Registers – Records – Conductive
Patent
1994-11-18
1997-10-21
Hajec, Donald T.
Registers
Records
Conductive
235441, G06K 1906, G06K 706
Patent
active
056799446
ABSTRACT:
A circuit positioned in a substantially token-shaped body, the circuit that comprises (a) a serial port to receive and transmit information following a write signal, a read signal, and a program signal; (b) a scratchpad memory coupled to the serial port to hold information that is received or transmitted; (c) an electrically programmable memory coupled to the scratchpad memory; (d) program port to receive program information and program the electrically programmable memory, said program port deriving all voltages necessary to program said electrically programmable memory from said program signal; and (e) control logic coupled to the serial port and the scratchpad memory and the electrically programmable memory, the control logic transfers information to and from the scratchpad memory to the electrically programmable memory as a block pursuant to a block transfer command received at the serial port. The memory subsections comprise a block of memory that can redirects data requests to other locations in the memory subsections and can be write protected by protecting information found in the block and/or by preventing the block from being redirected.
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Cusey James P.
Harrington Bradley M.
Dallas Semiconductor Corporation
Hajec Donald T.
Le Thien Minh
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