Abstract: Methods of changing a data rate of communication over an interface between a data transmitter and a data receiver are disclosed, wherein the data transmitter is associated with a first processor and transmitting data over the interface and the data receiver is associated with a second processor. The data transmitter transmits and the data receiver receives data over the interface at a first data rate. At the first processor, it is determined to change the first data rate to a second data rate. The data transmitter transmits and the data receiver receives a request to change the first data rate to the second data rate. In response thereto, a response message is transmitted by the data receiver and received by the data transmitter. When the response message comprises an acknowledgement to change the first data rate to the second data rate, the data transmitter transmits and the data receiver receives data over the interface at the second data rate.

Abstract: A closure is for a container, for example a beverage container. In some examples the closure comprises an outer portion connectable to an opening of the container, an axially actuatable inner portion having a sealing member for restricting fluid flow through the closure with the inner portion in a first position and allowing fluid flow through the closure with the inner portion in a second position axially displaced relative to the outer portion, and an annular membrane connecting the outer and inner portions and configured to provide a returning force to resiliently bias the inner portion towards the first position. A beverage container comprises a closure. A method is for operating a closure.

Abstract: Methods of changing a data rate of communication over an interface between a data transmitter and a data receiver are disclosed, wherein the data transmitter is associated with a first processor and transmitting data over the interface and the data receiver is associated with a second processor. The data transmitter transmits and the data receiver receives data over the interface at a first data rate. At the first processor, it is determined to change the first data rate to a second data rate. The data transmitter transmits and the data receiver receives a request to change the first data rate to the second data rate. In response thereto, a response message is transmitted by the data receiver and received by the data transmitter. When the response message comprises an acknowledgement to change the first data rate to the second data rate, the data transmitter transmits and the data receiver receives data over the interface at the second data rate.

Abstract: A closure is for a container, for example a beverage container. In some examples the closure comprises an outer portion connectable to an opening of the container, an axially actuatable inner portion having a sealing member for restricting fluid flow through the closure with the inner portion in a first position and allowing fluid flow through the closure with the inner portion in a second position axially displaced relative to the outer portion, and an annular membrane connecting the outer and inner portions and configured to provide a returning force to resiliently bias the inner portion towards the first position. A beverage container comprises a closure. A method is for operating a closure.