Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate
2008-01-01
2008-01-01
Do, Chat C. (Department: 2193)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
Reexamination Certificate
active
09963480
ABSTRACT:
A multiply-accumulate module (100) includes a multiply-accumulate core (120), which includes a plurality of Booth encoder cells (104a). The multiply-accumulate core (120) also includes a plurality of Booth decoder cells (110a) connected to at least one of the Booth encoder cells (104a) and a plurality of Wallace tree cells (112a) connected to at least one of the Booth decoder cells (110a). Moreover, at least one first Wallace tree cell (112a1) or at least one first Booth decoder cell (110a1), or any combination thereof, includes a first plurality of transistors, and at least one second Wallace tree cell (112a2) or at least one second Booth decoder cell (110a2), or any combination thereof, includes a second plurality of transistors. In addition, at least one critical path of the multiply-accumulate module (100) includes the at least one first cell and a width of at least one of the first plurality of transistors is greater than a width of at least one of the second plurality of transistors.
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Awaka Kaoru
Muramatsu Shigetoshi
Takahashi Hiroshi
Takegama Akihiro
Brady W. James
Do Chat C.
Marshall, Jr. Robert D.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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