公开(公告)号：US20090080413A1

公开(公告)日：2009-03-26

申请号：US12277981

申请日：2008-11-25

Applicant: Siavash Fallahi ,  Lin Able Chu

Inventor： Siavash Fallahi ,  Lin Able Chu

IPC: H04L12/66

CPC classification number: H03H7/06 ,  H03H7/075 ,  H03H7/1758 ,  H03H7/38 ,  H03H7/425 ,  H04M1/2535 ,  Y10S379/90 ,  Y10T307/832

Abstract: An Internet Protocol (IP) telephone has a constant impedance filter that is capable of being continuously attached to the physical layer of a computer chip in the IP telephone. The constant impedance filter is located outside the physical layer and is connected to a relay on the physical layer. The relay is configured using native FET devices, which are normally conductive without a supply voltage. Therefore, the relay is capable of operating during the discovery mode of IP telephone operation, where no power is applied to the substrate. Rectifier circuits rectify an incoming signal during discovery mode, and apply the rectified signal to the gate of the relay to improve conductivity of the relay. This allows for faster detection of the IP telephone during discovery mode. During normal operation mode, voltage is applied to the physical layer, and the relay is opened by grounding the native devices. Also, during the normal operation mode, any signal coming from the constant impedance filter is terminated in a switchable termination resistor that is also disposed on the physical layer.

Abstract translation: 互联网协议（IP）电话具有恒定阻抗滤波器，其能够连续地附着到IP电话中的计算机芯片的物理层。 恒定阻抗滤波器位于物理层之外，并连接到物理层上的继电器。 继电器使用天然FET器件进行配置，该器件通常在没有电源电压的情况下导通。 因此，继电器能够在IP电话操作的发现模式下操作，其中没有电力施加到基板。 整流电路在发现模式下对输入信号进行整流，并将整流信号施加到继电器的门，以提高继电器的导通性。 这允许在发现模式期间更快地检测IP电话。 在正常工作模式下，电压施加到物理层，继电器通过对本机进行接地而打开。 此外，在正常操作模式期间，来自恒定阻抗滤波器的任何信号终止于也设置在物理层上的可切换终端电阻器中。

公开(公告)号：US08280035B2

公开(公告)日：2012-10-02

申请号：US12277981

申请日：2008-11-25

Applicant: Siavash Fallahi ,  Lin Able Chu

Inventor： Siavash Fallahi ,  Lin Able Chu

IPC: H03K17/04 ,  H04M9/00

CPC classification number: H03H7/06 ,  H03H7/075 ,  H03H7/1758 ,  H03H7/38 ,  H03H7/425 ,  H04M1/2535 ,  Y10S379/90 ,  Y10T307/832

Abstract: An Internet Protocol (IP) telephone has a constant impedance filter that is capable of being continuously attached to the physical layer of a computer chip in the IP telephone. The constant impedance filter is located outside the physical layer and is connected to a relay on the physical layer. The relay is configured using native FET devices, which are normally conductive without a supply voltage. Therefore, the relay is capable of operating during the discovery mode of IP telephone operation, where no power is applied to the substrate. Rectifier circuits rectify an incoming signal during discovery mode, and apply the rectified signal to the gate of the relay to improve conductivity of the relay. This allows for faster detection of the IP telephone during discovery mode. During normal operation mode, voltage is applied to the physical layer, and the relay is opened by grounding the native devices. Also, during the normal operation mode, any signal coming from the constant impedance filter is terminated in a switchable termination resistor that is also disposed on the physical layer.

Abstract translation: 互联网协议（IP）电话具有恒定阻抗滤波器，其能够连续地附着到IP电话中的计算机芯片的物理层。 恒定阻抗滤波器位于物理层外部，并连接到物理层上的继电器。 继电器使用天然FET器件进行配置，该器件通常在没有电源电压的情况下导通。 因此，继电器能够在IP电话操作的发现模式下操作，其中没有电力施加到基板。 整流电路在发现模式下对输入信号进行整流，并将整流信号施加到继电器的门，以提高继电器的导通性。 这允许在发现模式期间更快地检测IP电话。 在正常工作模式下，电压施加到物理层，继电器通过对本机进行接地而打开。 此外，在正常操作模式期间，来自恒定阻抗滤波器的任何信号终止于也设置在物理层上的可切换终端电阻器中。

公开(公告)号：US07505580B2

公开(公告)日：2009-03-17

申请号：US10028781

申请日：2001-12-28

Applicant: Siavash Fallahi ,  Lin Able Chu

Inventor： Siavash Fallahi ,  Lin Able Chu

IPC: H04M7/04

CPC classification number: H03H7/06 ,  H03H7/075 ,  H03H7/1758 ,  H03H7/38 ,  H03H7/425 ,  H04M1/2535 ,  Y10S379/90 ,  Y10T307/832

Abstract: An Internet Protocol (IP) telephone has a constant impedance filter that is capable of being continuously attached to the physical layer of a computer chip in the IP telephone. The constant impedance filter is located outside the physical layer and is connected to a relay on the physical layer. The relay is configured using native FET devices, which are normally conductive without a supply voltage. Therefore, the relay is capable of operating during the discovery mode of IP telephone operation, where no power is applied to the substrate. Rectifier circuits rectify an incoming signal during discovery mode, and apply the rectified signal to the gate of the relay to improve conductivity of the relay. This allows for faster detection of the IP telephone during discovery mode. During normal operation mode, voltage is applied to the physical layer, and the relay is opened by grounding the native devices. Also, during the normal operation mode, any signal coming from the constant impedance filter is terminated in a switchable termination resistor that is also disposed on the physical layer.