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    • 3. 发明授权
    • Bandgap reference circuit with low operating voltage
    • 带隙参考电路,工作电压低
    • US08149047B2
    • 2012-04-03
    • US12051989
    • 2008-03-20
    • Hung-Chieh TsaiYu-Hsin Lin
    • Hung-Chieh TsaiYu-Hsin Lin
    • G05F3/02
    • H03F3/45183G05F3/30H03F3/345H03F2200/456
    • A bandgap reference circuit comprising a current mirror, an operational amplifier, first and second BJT transistors is disclosed. The current mirror comprises a first input terminal, a second input terminal and at least one output terminal. The operational amplifier is coupled to the current mirror, wherein a first transistor and a second transistor respectively coupled to the first and the second input terminals have a zero or near zero threshold voltage. The first and second BJT transistors are coupled to two input terminals of the operational amplifier respectively, wherein at least one of the first and second BJT transistors is coupled to the output terminal of the current mirror through a conductive path.
    • 公开了一种带隙参考电路,其包括电流镜,运算放大器,第一和第二BJT晶体管。 电流镜包括第一输入端,第二输入端和至少一个输出端。 运算放大器耦合到电流镜,其中分别耦合到第一和第二输入端的第一晶体管和第二晶体管具有零或接近零的阈值电压。 第一和第二BJT晶体管分别耦合到运算放大器的两个输入端,其中第一和第二BJT晶体管中的至少一个通过导电路径耦合到电流镜的输出端。
    • 4. 发明授权
    • System and method for controlling connections between a wireless router and unlicensed mobile access capable mobile phones
    • 用于控制无线路由器和未许可移动接入能力的移动电话之间的连接的系统和方法
    • US08050681B2
    • 2011-11-01
    • US12417601
    • 2009-04-02
    • Han-Tzung LinYu-Hsin Lin
    • Han-Tzung LinYu-Hsin Lin
    • H04W36/00
    • H04L29/12028H04L61/103H04W8/26H04W84/12
    • A system for controlling connections between a wireless router and unlicensed mobile access capable mobile phones is provided. The system acquires and stores a media access control address and an Internet protocol address of each mobile phone in an address list. The system periodically checks whether each Internet protocol address recorded in an address resolution protocol cache table of the wireless router matches a corresponding media access control address recorded in the cache table. If the Internet protocol address does not match the corresponding media access control address in the cache table, the system further looks up a media access control address corresponding to the Internet protocol address, and sends an address resolution protocol unicast request to a mobile phone having the media access control address.
    • 提供了一种用于控制无线路由器和未许可移动接入移动接入移动电话之间的连接的系统。 系统在地址列表中获取并存储每个移动电话的媒体访问控制地址和互联网协议地址。 系统定期检查记录在无线路由器的地址解析协议高速缓存表中的每个因特网协议地址是否与记录在高速缓存表中的对应的媒体访问控制地址相匹配。 如果互联网协议地址与缓存表中的相应媒体访问控制地址不匹配,则系统进一步查找对应于因特网协议地址的媒体访问控制地址,并向具有该协议地址的移动电话发送地址解析协议单播请求 媒体访问控制地址。
    • 5. 发明授权
    • Low-noise DC offset calibration circuit and related receiver stage
    • 低噪声直流偏移校准电路及相关接收器级
    • US07956680B2
    • 2011-06-07
    • US12767812
    • 2010-04-27
    • Chi-Lun LoYu-Hsin Lin
    • Chi-Lun LoYu-Hsin Lin
    • H03F1/02
    • H04B1/30
    • A DC offset calibration circuit has a first resistor, a first switch, a second resistor, and a second switch. The first resistor is coupled to a first supply voltage. The first switch is coupled to the first resistor, to a first input of an amplifier, and to a first input resistor. A second end of the first input resistor is not coupled to the first supply voltage. The second resistor is coupled to a second supply voltage. The second switch is coupled to the second resistor, to a second input of the amplifier, and to a first end of a second input resistor. A second end of the second input resistor is not coupled to the second supply voltage.
