# US 11,442,518 B2 · Extended system, server host and operation method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,442,518 B2 - Document ID: US11442518B2 - Status: Granted - Kind: B2 - Application number: 16/516,661 - Filed: 2019-07-19 - Published: 2020-10-22 - Granted: 2022-09-13 - Earliest claimed: 2019-04-22 - Assignees: Wistron Corporation - Applicants: Wistron Corp. - Inventors: Zh-Wei Zhang; Syu-Siang Lee - Web page: https://patentgrep.com/patent/US11442518B2 ## CPC - G06F 1/266: {Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips} - G06F 1/26: Power supply means, e.g. regulation thereof (for memories G11C) - Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract An extended system includes at least one peripheral component interconnect express (PCIE) connector and a control device. The PCIE connector is suitable for connecting to at least one server device. The control device is connected to PCIE connector. According to at least one working voltage generated by the server device, the control device turns on the extended system and ignores a power control signal generated by the extended system, or the control unit generates at least one wakeup signal according to the power control signal generated by the extended system and transmits the wakeup signal to the server device, so that the server device may turn on and generate a working voltage. ## Claims ### Claim 1 An extended system, comprising: at least one peripheral component interconnect express (PCIE) connector, suitable to connect to at least one server device; and a control device, connected to the at least one PCIE connector; wherein the control device is configured to: detect whether a working voltage generated by the at least one server device is received, in response to the working voltage being received, turn on the extended system and ignore a power control signal generated by the extended system, and in response to the working voltage not being received, generate at least one wakeup signal according to the power control signal generated by the extended system, and transmit the at least one wakeup signal to the at least one server device, so that the at least one server device is turned on and generates the at least one working voltage. ### Claim 2 (depends on 1) The extended system as claimed in claim 1, wherein the control device determines that the PCIE connector is connected to the at least one server device in response to receiving at least one standby voltage of the at least one server device. ### Claim 3 (depends on 2) The extended system as claimed in claim 2, wherein the control device determines that the PCIE connector is not connected to the at least one server device in response to not receiving the at least one standby voltage, and the control device further turns on or turns off the extended system according to the power control signal generated by the extended system. ### Claim 4 (depends on 1) The extended system as claimed in claim 1, wherein the at least one PCIE connector comprises a plurality of PCIE connectors, the at least one server device comprises a plurality of server devices, and the PCIE connectors are connected to the corresponding server devices, wherein the control device turns on the extended system and ignores the power control signal generated by the extended system according to one of the working voltages generated by the server device; wherein the control device generates the remaining wakeup signals to the remaining server devices according to the one of the working voltages, so that the remaining server devices are turned on; or wherein the control device generates the wakeup signals according to the power control signal generated by the extended system, and transmits the wakeup signals to the server devices, so that the server devices are turned on and generate the working voltage. ### Claim 5 (depends on 4) The extended system as claimed in claim 4, wherein the control device determines whether the working voltages exist in response to determining that the control device is already turned on; wherein the control device turns off the extended system in response to determining that the working voltages do not exist; wherein the control device determines whether the remaining server devices have turning-on records in response to one of the working voltages existing; wherein the control device does not operate in response to determining that the remaining server devices have turning-on records; wherein the control device generates the remaining wakeup signals to the remaining server devices in response to determining that the remaining server devices do not have turning-on records, so that the remaining server devices are turned on. ### Claim 6 (depends on 4) The extended system as claimed in claim 4, wherein the control device further determines that the PCIE connector is connected to the server devices in response to receiving a plurality of standby voltages of the server devices. ### Claim 7 (depends on 6) The extended system as claimed in claim 6, wherein the control device determines that the PCIE connector is not connected to the server devices in response to not receiving the standby voltages, and the control device further turns on or turns off the extended system according to the power control signal generated by the extended system. ### Claim 8 (depends on 1) The extended system as claimed in claim 1, further comprising: a signal generation device, connected to the control device, and configured to generate the power control signal. ### Claim 9 (depends on 1) The extended system as claimed in claim 1, wherein the control device is a complex programmable logic device. ### Claim 10 A server host, comprising: at least one server, comprising: a first PCIE connector; a power supply device, connected to the first PCIE connector, and configured to provide a standby voltage and a working voltage; and a processing device, connected to the first PCIE connector and the power supply device, and configured to control the power supply device to provide the standby voltage or the working voltage according to a control signal or a wakeup signal; and an extended system, comprising: at least one second PCIE connector, suitable to connect to the first PCIE connector of the at least one server device; and a control device, connected to the at least one second PCIE connector; wherein the control device is configured to: detect whether a working voltage generated by the at least one server device is received, in response to the working voltage being received, turn on the extended system and ignore a power control signal generated by the extended system according to the working voltage generated by the power supply device, and in response to the working voltage not being received, generate the wakeup signal according to the power control signal generated by the extended system, and transmit the wakeup signal to the processing device, so that the at least one server device is turned on and the power supply device generates the working voltage. ### Claim 11 An operation method of a server host, comprising: detecting, by a control device, whether at least one working voltage generated by at least one server device is received; turning on an extended system and ignoring a power control signal from the extended system, by the control device, in response to the at least one working voltage being received; generating, by the control device, at least one wakeup signal according to the power control signal generated by the extended system in response to the at least one working voltage not being received; and transmitting the at least one wakeup signal to the at least one server device, so that the at least one server device is turned on and generates the at least one working voltage; wherein the at least one server device and the extended system are connected through a PCIE connector. ### Claim 12 (depends on 11) The operation method of the server host as claimed in claim 11, further comprising: detecting, by the control device, whether at least one standby voltage generated by the at least one server device is received; and determining that the extended system is connected to the at least one server device in response to the at least one standby voltage being received. ### Claim 13 (depends on 12) The operation method of the server host as claimed in claim 12, further comprising: determining that the extended system is not connected to the at least one server device in response to the at least one standby voltage not being received; and turning on or turning off, by the control device, the extended system according to the power control signal generated by the extended system. ### Claim 14 (depends on 11) The operation method of the server host as claimed in claim 11, wherein the at least one server device comprises a plurality of server devices, and the operation method further comprises: turning on the extended system and ignoring the power control signal from the extended system, by the control device, in response to one of the working voltages being received, and generating the wakeup signals to the remaining server devices according to the one of the working voltages, so that the remaining server devices are turned on. ### Claim 15 (depends on 14) The operation method of the server host as claimed in claim 14, further comprising: determining whether the control device is already turned on; determining, by the control device, whether the working voltages exist in response to determining that the control device is already turned on; turning off, by the control device, the extended system in response to determining that the working voltages do not exist; determining whether the remaining server devices have turning-on records in response to determining that one of the working voltages exists; the control device not operating in response to determining that the remaining server devices have turning-on records; and generating, by the control device, the wakeup signals to the remaining server devices in response to determining that the remaining server devices do not have turning-on records, so that the remaining server devices are turned on. ### Claim 16 (depends on 11) The operation method of the server host as claimed in claim 11, further comprising: detecting, by the control device, whether a plurality of standby voltages generated by the server devices are received; and determining that the extended system is connected to the server devices in response to the standby voltages being received. ### Claim 17 (depends on 16) The operation method of the server host as claimed in claim 16, further comprising: determining that the extended system is not connected to the server devices in response to the standby voltages not being received; turning on or turning off, by the control device, the extended system according to the power control signal generated by the extended system. ### Claim 18 (depends on 11) The operation method of the server host as claimed in claim 11, wherein the control device is a complex programmable logic device.