Abstract: Disclosed is a position controller for a tilting head in a machining center. The position controller includes an offset attachment having a body combined to the tilting head and a spherical contact secured to the body, an offset detector built in the machining center such that the offset detector move out into a process area of the machining center and automatically detects a tool offset from a contact point with the spherical contact, a storing unit individually storing first and second tool offsets by respective rotation positions of the tilting head, and an operator generating a transform offset of the first tool offset by a rotational transform and a center error vector from the transform offset and the second tool offset. Accordingly, the center error of the tilting head is automatically detected and corrected in the machining center.

Abstract: Disclosed is a position controller for a tilting head in a machining center. The position controller includes an offset attachment having a body combined to the tilting head and a spherical contact secured to the body, an offset detector built in the machining center such that the offset detector move out into a process area of the machining center and automatically detects a tool offset from a contact point with the spherical contact, a storing unit individually storing first and second tool offsets by respective rotation positions of the tilting head, and an operator generating a transform offset of the first tool offset by a rotational transform and a center error vector from the transform offset and the second tool offset. Accordingly, the center error of the tilting head is automatically detected and corrected in the machining center.

Abstract: A method and an apparatus for communication between an Automatic Configuration Server (ACS) and a Customer Premise Equipment (CPE) over an Internet-based network are provided. A CPE determines in a power standby state whether an inform request message transmission period is received. If the inform request message transmission period is received, the CPE transitions from the power standby state to an active state and transmits an inform request message to an ACS. The CPE receives an inform response message from the ACS in response to the inform request message, and upon receiving the inform response message, transitions from the active state to the power standby state.

Abstract: A method and an apparatus for communication between an Automatic Configuration Server (ACS) and a Customer Premise Equipment (CPE) over an Internet-based network are provided. A CPE determines in a power standby state whether an inform request message transmission period is received. If the inform request message transmission period is received, the CPE transitions from the power standby state to an active state and transmits an inform request message to an ACS. The CPE receives an inform response message from the ACS in response to the inform request message, and upon receiving the inform response message, transitions from the active state to the power standby state.