Endless loop voice data storage and retrievable apparatus and method thereof
DCFirst Claim
1. In a method of storing and retrieving audio from a digital audio logger, the steps comprising:
- monitoring an audio source,storing audio data from the audio source in a buffer,writing the audio data from the buffer onto a digital audio tape and a random access storage device, andretrieving audio from the random access storage device while audio data is written into the digital audio tape and the random access storage device.
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Abstract
Apparatus and method for storing and retrieving audio data simultaneously. A digital audio logger is provided with a digital audio tape (DAT) for permanent storage of audio data and with a random access storage (RAS) device that provides fast retrieval of audio. Both the DAT and RAS devices have audio written from a buffer that initially stores audio data temporarily. Two pointers are provided for the RAS device. Because of the randomness characteristic of the RAS device, data can be retrieved rapidly with a first one of the pointers and for this reason has advantages in fast retrieval. The RAS device communicates with a supervisor whereby data can be retrieved therefrom through the first pointer while the RAS device is receiving data from the buffer through the second pointer.
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Citations
8 Claims
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1. In a method of storing and retrieving audio from a digital audio logger, the steps comprising:
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monitoring an audio source, storing audio data from the audio source in a buffer, writing the audio data from the buffer onto a digital audio tape and a random access storage device, and retrieving audio from the random access storage device while audio data is written into the digital audio tape and the random access storage device. - View Dependent Claims (2, 3, 4)
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5. In a system for processing audio having an interface for receiving audio from an audio source, a digital signal processor in communication with the interface for compressing the audio signals, a controller in communication with the digital signal processor for receiving audio therefrom and arranging data in a prescribed order, a supervisor in communication with said controller accessing data from said system, and a buffer in communication with the controller for receiving arranged audio from the controller, the improvement comprising:
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a digital audio tape drive unit in communication with the buffer for receiving arranged audio data from the buffer, a random access storage device, and a pair of pointers providing communication between said buffer and random storage device, the first of said pointers operative for transmitting audio data to said random access storage device from said buffer and the second of said pointers being operative to send audio data from said random access storage device to said controller. - View Dependent Claims (6, 7)
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8. An audio data storage device, comprising:
a random access storage device having a primary partition for storing audio data and a secondary partition for storing means for locating data on said primary partition and a pair of pointers in communication with said random access memory, a first of said pointers being operated to transmit data to said random access storage device and the second of said pointers being operative to retrieve audio data from said random access storage device.
Specification