means for (selecting one of a plurality of) generating digital input signals means for generating electrical analog signals in response to the digital input signals; memory means for storing a plurality of the electrical analog signals, means for shifting the stored electrical analog signals; converter means for generating digital output signals in response to the stored electrical analog signals; means for storing a reference signal and means for processing the stored analog signals in response to the stored reference signal.
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36. A hybrid memory system for storing analog information in response to digital input information, said system comprising:
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memory means for storing information, said memory means including (a) means for storing a plurality of analog signals (b) means for shifting the stored analog signals, wherein the shifting of the stored analog signals degrades the stored analog signals; means for refreshing the degraded analog signals; means for storing a reference signal, wherein said refreshing means includes means for refreshing the degraded analog signals in response to the stored referece signal.
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Specification