会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明授权
    • Terminal adapter capable of reducing a memory capacity of a buffer memory
    • 能够减少缓冲存储器的存储容量的终端适配器
    • US5646959A
    • 1997-07-08
    • US302544
    • 1994-09-08
    • Yoshiyuki Kamishima
    • Yoshiyuki Kamishima
    • H04Q11/04H04B1/66H04B14/06H04L23/00
    • G06F3/14H04Q11/0471G09G2370/025H04Q2213/034H04Q2213/103H04Q2213/174H04Q2213/216H04Q2213/297
    • In a terminal adapter which is located between a data terminal equipment unit (11) and a data communication network (12) and which includes a buffer memory (22, 27) for memorizing an original data signal sequence sent from each of the data terminal equipment unit and the data communication network, the original data signal sequence is subjected to data compression by a data compression circuit to be thereafter memorized into the buffer memory and to be read out of the buffer memory as a readout data signal sequence. The readout data signal sequence is expanded by a data expansion circuit (32, 35) to be sent to the data terminal equipment unit or the data communication network at a transmission rate matched therewith. The data compression may be executed by the use of an LZ method, a modified LZ method, such as LZW, LZSS, or the like.
    • 在位于数据终端设备单元(11)和数据通信网络(12)之间的终端适配器中,包括缓冲存储器(22,27),用于存储从每个数据终端设备发送的原始数据信号序列 单元和数据通信网络,原始数据信号序列由数据压缩电路进行数据压缩,然后被存储到缓冲存储器中,并作为读出数据信号序列从缓冲存储器读出。 读出数据信号序列由数据扩展电路(32,35)扩展,以与之对应的传输速率发送到数据终端设备单元或数据通信网络。 可以通过使用LZ方法,LZW,LZSS等的修改的LZ方法来执行数据压缩。
    • 10. 发明授权
    • Adaptor between ISDN basic rate access and switched-56 accesses
    • ISDN基本速率接入和交换56接入之间的适配器
    • US5479405A
    • 1995-12-26
    • US234314
    • 1994-04-28
    • Mark C. KozJack W. Lix
    • Mark C. KozJack W. Lix
    • H04Q11/04H04L12/66
    • H04Q11/0471H04Q2213/174H04Q2213/214H04Q2213/297
    • The invention is an adaptor which permits using a digital telephone device with an incompatible telephone network access. In its most preferred embodiment, the present invention is an adaptor which permits an ISDN telephone device to exchange digital data with two Switched-56 Access. An ISDN Basic Rate Access interface circuit interfaces with the ISDN telephone device, while two Switched-56 Access interface circuit interfaces with two Switched-56 Access. The adaptor also includes a clock recovery circuit for synchronizing digital data transfers occurring between the ISDN Basic Rate Access interface circuit and the ISDN telephone device with the digital data transfers occurring between the Switched-56 Access interface circuit and the Switched-56 Access. In an alternative embodiment, the clock recovery circuit synchronizes digital data transfers between the ISDN Basic Rate Access interface circuit and the Switched-56 Access interface circuits rather than conversely as in the preferred embodiments so a Switched-56 telephone device may exchange digital data with an ISDN Basic Rate Access.
    • 本发明是允许使用具有不兼容电话网络访问的数字电话设备的适配器。 在其最优选的实施例中,本发明是一种适配器,其允许ISDN电话设备与两个Switched-56接入交换数字数据。 ISDN基本速率接入接口电路与ISDN电话设备接口,而两个交换机56接入接口电路与两个交换机56接入。 适配器还包括时钟恢复电路,用于将ISDN基本速率访问接口电路和ISDN电话设备之间发生的数字数据传输与在切换56接入电路和切换56接入之间发生的数字数据传输同步。 在替代实施例中,时钟恢复电路在ISDN基本速率访问接口电路和开关56接入电路之间同步数字数据传输,而不是如优选实施例那样相反,因此切换56电话设备可以与 ISDN基本速率访问。