US 11,705,987 B2
Apparatus and method for handling an incoming communication data frame
Wai Keung Frankie Chan, Singapore (SG); Klaus Scheibert, Grasbrunn (DE); and Harald Zweck, Munich (DE)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on May 28, 2021, as Appl. No. 17/333,365.
Claims priority of application No. 102020114547.0 (DE), filed on May 29, 2020.
Prior Publication US 2021/0376954 A1, Dec. 2, 2021
Int. Cl. H04L 1/20 (2006.01); H04L 1/00 (2006.01)
CPC H04L 1/0045 (2013.01) [H04L 1/0061 (2013.01); H04L 1/201 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An apparatus for handling an incoming communication data frame having a plurality of bits, the apparatus comprising:
a plurality of data matchers, each data matcher configured to compare a subset of the plurality of bits of the communication data frame with a predetermined data pattern of a plurality of data patterns and to provide a data matcher output to indicate the result of the data matcher comparison;
a plurality of selectors, each selector configured to compare a subset of the data matcher outputs of the plurality of data matchers with a predetermined selection pattern of a plurality of selection patterns and to provide a selector output to indicate the result of the selector comparison; and
a frame filter configured to transfer the incoming communication data frame to application logic only if the selector outputs of the plurality of selectors match a predetermined filter pattern, and to also transfer the selector outputs of the plurality of selectors to the application logic.