Device and method for selectively hiding bus oscillations during data reception via a bus system
AssigneeRobert Bosch GmbH
InventorsFlorian Hartwich, Steffen Walker
Life of this patent
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Abstract
A device and a method for selectively hiding bus oscillations upon data reception via a bus system. The device encompasses a monitoring element for monitoring a difference of the bus signal on a bus line of the bus system, and a masking element for masking oscillations of the bus signal for a predetermined masking time if the monitoring result of the monitoring element indicates that oscillations of the bus signal following a transition of the bus signal from a dominant to a recessive state exceed at least one predetermined threshold value.
Claims11
-10. (canceled)
A device for selectively hiding bus oscillations upon data reception via a bus system, comprising:
- a monitoring element for monitoring a difference of the bus signal on a bus line of the bus system;
- and
- a masking element for masking oscillations of the bus signal for a predetermined masking time if the monitoring result of the monitoring element indicates that oscillations of a difference of the bus signal following a transition of the bus signal from a dominant to a recessive state exceed at least one predetermined threshold value.
A transmit/receive module for a subscriber station for a bus system, the transmit/receive module having a device for selectively hiding bus oscillations upon data reception via a bus system, the device comprising:
- a monitoring element for monitoring a difference of the bus signal on a bus line of the bus system;
- and
- a masking element for masking oscillations of the bus signal for a predetermined masking time if the monitoring result of the monitoring element indicates that oscillations of a difference of the bus signal following a transition of the bus signal from a dominant to a recessive state exceed at least one predetermined threshold value.
A subscriber station for a bus system, comprising:
- a CAN controller;
- a transmit/receive module for a bus system, the transmit/receive module having a device for selectively hiding bus oscillations upon data reception via the bus system, the device including a monitoring element for monitoring a difference of the bus signal on a bus line of the bus system, and a masking element for masking oscillations of the bus signal for a predetermined masking time if the monitoring result of the monitoring element indicates that oscillations of a difference of the bus signal following a transition of the bus signal from a dominant to a recessive state exceed at least one predetermined threshold value;
- and
- a system ASIC (for accommodating the transmit/receive module’
- wherein the device is connected between an output of a reception comparator of the transmit/receive module and an input of a signal driver for a received signal of the CAN controller.
A bus system, comprising:
- a bus line;
- and
- at least two subscriber stations that are interconnected by way of the bus line for communication;
- wherein at least one of the subscriber stations includes a device for selectively hiding bus oscillations upon data reception via the bus system, the device including a monitoring element for monitoring a difference of the bus signal on the bus line of the bus system, and a masking element for masking oscillations of the bus signal for a predetermined masking time if the monitoring result of the monitoring element indicates that oscillations of a difference of the bus signal following a transition of the bus signal from a dominant to a recessive state exceed at least one predetermined threshold value.
A method for selectively hiding bus oscillations upon data reception via a bus system, comprising:
- monitoring, with a monitoring element, a difference of a bus signal on a bus line of the bus system;
- and
- masking, with a masking element, oscillations of the bus signal for a predetermined masking time if the monitoring result of the monitoring element indicates that oscillations of the bus signal after a transition of the bus signal from a dominant to a recessive state exceed at least one predetermined threshold value.
Dependencies are inferred from the claim text.