140 results about "PHY" patented technology

A PHY, an abbreviation for "physical layer", is an electronic circuit, usually implemented as a chip, required to implement physical layer functions of the OSI model. A PHY connects a link layer device (often called MAC as an acronym for medium access control) to a physical medium such as an optical fiber or copper cable. A PHY device typically includes both Physical Coding Sublayer (PCS) and Physical Medium Dependent (PMD) layer functionality.