Invention Grant
US09247310B2 DOCSIS out-of-band control signal frequency conversion for legacy set-top boxes
有权
DOCSIS传统机顶盒的带外控制信号频率转换
- Patent Title: DOCSIS out-of-band control signal frequency conversion for legacy set-top boxes
- Patent Title (中): DOCSIS传统机顶盒的带外控制信号频率转换
-
Application No.: US13472691Application Date: 2012-05-16
-
Publication No.: US09247310B2Publication Date: 2016-01-26
- Inventor: John T. Chapman , Mark A. Palazzo
- Applicant: John T. Chapman , Mark A. Palazzo
- Applicant Address: US CA San Jose
- Assignee: Cisco Technologies, Inc.
- Current Assignee: Cisco Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Edell, Shapiro & Finnan, LLC
- Main IPC: H04N21/426
- IPC: H04N21/426 ; H04N21/61 ; H04N21/65 ; H04N7/173 ; H04N21/6543 ; H04N21/6547 ; H04N7/10
Abstract:
Techniques are provided for up-converting a downstream set-top box control signal to a frequency that is above a cable television system upstream communications band. The downstream set-top box control signal is down-converted to a frequency in a set-top box control band and injected into a set-top box communications pathway. The downstream set-top box control signal may be up-converted from baseband or from the set-top box control band to a frequency in cable television system downstream communications band and transmitted on a DOCSIS RF channel.
Public/Granted literature
- US20130276047A1 DOCSIS OUT-OF-BAND CONTROL SIGNAL FREQUENCY CONVERSION FOR LEGACY SET-TOP BOXES Public/Granted day:2013-10-17
Information query
