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公开(公告)号：CA2008879A1
公开(公告)日：1990-08-27
申请号：CA2008879
申请日：1990-01-30
Applicant: MOTOROLA INC
Inventor： ERHART RICHARD A , DAVIS WALTER L , HEROLD BARRY W
Abstract: An apparatus for determining if a received binary word corresponds to the true or complement version of a stored binary word includes means for serially multiplexing the bits of each binary word to the inputs of an exclusive OR gate. The exclusive-OR gate generates a logical high signal each time a mismatch occurs. These signals are applied directly to an error counter and, after inversion, to a match counter. The contents of the error counter and match counter are compared to a stored threshold number. A first signal is generated if the contents of the error counter exceeds the threshold. A second signal is generated if the contents of the match counter exceeds the threshold. Upon the occurrence of both signals, the serial comparison process is terminated.
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公开(公告)号：DK0509038T3
公开(公告)日：1996-05-20
申请号：DK91902549
申请日：1990-12-20
Applicant: MOTOROLA INC
Inventor： DELUCA MICHAEL J , ERHART RICHARD A , DELUCA JOAN S
Abstract: An apparatus and method for processing a signal is capable of determining the presence or absence of a signal having a predetermined baud rate. By initializing counting registers to either first or second values, and receiving the signal, either the presence or absence of the baud rate may be more rapidly detected. Rapid detection provides for improved battery savings when the invention is used within a portable receiver such as a pager. The invention provides for positive detection of the predetermined baud rate while rejecting a baud rate being an integer divisor of the predetermined baud rate. Additionally, as a result of the determination of the presence of the predetermined baud rate, a sample clock may be established for receiving data at the baud rate.
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Patent Agency Ranking
公开(公告)号：HK1000761A1
公开(公告)日：1998-04-24
申请号：HK97102304
申请日：1997-12-01
Applicant: MOTOROLA INC
Inventor： DELUCA MICHAEL J , ERHART RICHARD A , DELUCA JOAN S
Abstract: An apparatus and method for processing a signal is capable of determining the presence or absence of a signal having a predetermined baud rate. By initializing counting registers to either first or second values, and receiving the signal, either the presence or absence of the baud rate may be more rapidly detected. Rapid detection provides for improved battery savings when the invention is used within a portable receiver such as a pager. The invention provides for positive detection of the predetermined baud rate while rejecting a baud rate being an integer divisor of the predetermined baud rate. Additionally, as a result of the determination of the presence of the predetermined baud rate, a sample clock may be established for receiving data at the baud rate.
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公开(公告)号：ES2084807T3
公开(公告)日：1996-05-16
申请号：ES91902549
申请日：1990-12-20
Applicant: MOTOROLA INC
Inventor： DELUCA MICHAEL J , ERHART RICHARD A , DELUCA JOAN S
Abstract: An apparatus and method for processing a signal is capable of determining the presence or absence of a signal having a predetermined baud rate. By initializing counting registers to either first or second values, and receiving the signal, either the presence or absence of the baud rate may be more rapidly detected. Rapid detection provides for improved battery savings when the invention is used within a portable receiver such as a pager. The invention provides for positive detection of the predetermined baud rate while rejecting a baud rate being an integer divisor of the predetermined baud rate. Additionally, as a result of the determination of the presence of the predetermined baud rate, a sample clock may be established for receiving data at the baud rate.
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公开(公告)号：AT135518T
公开(公告)日：1996-03-15
申请号：AT91902549
申请日：1990-12-20
Applicant: MOTOROLA INC
Inventor： DELUCA MICHAEL J , ERHART RICHARD A , DELUCA JOAN S
Abstract: An apparatus and method for processing a signal is capable of determining the presence or absence of a signal having a predetermined baud rate. By initializing counting registers to either first or second values, and receiving the signal, either the presence or absence of the baud rate may be more rapidly detected. Rapid detection provides for improved battery savings when the invention is used within a portable receiver such as a pager. The invention provides for positive detection of the predetermined baud rate while rejecting a baud rate being an integer divisor of the predetermined baud rate. Additionally, as a result of the determination of the presence of the predetermined baud rate, a sample clock may be established for receiving data at the baud rate.
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公开(公告)号：CA2008879C
公开(公告)日：1994-01-04
申请号：CA2008879
申请日：1990-01-30
Applicant: MOTOROLA INC
Inventor： ERHART RICHARD A , DAVIS WALTER L , HEROLD BARRY W
Abstract: An apparatus for determining if a received binary word corresponds to the true or complement version of a stored binary word includes means for serially multiplexing the bits of each binary word to the inputs of an exclusive OR gate. The exclusive OR gate generates a logical high signal each time a mismatch occurs. These signals are applied directly to an error counter and, after inversion, to a match counter. The contents of the error counter and match counter are compared to a stored threshold number. A first signal is generated if the contents of the error counter exceeds the threshold. A second signal is generated if the contents of the match counter exceeds the threshold. Upon the occurrence of both signals, the serial comparison process is terminated.
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公开(公告)号：CA2107769A1
公开(公告)日：1992-10-09
申请号：CA2107769
申请日：1992-02-20
Applicant: MOTOROLA INC
Inventor： ERHART RICHARD A , WILLARD DAVID F , MITTEL JAMES G
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