Power reduction system for an apparatus for high data rate signal transfer using a communication protocol

摘要

A data Interface for transferring digital data between a host and a client over a communication path using packet structures linked together to form a communication protocol for communicating a pre-selected set of digital control and presentation data. The signal protocol is used by link controllers configured to generate, transmit, and receive packets forming the communications protocol, and to form digital data into one or more types of data packets, with at least one residing in the host device and being coupled to the client through the communications path. The interface provides a cost-effective, low power, bi-directional, high-speed data transfer mechanism over a short-range “serial” type data link, which lends itself to implementation with miniature connectors and thin flexible cables which are especially useful in connecting display elements such as wearable micro-displays to portable computers and wireless communication devices.

主权项

1. A method executed on hardware for a power reduction in a digital data interface communication data link, the method comprising:
sending a link shut down packet from a host device to a client device; disabling a data driver to a high impedance state by the host device to place the digital data interface communication data link in hibernation; providing a logic one to a data line to drive the data line to a logic one state; toggling a strobe for a first predetermined period of time; driving the data line to a zero state and toggling the strobe for a second predetermined period of time to wake up the digital data interface communication data link; and transmitting a sub-frame header packet.