专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06393566B1 Time-stamp service for the national information network 失效
标题翻译：国家信息网的时间戳服务
公开(公告)号：US06393566B1
公开(公告)日：2002-05-21
申请号：US08508747
申请日：1995-07-28
申请人： Judah Levine
发明人： Judah Levine
IPC分类号： H04L930
CPC分类号： G06F21/645 , G06F2221/2115 , G06F2221/2151 , H04L9/3247 , H04L9/3297
摘要： A system and method for time-stamping and signing a digital document by an authenticating party and returning the signed stamped document to the originator or his designated recipient. Messages may be received by a first “public” machine over a network, by fax, or through input mediums such as diskettes. The clock of the first machine is synchronized with Universal Coordinated Time (UTC) and can be checked for accuracy by anyone on the network. A second “private” machine, not connected to any network, receives the time-stamped message, applies a hashing procedure and provides a signature using a private key. The signed hashed time-stamped message is then returned. A verify procedure is made widely available to check the genuiness of a document by rehashing the document and applying a public key. The result should match the signed time-stamped message returned by the authenticating party.
摘要翻译：一种由认证方对数字文件进行时间戳和签名的系统和方法，并将已签署的签名文件返回给发件人或其指定的收件人。消息可以由第一“公共”机器通过网络，传真或通过诸如软盘的输入介质来接收。第一台机器的时钟与通用协调时间（UTC）同步，可以由网络上的任何人进行精确检查。未连接到任何网络的第二个“私有”机器接收时间戳消息，应用散列过程并使用私钥提供签名。然后返回签名的散列时间戳消息。广泛使用验证程序，通过重新打印文档和应用公钥来检查文档的真实性。结果应与验证方返回的签名的时间戳消息相匹配。

2. 发明授权

US07856378B2 Method and system for facilitating trading of media space 有权
标题翻译：促进媒体空间交易的方法和系统
公开(公告)号：US07856378B2
公开(公告)日：2010-12-21
申请号：US10014103
申请日：2001-12-11
申请人： Alex Mashinsky , Judah Levine
发明人： Alex Mashinsky , Judah Levine
IPC分类号： G06Q30/00 , G06F17/30
CPC分类号： G06Q40/04 , G06Q30/0241
摘要： A system for trading media space includes a server node which receives requests for media space from buyers and offers of media space from sellers. The server node includes a set of rules for matching one of the requests and one of the offers to form a matched request and offer pair. A delivery system is connected to said server node for facilitating delivery of media content between the buyer and seller of the matched pair.
摘要翻译：用于交易媒体空间的系统包括从买家接收媒体空间的请求并从卖家提供媒体空间的服务器节点。服务器节点包括用于匹配请求之一和提供之一以形成匹配的请求和提供对的一组规则。传送系统连接到所述服务器节点，以便于在匹配对的买方和卖方之间传送媒体内容。

3. 发明授权

US5274545A Device and method for providing accurate time and/or frequency 失效
标题翻译：提供精确时间和/或频率的装置和方法
公开(公告)号：US5274545A
公开(公告)日：1993-12-28
申请号：US864167
申请日：1992-04-03
申请人： David W. Allan , Judah Levine , Dicky D. Davis , Marc A. Weiss
发明人： David W. Allan , Judah Levine , Dicky D. Davis , Marc A. Weiss
IPC分类号： G04G3/00 , G04G7/02 , G04G21/04 , G06F1/12 , G06F1/14 , G04G5/00
CPC分类号： G04G7/026 , G04G21/04 , G06F1/12 , G06F1/14
摘要： A device and method provide for an accurate output from a unit, such as an oscillator and/or clock providing an output indicative of frequency and/or time. The device includes a processing section having a microprocessor that develops a model characterizing the performance of the device, including establishing predicted accuracy variations, and the model is then used to correct the unit output. An external reference is used to provide a reference input for updating the model, including updating of predicted variations of the unit, by comparison of the reference input with the unit output. The ability of the model to accurately predict the performance of the unit improves as additional updates are carried out, and this allows the interval between the updates to be lengthened and/or the overall accuracy of the device to be improved. The accuracy of the output is thus adaptively optimized in the presence of systematic and random variations.
摘要翻译：设备和方法提供来自单元的准确输出，例如提供表示频率和/或时间的输出的振荡器和/或时钟。该装置包括具有微处理器的处理部分，该微处理器开发表征装置的性能的模型，包括建立预测的精度变化，然后使用该模型来校正单位输出。通过比较参考输入和单位输出，外部参考用于提供用于更新模型的参考输入，包括更新单元的预测变化。随着执行额外的更新，模型准确预测单元性能的能力得到改善，这样可以使更新之间的间隔延长和/或改进设备的整体精度。因此，在存在系统和随机变化的情况下，输出的精度被自适应地优化。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式