    • DC偏移校准电路具有第一电阻器,第一开关,第二电阻器和第二开关。 第一电阻器耦合到第一电源电压。 第一开关耦合到第一电阻器,耦合到放大器的第一输入端和第一输入电阻器。 第一输入电阻器的第二端不耦合到第一电源电压。 第二电阻耦合到第二电源电压。 第二开关耦合到第二电阻器,耦合到放大器的第二输入端和第二输入电阻器的第一端。 第二输入电阻器的第二端不耦合到第二电源电压。
    • 7. 发明申请
    • Low-noise DC Offset Calibration Circuit and Related Receiver Stage
    • 低噪声直流偏移校准电路和相关接收器级
    • US20100201423A1
    • 2010-08-12
    • US12767812
    • 2010-04-27
    • Chi-Lun LoYu-Hsin Lin
    • Chi-Lun LoYu-Hsin Lin
    • H03L5/00
    • H04B1/30
    • A DC offset calibration circuit has a first resistor, a first switch, a second resistor, and a second switch. The first resistor is coupled to a first supply voltage. The first switch is coupled to the first resistor, to a first input of an amplifier, and to a first input resistor. A second end of the first input resistor is not coupled to the first supply voltage. The second resistor is coupled to a second supply voltage. The second switch is coupled to the second resistor, to a second input of the amplifier, and to a first end of a second input resistor. A second end of the second input resistor is not coupled to the second supply voltage.
    • DC偏移校准电路具有第一电阻器,第一开关,第二电阻器和第二开关。 第一电阻器耦合到第一电源电压。 第一开关耦合到第一电阻器,耦合到放大器的第一输入端和第一输入电阻器。 第一输入电阻器的第二端不耦合到第一电源电压。 第二电阻耦合到第二电源电压。 第二开关耦合到第二电阻器,耦合到放大器的第二输入端和第二输入电阻器的第一端。 第二输入电阻器的第二端不耦合到第二电源电压。
    • 8. 发明授权
    • Cascode amplifier and method for controlling current of cascode amplifier
    • 串级放大器和共源共栅放大器电流控制方法
    • US07737790B1
    • 2010-06-15
    • US12421615
    • 2009-04-09
    • Yen-Horng ChenYu-Hsin Lin
    • Yen-Horng ChenYu-Hsin Lin
    • H03F3/04
    • H03F1/223
    • A cascode amplifier includes a first transistor, a second transistor, a third transistor, a fourth transistor and a bias circuit. Each of the transistors has a gate electrode, a first electrode and a second electrode, a first electrode of the first transistor is coupled to a second electrode of the second transistor, a first electrode of the third transistor is coupled to a second electrode of the fourth transistor, and gate electrodes of the third and the fourth transistors are coupled to gate electrodes of the first and the second transistors, respectively. The bias circuit is coupled to the first electrode of the fourth transistor, and is used for biasing a voltage level at the first electrode of the fourth transistor to make the second and the fourth transistors operate in a same region.
    • 级联放大器包括第一晶体管,第二晶体管,第三晶体管,第四晶体管和偏置电路。 每个晶体管具有栅电极,第一电极和第二电极,第一晶体管的第一电极耦合到第二晶体管的第二电极,第三晶体管的第一电极耦合到第二晶体管的第二电极 第四晶体管和第三和第四晶体管的栅电极分别耦合到第一和第二晶体管的栅电极。 偏置电路耦合到第四晶体管的第一电极,并且用于偏置第四晶体管的第一电极处的电压电平,以使第二和第四晶体管在相同的区域中工作。
    • 9. 发明申请
    • WIRELESS ACCESS DEVICE AND PAIRING METHOD
    • 无线接入设备及配对方法
    • US20100112979A1
    • 2010-05-06
    • US12429173
    • 2009-04-23
    • Chien-Hua ChenYu-Hsin Lin
    • Chien-Hua ChenYu-Hsin Lin
    • H04M3/16
    • H04L63/0428H04W12/003H04W12/00504H04W12/02H04W84/02H04W92/10
    • A wireless access device for pairing with a wireless communication device by a plurality of signal lamps. The wireless access device stores a lamp-code mapping table including a plurality of lamp states and corresponding pairing codes to the plurality of the lamp states, turns off an encryption mechanism of the wireless access device, randomly selects one lamp state from the lamp-code mapping table, controls states of the plurality of signal lamps according the selected lamp state, receives a pairing request from the wireless communication device, obtains a pairing code from the pairing request, pairs with the wireless communication device when the obtained pairing code matches the pairing code corresponding to the selected lamp state, and rejects pairing with the wireless communication device if the obtained pairing code does not match the pairing code corresponding to the selected lamp state. A pairing method is also provided.
    • 一种用于通过多个信号灯与无线通信设备进行配对的无线接入设备。 无线接入装置将包括多个灯状态的灯代码映射表和对应的配对码存储到多个灯状态,关闭无线接入装置的加密机制,从灯码随机选择一个灯状态 映射表,根据所选择的灯状态控制多个信号灯的状态,从无线通信设备接收配对请求,从配对请求获得配对码,当获得的配对码与配对码匹配时,与无线通信设备配对 如果所获得的配对码与对应于所选择的灯状态的配对码不匹配,则拒绝与无线通信设备的配对。 还提供了配对方法。