Portable data processing and storage system
First Claim
1. A portable data processing and storage system, having a memory and means for feeding data to, and retrieving it from the memory, which system comprises:
- a. said memory capable of storage serially of digital data,b. means, connected in circuit to the memory, for converting output data from the memory to analogue form, andc. controlling means for controlling the input and output of data from the memory which means scans all data from the memory, is responsive to control data present in the input or output data stream, and instructs said memory to be ready to receive and store incoming data, and controls the input of analogue data into the memory;
(a), (b) and (c) being mounted on a portable card,and on a housing of the card two connectors by which the system can be connected to an input of digital data and to an output for receipt of the analogue or digital form data, and one or two connectors to a power supply for the system.
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Accused Products
Abstract
A credit card size portable system comprises a bubble memory for storage serially of digital data, especially of sound analogue signal which has been digitally encoded including, a decoder means for converting the memory output into analogue form, preferably several decoders each for one sound band, a control register for controlling input and output of data from the memory and which is responsive to control data present in the input and output stream, and input and output for the data entering and leaving the card system. The memory can be of 8 megabyte size, which can record 31/2 minutes of music signal. Optical input can be used, with a photoelectric converter at the input. A card is readily programmed with the digital data and can readily be stored or transported for replay of sound signal as desired, in place of conventional discs or cassettes. The control data bits are detected by the control register and serve to control the recording and replay steps. The digital data may be replayed directly from memory without passing through the decoders for input into another memory upon command from the control register.
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Citations
14 Claims
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1. A portable data processing and storage system, having a memory and means for feeding data to, and retrieving it from the memory, which system comprises:
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a. said memory capable of storage serially of digital data, b. means, connected in circuit to the memory, for converting output data from the memory to analogue form, and c. controlling means for controlling the input and output of data from the memory which means scans all data from the memory, is responsive to control data present in the input or output data stream, and instructs said memory to be ready to receive and store incoming data, and controls the input of analogue data into the memory;
(a), (b) and (c) being mounted on a portable card,and on a housing of the card two connectors by which the system can be connected to an input of digital data and to an output for receipt of the analogue or digital form data, and one or two connectors to a power supply for the system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification