Can bus interconnection circuit
AssigneeHill-Rom Services, Inc.
InventorMaxime E. Scolan
Life of this patent
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Abstract
A circuit for interconnecting a first controller area network (CAN) bus with a second CAN bus includes a first CAN transceiver, a second CAN transceiver, and a pair of transistors and six resistors electrically interconnecting the first and second CAN transceivers. The first CAN bus is included in a first device, such a bed to support a person or occupant, and the second CAN bus is included in a second device, such as a mattress supported by the bed. The circuit for interconnecting the first and second CAN busses is situated in an interior region of the mattress.
Claims20
A circuit for interconnecting a first controller area network (CAN) bus with a second CAN bus, the circuit comprising
- a first CAN transceiver operable in a dominant state and a recessive state,
- a second CAN transceiver also operable in a dominant state and a recessive state, and
- a pair of transistors interconnecting the first and second CAN transceivers, the pair of transistors operating to prevent the first and second CAN transceivers from both operating in the respective dominant state simultaneously.
A circuit for interconnecting a first controller area network (CAN) bus with a second CAN bus, the circuit comprising
- a first CAN transceiver,
- a second CAN transceiver, and
- connection circuitry including a pair of transistors and a plurality of resistors electrically interconnecting the first and second CAN transceivers, wherein the connection circuitry is devoid of any diodes.
A circuit for interconnecting a first controller area network (CAN) bus with a second CAN bus, the circuit comprising
- a first CAN transceiver,
- a second CAN transceiver, and
- a pair of transistors and six resistors electrically interconnecting the first and second CAN transceivers.
Dependencies are inferred from the claim text.