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    • 1. 发明授权
    • Testing user terminal status
    • 测试用户终端状态
    • US07808928B2
    • 2010-10-05
    • US11322265
    • 2006-01-03
    • Yong-Shin KimJoon-Sung Chun
    • Yong-Shin KimJoon-Sung Chun
    • H04L12/28
    • H04L65/1073H04L65/1006
    • A network system and method of testing the terminal status so as to acquire the link status of the wired/wireless terminals associated to the VoIP-based network includes at least one user terminal which transmits a status message in response to a SIP-based Options message and a soft switch which transmits the Option message, determines whether or not the status message has been received, and recognizes whether the user terminal is in a Busy state or an Idle state based on a result of the determination. Since the terminal status can be accurately determined, it is possible to process calls, manage the terminal, and fairly charge the utilization costs to improve the stability and QoS of the network system.
    • 测试终端状态以便获取与基于VoIP的网络相关联的有线/无线终端的链路状态的网络系统和方法包括响应于基于SIP的选项消息发送状态消息的至少一个用户终端 以及发送选择消息的软交换机,确定状态消息是否已经被接收,并且基于确定的结果来识别用户终端是处于忙状态还是空闲状态。 由于可以准确地确定终端状态,因此可以处理呼叫,管理终端,并且可靠地收取利用成本以提高网络系统的稳定性和QoS。
    • 4. 发明申请
    • Testing user terminal status
    • 测试用户终端状态
    • US20060159245A1
    • 2006-07-20
    • US11322265
    • 2006-01-03
    • Yong-Shin KimJoon-Sung Chun
    • Yong-Shin KimJoon-Sung Chun
    • H04M1/24H04M3/42
    • H04L65/1073H04L65/1006
    • A network system and method of testing the terminal status so as to acquire the link status of the wired/wireless terminals associated to the VoIP-based network includes at least one user terminal which transmits a status message in response to a SIP-based Options message and a soft switch which transmits the Option message, determines whether or not the status message has been received, and recognizes whether the user terminal is in a Busy state or an Idle state based on a result of the determination. Since the terminal status can be accurately determined, it is possible to process calls, manage the terminal, and fairly charge the utilization costs to improve the stability and QoS of the network system.
    • 测试终端状态以便获取与基于VoIP的网络相关联的有线/无线终端的链路状态的网络系统和方法包括响应于基于SIP的选项消息发送状态消息的至少一个用户终端 以及发送选择消息的软交换机,确定状态消息是否已经被接收,并且基于确定的结果来识别用户终端是处于忙状态还是空闲状态。 由于可以准确地确定终端状态,因此可以处理呼叫,管理终端,并且可靠地收取利用成本以提高网络系统的稳定性和QoS。
    • 8. 发明授权
    • Thin film electroluminescent device having thin-film current control layer
    • 具有薄膜电流控制层的薄膜电致发光器件
    • US06674234B2
    • 2004-01-06
    • US09978456
    • 2001-10-16
    • Yong-Shin KimSun Jin YunSang-Hee ParkYong Eui Lee
    • Yong-Shin KimSun Jin YunSang-Hee ParkYong Eui Lee
    • H05B3302
    • H05B33/22
    • The inventive thin-film DC-driving electroluminescent device (ELD) is characterized by the thin-film current control layer which is inserted between a thin film phosphor layer and metal electrodes. This kind of ELD has the advantages of having a lower operation voltage than that of the conventional thin-film AC ELD and a higher resolution than that of the conventional thin-film/powder hybrid DC ELD. The thin-film current control layer acts as an energy barrier layer which supplies energetic electrons into said phosphor layer by a field-assistant injection of electron, and a current-limiting layer which prevents an electric field breakdown of said electroluminescent device caused by an excess current flow. The current control layer is embodied with a multilayered thin film laminated by an alternate deposition of metal oxides. In another embodiment, the current control layer consists of both an energy barrier layer and a current-limiting layer, separately formed.
    • 本发明的薄膜直流驱动电致发光器件(ELD)的特征在于薄膜电流控制层,其插入在薄膜荧光体层和金属电极之间。 这种ELD具有比常规薄膜AC ELD低的操作电压和比常规薄膜/粉末混合DC ELD更高的分辨率的优点。 薄膜电流控制层用作通过场辅助电子注入向高能电子提供能量电子的能量阻挡层,以及限制所述电致发光器件由过量的电场引起的电场击穿的限流层 当前流。 电流控制层由通过金属氧化物的交替沉积层压的多层薄膜来实现。 在另一个实施例中,电流控制层由分别形成的能量阻挡层和限流层组成。