Invention Grant
- Patent Title: Signalling circuit, processing device and safety critical system
- Patent Title (中): 信号电路，处理装置和安全关键系统
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Application No.: US14232479Application Date: 2011-08-01
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Publication No.: US08957702B2Publication Date: 2015-02-17
- Inventor: Mathieu Lesbats , Hubert Bode , Rafael Pena Bello
- Applicant: Mathieu Lesbats , Hubert Bode , Rafael Pena Bello
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- International Application: PCT/IB2011/053419 WO 20110801
- International Announcement: WO2013/017913 WO 20130207
- Main IPC: H03K19/0175
- IPC: H03K19/0175 ; H04L25/02 ; H03K19/003
Abstract:
A signalling circuit for a signal channel of a communication network comprises a communication network terminal connectable to the signal channel and to a voltage supply; an input terminal connectable to receive a transmit signal; a driver device comprising a first driver terminal connected to the communication network terminal, a second driver terminal connected to ground, and a driver control terminal connected to the input terminal; wherein the driver device is arranged to connect the communication network terminal to ground in response to a transition from a low to a high voltage driver control signal state of a driver control signal received at the driver control terminal. And the signalling circuit comprises a feedback circuit connected to the first driver terminal and the driver control terminal and comprising a capacitive device; and a pull-down device arranged to connect the driver control terminal to ground after a predefined delay after a transition of the transmit signal from a low to a high voltage transmit signal state.
Public/Granted literature
- US20140169495A1 SIGNALLING CIRCUIT, PROCESSING DEVICE AND SAFETY CRITICAL SYSTEM Public/Granted day:2014-06-19
Information query
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