Digital audio memory system
First Claim
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1. Apparatus for storage and retrieval of audible information, comprising:
- control means that includes, timing means generating a basic timing pulse at a selected frequency, counter means responsive to said timing pulses to generate a random access memory address code output, and a microprocessor receiving code input indicating information memory location in storage and outputting at least a memory group address code output;
memory card means that includes plural memory groups of random access memory means arrayed in parallel wherein each of said memory groups consists of an equal number of said random access memory means, means connecting said random access memory address code output to control ports of each of said random access memory means, decoder means receiving said memory group address code output to enable a selected one of said plural memory groups of random access memory means, and input/output means selectively connected to respective random access memory means of a selected memory group; and
audio means including first converter means for digitizing audio for input to said input/output means for storage at a selected random access memory location, and second converter means for receiving digital data output form a selected random access memory location and outputting analog audio signal for audible output.
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Abstract
A method and apparatus for rapid access digital storage and playback of audio information that consists of a large array of solid state random access memory devices connected in a basic multi-group, multi-card, multi-unit configuration that is addressable in one second increments for a selected duration. Storage or playback with requisite signal conversion may be effected by inputting real time decimal address indications to select a designated time and duration of the total memory capacity.
34 Citations
22 Claims
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1. Apparatus for storage and retrieval of audible information, comprising:
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control means that includes, timing means generating a basic timing pulse at a selected frequency, counter means responsive to said timing pulses to generate a random access memory address code output, and a microprocessor receiving code input indicating information memory location in storage and outputting at least a memory group address code output; memory card means that includes plural memory groups of random access memory means arrayed in parallel wherein each of said memory groups consists of an equal number of said random access memory means, means connecting said random access memory address code output to control ports of each of said random access memory means, decoder means receiving said memory group address code output to enable a selected one of said plural memory groups of random access memory means, and input/output means selectively connected to respective random access memory means of a selected memory group; and audio means including first converter means for digitizing audio for input to said input/output means for storage at a selected random access memory location, and second converter means for receiving digital data output form a selected random access memory location and outputting analog audio signal for audible output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for recording and playback of selected segments of audio information, comprising:
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defining a memory bank by connecting a plurality of similar random access memory devices as at least one unit having plural memory cards, each memory card consisting of a plurality of memory groups with each group having a preset number of memory devices with addressable locations; addressing said memory bank in real time in one second increments wherein a first decimal input addresses a selected unit in the memory bank, a second decimal input addresses a selected memory card in the unit, a third decimal input addresses a selected group on the card, and a fourth decimal input addresses a selected location in the group; enabling selective storage and playback of data from the addressed location of the memory bank; and effecting selective analog/digital and digital/analog conversion of data for respective storage and playback functions. - View Dependent Claims (19, 20, 21, 22)
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Specification