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    • 4. 发明授权
    • Focal plane infrared readout circuit with automatic background suppression
    • 焦平面红外读出电路,具有自动背景抑制功能
    • US06373050B1
    • 2002-04-16
    • US09414976
    • 1999-10-07
    • Bedabrata PainGuang YangChao SunTimothy J. ShawChris J. Wrigley
    • Bedabrata PainGuang YangChao SunTimothy J. ShawChris J. Wrigley
    • G01V504
    • H04N5/361G01J1/16G01J1/46G01J3/2803H04N5/33
    • A circuit for reading out a signal from an infrared detector includes a current-mode background-signal subtracting circuit having a current memory which can be enabled to sample and store a dark level signal from the infrared detector during a calibration phase. The signal stored by the current memory is subtracted from a signal received from the infrared detector during an imaging phase. The circuit also includes a buffered direct injection input circuit and a differential voltage readout section. By performing most of the background signal estimation and subtraction in a current mode, a low gain can be provided by the buffered direct injection input circuit to keep the gain of the background signal relatively small, while a higher gain is provided by the differential voltage readout circuit. An array of such readout circuits can be used in an imager having an array of infrared detectors. The readout circuits can provide a high effective handling capacity.
    • 用于从红外检测器读出信号的电路包括具有当前存储器的电流模式背景信号减法电路,其能够在校准阶段期间从红外检测器采样和存储暗电平信号。 在成像阶段,从红外检测器接收到的信号中减去当前存储器存储的信号。 电路还包括缓冲直接注入输入电路和差分电压读出部分。 通过在当前模式下执行大部分背景信号估计和减法,缓冲直接注入输入电路可以提供低增益,以保持背景信号的增益相对较小,而差分电压读出提供更高的增益 电路。 这种读出电路的阵列可用于具有红外检测器阵列的成像器中。 读出电路可以提供高效的处理能力。
    • 7. 发明申请
    • GROUNDING METHOD ADAPTED FOR POWER SUPPLY
    • 适用于电源的接地方法
    • US20130014385A1
    • 2013-01-17
    • US13545985
    • 2012-07-11
    • Ming XuChao Sun
    • Ming XuChao Sun
    • H01R43/00
    • H02M1/44Y10T29/49117
    • A grounding method adapted for a power supply (for example, an adapter power supply, a three-phase AC-to-DC power supply, a DC-to-DC power supply, . . . , etc., but not limited thereto) is provided, and which includes: (a) providing a circuit body corresponding to the power supply, where the circuit body has an input part and an output part; (b) disposing the circuit body in a shielding layer; and (c) making at least one of the input part and the output part to be coupled with the shielding layer through at least one capacitor. In this case, the present invention can effectively solve the problem of common-mode interferences in the power supply.
    • 适用于电源的接地方法(例如,适配器电源,三相AC-DC电源,DC-DC电源等,但不限于此) 并且其包括:(a)提供与电源相对应的电路体,其中电路主体具有输入部分和输出部分; (b)将电路体设置在屏蔽层中; 和(c)使输入部分和输出部分中的至少一个通过至少一个电容器与屏蔽层耦合。 在这种情况下,本发明能够有效地解决电源中的共模干扰的问题。
    • 8. 发明申请
    • SYSTEM, PROTECTION METHOD AND SERVER FOR IMPLEMENTING THE VIRTUAL CHANNEL SERVICE
    • 系统,保护方法和实施虚拟通道服务的服务器
    • US20110093883A1
    • 2011-04-21
    • US12346689
    • 2008-12-30
    • Chao Sun
    • Chao Sun
    • H04N7/167H04L9/06
    • H04N7/17318H04N7/1675H04N21/2221H04N21/2347H04N21/23473H04N21/26606H04N21/26613H04N21/2668H04N21/47202H04N21/47208H04N21/63345H04N21/6405
    • A system for implementing the virtual channel service generates an content key associated with each of the video on-demand (VOD) program contents for the each VOD program content multicast on a virtual channel, encrypts the VOD program contents by using the content key and multicasts the encrypted VOD program content on the virtual channel; generates a channel key for the virtual channel that multicasts the VOD program content, encrypts the content key and generates encryption information by using the channel key, and authorizes a user terminal that orders the virtual channel to the channel key, and multicasts the encryption information on the virtual channel. The user terminal that joins the virtual channel decrypts and obtains the content key by using the authorized channel key and then uses the content key to decrypt the encrypted content of the VOD program. Hence, it is necessary to encrypt the VOD program content once and store one corresponding encrypted program, thus saving storage resources of the system.
    • 用于实现虚拟通道服务的系统生成与虚拟通道上的每个VOD节目内容多播的每个视频点播(VOD)节目内容相关联的内容密钥,通过使用内容密钥和多播来加密VOD节目内容 虚拟频道上加密的VOD节目内容; 生成用于组播VOD节目内容的虚拟频道的频道密钥,加密内容密钥并通过使用频道密钥生成加密信息,授权订购虚拟频道的用户终端到频道密钥,并将加密信息多播 虚拟通道。 连接虚拟通道的用户终端通过使用授权的频道密钥解密并获取内容密钥,然后使用内容密钥对VOD节目的加密内容进行解密。 因此,需要一次加密VOD节目内容并存储一个对应的加密程序,从而节省系统的存储资源。