公开(公告)号：AU7671296A

公开(公告)日：1997-06-19

申请号：AU7671296

申请日：1996-11-05

Applicant: MOTOROLA INC

Inventor： BURKE TIMOTHY M ,  MANNETTE MICHAEL ,  BAHARY ROB

IPC: H04H60/94 ,  H04H60/97 ,  H04J3/06 ,  H04L12/28 ,  H04J3/14 ,  H04J3/16 ,  H04H1/08

Abstract: A method for synchronizing timing of signal transmissions in a telecommunication system (100) determines a "fixed portion" (222) of the propagation delay between the central unit (102) and subscribers (206, 208) in a particular node (202). Additionally, the method determines a 'variable portion' (226) of the propagation delay that accounts for the variation of spacing of different subscribers (e.g., homes (206, 208)) on a particular node (202). The preferred method offsets the control unit's (102) receiving window (410) in accordance with the fixed portion, and directs the various subscriber units (206, 208) to offset the timing of signals (314, 322) (i.e., bursts of data) that they transmit by the variable portion (226).

公开(公告)号：DE19731476A1

公开(公告)日：1998-02-05

申请号：DE19731476

申请日：1997-07-22

Applicant: MOTOROLA INC

Inventor： BURKE TIMOTHY M ,  STEINBRENNER KURT ,  MANNETTE MICHAEL

IPC: H04L1/22 ,  H04M3/12 ,  H04M3/18

Abstract: A telephony system having automatic timing adjustment for diverse routing of HFC systems has a signal stream routing through a signal line loop (140) between a head-end (120) and at least one communication unit (152). If a fault occurs within the signal line loop (140), recognized by the head-end (120) when a short uplink burst from the communication unit (152) does not align within a predetermined timing window, the head-end (120) will cycle through predetermined delay parameters corresponding to various alternate signal line loops made up of redundant signal lines (146, 148). Once the predetermined delay parameter corresponding to the current alternate signal line loop is determined, normal operation of the system resumes.

公开(公告)号：BR9606804A

公开(公告)日：1997-12-30

申请号：BR9606804

申请日：1996-11-05

Applicant: MOTOROLA INC

Inventor： BURKE TIMOTHY M ,  MANNETTE MICHAEL ,  BAHARY ROB

IPC: H04H60/94 ,  H04H60/97 ,  H04J3/06 ,  H04L12/28 ,  H04J3/14 ,  H04J3/16 ,  H04H1/08

Abstract: A method for synchronizing timing of signal transmissions in a telecommunication system (100) determines a "fixed portion" (222) of the propagation delay between the central unit (102) and subscribers (206, 208) in a particular node (202). Additionally, the method determines a 'variable portion' (226) of the propagation delay that accounts for the variation of spacing of different subscribers (e.g., homes (206, 208)) on a particular node (202). The preferred method offsets the control unit's (102) receiving window (410) in accordance with the fixed portion, and directs the various subscriber units (206, 208) to offset the timing of signals (314, 322) (i.e., bursts of data) that they transmit by the variable portion (226).

公开(公告)号：DE19681172T1

公开(公告)日：1998-01-22

申请号：DE19681172

申请日：1996-11-05

Applicant: MOTOROLA INC

Inventor： BURKE TIMOTHY M ,  MANNETTE MICHAEL ,  BAHARY ROB

IPC: H04H60/94 ,  H04H60/97 ,  H04J3/06 ,  H04L12/28 ,  H04J3/14 ,  H04J3/16 ,  H04H1/08

Abstract: A method for synchronizing timing of signal transmissions in a telecommunication system (100) determines a "fixed portion" (222) of the propagation delay between the central unit (102) and subscribers (206, 208) in a particular node (202). Additionally, the method determines a 'variable portion' (226) of the propagation delay that accounts for the variation of spacing of different subscribers (e.g., homes (206, 208)) on a particular node (202). The preferred method offsets the control unit's (102) receiving window (410) in accordance with the fixed portion, and directs the various subscriber units (206, 208) to offset the timing of signals (314, 322) (i.e., bursts of data) that they transmit by the variable portion (226).