Varying cue delay circuit

Details Varying cue delay circuit Varying cue delay circuit

2007-04-24

2007-04-24

Shah, Manish (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S009000, C347S148000, C368S010000

Reexamination Certificate

active

10948071

ABSTRACT:
An integrated circuit for an ink jet printer includes a state machine with numerous sequenced logic circuits to generate buffered control signals from the tachometer input. A counter counts one of the buffered control signals from the state machine forming a write address. A synchronous up-down counter receives a cue delay value when the up-down counter receives a buffered control signal thereby forming a delayed count. An adder receives the write address and the delayed count and generates a read address. A comparator compares the delayed count to the cue delay value and sets a comparator output depending upon whether the delayed count is greater than or less than the cue delay value. A multiplexer receives the read and write addresses and the buffered control signals and sends a single to RAM. A logic circuit receives the buffered control signals and outputs a delayed cue signal to the printing system.

REFERENCES:
patent: 6241334 (2001-06-01), Haselby
patent: 6912179 (2005-06-01), Duke
patent: 2004/0183842 (2004-09-01), Kobayashi et al.

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