Apparatus and method for providing a read signal for an information processing device

A method for providing a read signal for an information processing device in at least two operational modes;

• the method comprising the steps of:
• (a) in no particular order:
• (1) providing a read signal control apparatus configured for receiving an input signal containing said information at a read signal control base terminal, receiving a supply signal at a read signal control supply terminal, and presenting said read signal representing said information at a read signal control output terminal for access by said information processing device;
• (2) providing a first bias unit switchingly coupled with said read signal output terminal via a first switch unit;
• and
• (3) providing a second bias unit switchingly coupled with said read signal output terminal via a second switch unit;
• (b) if said providing is to be effected in a first operational mode of said at least two operational modes, configuring said first switch unit and said second switch unit to electrically couple said first bias unit with said read signal output terminal and to electrically isolate said second bias unit from said read signal output terminal;
• and
• (c) if said providing is to be effected in a second operational mode of said at least two operational modes, configuring said first switch unit and said second switch unit to electrically couple said second bias unit with said read signal output terminal and to electrically isolate said first bias unit from said read signal output terminal.

An apparatus for providing a read signal at an output locus for access by an information processing device;

• the apparatus receiving an input signal containing said information;
• the apparatus comprising:
• (a) a read signal control unit;
• said read signal control unit receiving said input signal at a read signal control unit input locus;
• read signal control unit being coupled with said output locus and controlling said read signal;
• (b) a plurality of switching units;
• (c) a plurality of bias arrays coupled with said plurality of switching units;
• (d) a first selected bias array set of said plurality of bias arrays cooperating with said plurality of switching units in a first orientation to couple said first selected bias array set with said read signal control unit to establish the apparatus in a first operational mode;
• and
• (e) a second selected bias array set of said plurality of bias arrays cooperating with said plurality of switching units in a second orientation to couple said second selected bias array set with said read signal control unit to establish the apparatus in a second operational mode;
• the apparatus operating at a first power level to present said read signal at a defined common mode voltage value at said output locus when in said first operational mode;
• the apparatus operating at a second power level to present said read signal substantially at said defined common mode voltage value at said output locus when in said second operational mode.