Interface device
First Claim
Patent Images
1. In an electronic system including a computer having at least an input port and an output port, said computer outputting print data, which is in format for printing, in parallel format through said output port, and a remotely-controllable device which is operable in accordance with a plurality of remocon codes;
- an interface device comprising;
a plurality of bus line terminals for transmitting said print data having more significant digits and less significant digits, a first set of said bus line terminals transmitting said more significant digits and a second set of said bus line terminals transmitting said less significant digits;
code converter means for converting said print data to output data, said code converter means comprising in turn;
a read-only memory connected to said bus line terminals;
first BCD-decimal decoder having 8 bit parallel data bus lines, for receiving said more significant digits from said data bus lines; and
a second BCD-decimal decoder having 8 bit parallel data bus lines, for receiving said more significant digits from said data bus lines;
a remocon transmitting integrated circuit for receiving said output data from said code converter means and outputting a remocon code signal in accordance with said output data;
amplifier means connected to said remocon transmitting integrated circuit for amplifying said remocon code signal;
a timing circuit, including a first timer having a first time constant, and a second timer having a second time constant that is twice as long as said first time constant; and
a video detection circuit for detecting a video signal in accordance with an output of said timing circuit.
1 Assignment
0 Petitions
Accused Products
Abstract
An interface device is made connectable to a printer parallel port of a computer and contains a memory device addressed by print data received from the computer. The device further includes an apparatus for generating a remocon code to remote-control controlled equipment on the basis of the data addressed in the memory device and which sends said code to the controlled equipment.
12 Citations
5 Claims
-
1. In an electronic system including a computer having at least an input port and an output port, said computer outputting print data, which is in format for printing, in parallel format through said output port, and a remotely-controllable device which is operable in accordance with a plurality of remocon codes;
- an interface device comprising;
a plurality of bus line terminals for transmitting said print data having more significant digits and less significant digits, a first set of said bus line terminals transmitting said more significant digits and a second set of said bus line terminals transmitting said less significant digits; code converter means for converting said print data to output data, said code converter means comprising in turn; a read-only memory connected to said bus line terminals; first BCD-decimal decoder having 8 bit parallel data bus lines, for receiving said more significant digits from said data bus lines; and a second BCD-decimal decoder having 8 bit parallel data bus lines, for receiving said more significant digits from said data bus lines; a remocon transmitting integrated circuit for receiving said output data from said code converter means and outputting a remocon code signal in accordance with said output data; amplifier means connected to said remocon transmitting integrated circuit for amplifying said remocon code signal; a timing circuit, including a first timer having a first time constant, and a second timer having a second time constant that is twice as long as said first time constant; and a video detection circuit for detecting a video signal in accordance with an output of said timing circuit. - View Dependent Claims (2, 3, 4, 5)
- an interface device comprising;
Specification