US Patent Application 18334394. Universal serial bus time synchronization simplified abstract

Universal serial bus time synchronization

Inventors

John H. Kelm of Belmont CA (US)

Alexei E. Kosut of Campbell CA (US)

Yi Chun Chen of San Jose CA (US)

Universal serial bus time synchronization - A simplified explanation of the abstract

• This abstract for appeared for patent application number 18334394 Titled 'Universal serial bus time synchronization'

Simplified Explanation

This abstract describes an apparatus that includes various components, a distributed timebase circuit, an interface, and a Time Synchronization Circuit (TSC). The purpose of this apparatus is to provide a consistent time measurement across different components by synchronizing their local timebases to a global timebase.

The interface of the apparatus is designed to be connected to one or more devices, and any transmissions on the interface are divided into multiple frames. The time on the interface is determined based on a frame number that identifies a specific frame.

The Time Synchronization Circuit (TSC) in the apparatus is responsible for capturing two timestamps simultaneously. The first timestamp is based on the frame number, which represents a specific point in time on the interface. The second timestamp is based on the local timebase, which corresponds to the same point in time. These two timestamps are used to correlate the time on the interface with the consistent time measurement provided by the global timebase.

Original Abstract Submitted

An apparatus includes components, a distributed timebase circuit, an interface and a Time Synchronization Circuit (TSC). The timebase circuit is configured to provide local timebases in physical proximity to the components, and synchronize the local timebases to a global timebase so as to provide a consistent time measurement. The interface is configured to be coupled to one or more devices. Transmissions on the interface are logically divided into a plurality of frames. Time on the interface is defined based on a frame number identifying a particular frame. The TSC is configured to capture a first timestamp based on the frame number corresponding to a point in time on the interface, and to concurrently capture a second timestamp based on a local timebase corresponding to the point in time, wherein the first timestamp and the second timestamp correlate time on the interface to the consistent time measurement.