The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2024
Filed:
Jun. 21, 2021
Power saving floating point multiplier-accumulator with a high precision accumulation detection mode
Redpine Signals, Inc., San Jose, CA (US);
Dylan Finch, San Jose, CA (US);
Ceremorphic, Inc., San Jose, CA (US);
Abstract
A floating point multiplier-accumulator (MAC) multiplies and accumulates N pairs of floating point values using N MAC processors operating simultaneously, each pair of values comprising an input value and a coefficient value to be multiplied and accumulated. The pairs of floating point values are simultaneously processed by the plurality of MAC processors, each of which output a signed integer form fraction with a first bitwidth and a second bitwidth, along with a maximum exponent. The first bitwidth signed integer form fractions are summed by an adder tree using the first bitwidth to form a first sum, and when an excess leading 0 condition is detected, a second adder tree operative on the second bitwidth integer form fractions forms a second sum. The first sum or second sum, along with the maximum exponent, is converted into floating point result.