Patent ID: 7769917

Claim:
An auto-detect interface for automatically detecting a connection between at least one DTE(Data Terminal Equipment)/DCE (Data Circuit Terminating Equipment) host device and another DTE/DCE comprising: auto-detect circuitry, wherein said auto-detect circuitry is situated proximate to said at least one DTE/DCE host device, and contains an electrical connection for connecting said auto-detect circuitry to at least one port of said at least one DTE/DCE host device; a logic-based structure contained within said auto-detect circuitry, said logic-based structure providing for generating, without needing to monitor any data transmission detection between said at least one DTE/DCE host device and said another DTE/DCE device, an Auto Detection Output Signal upon the reception by said auto-detect circuitry of at least one Detect Signal transmitted from a serial interface circuit within said at least one host DTE/DCE device, said Auto Detection Output Signal being generated by monitoring a power ground signal level change represented by said Detect Signal; and wherein said auto-detect circuitry is further configured so as to provide for data exchange between said at least one DTE/DCE host device and said another DTE/DCE device after said generating of said Auto Detection Output Signal.