公开(公告)号：US5904748A

公开(公告)日：1999-05-18

申请号：US914258

申请日：1997-08-19

申请人： Jakob Ehrensberger ,  Michael Epstein ,  Amnon Yogev

发明人： Jakob Ehrensberger ,  Michael Epstein ,  Amnon Yogev

IPC分类号： B01J19/12 ,  C22B5/16 ,  C22B19/00 ,  C22B26/10 ,  F24S20/20 ,  C22B19/20

CPC分类号： F24J2/07 ,  B01J19/127 ,  C22B19/00 ,  C22B26/10 ,  C22B5/16 ,  Y02E10/41

摘要： Solar process for the production of volatile elemental zinc, sodium, and potassium by reacting their oxides with a reducing metallic agent selected from Fe, Sn, Ni, Co and Mn, and in a second step, reacting carbon or hydrogen with the oxide of said reducing metallic agent so as to reduce it back to its metallic form.

摘要翻译： 用于通过使其氧化物与选自Fe，Sn，Ni，Co和Mn的还原性金属剂反应来生产挥发性元素锌，钠和钾的太阳能方法，并且在第二步中，使碳或氢与所述 还原金属剂，以便将其还原成其金属形式。

公开(公告)号：US06530369B1

公开(公告)日：2003-03-11

申请号：US09856425

申请日：2001-09-10

申请人： Amnon Yogev ,  Michael Epstein

发明人： Amnon Yogev ,  Michael Epstein

IPC分类号： F24J202

CPC分类号： F24S23/79 ,  Y02E10/40

摘要： A solar radiation concentrating system (1) comprises at least two reflectors (12, 16) successively arranged along an optical path (4) of the system (1) so that a first (12) of the two reflectors (12, 16) reflects the radiation towards a second (16) of the two reflectors (12, 16). The reflectors (12, 16) have such spectral characteristics as to be capable of highly reflecting the radiation in a reflection range of wavelengths and absorbing the radiation in an absorption range of wavelengths, wherein the absorption range of wavelengths of the first reflector (12) substantially includes the absorption range of wavelengths of the second reflector (16).

摘要翻译： 太阳辐射集中系统（1）包括沿着系统（1）的光路（4）连续布置的至少两个反射器（12,16），使得两个反射器（12,16）中的第一（12）反射 朝向两个反射器（12,16）中的第二（16）的辐射。 反射器（12,16）具有这样的光谱特性，使得能够在波长的反射范围内高度反射辐射并且在波长的吸收范围内吸收辐射，其中第一反射器（12）的波长的吸收范围 基本上包括第二反射器（16）的波长的吸收范围。

公开(公告)号：US5578140A

公开(公告)日：1996-11-26

申请号：US384338

申请日：1995-02-01

申请人： Amnon Yogev ,  Vladimir Krupkin ,  Michael Epstein

发明人： Amnon Yogev ,  Vladimir Krupkin ,  Michael Epstein

IPC分类号： F24J2/07 ,  F24J2/10 ,  F24J2/18 ,  F24J2/48 ,  G02B26/08 ,  H01L31/052 ,  H01L31/058 ,  F24J2/00

CPC分类号： F24J2/07 ,  F24J2/06 ,  F24J2/10 ,  F24J2/18 ,  G02B26/08 ,  F24J2002/108 ,  Y02E10/41 ,  Y02E10/44 ,  Y02E10/46

摘要： The disclosure concerns various improvements in a solar energy plant of the kind in which incoming solar radiation is concentrated by a Fresnel reflector, i.e. a field of concentrating mirrors, and the concentrated radiation is focused into a solar receiver. By one improvement a dielectric mirror is provided at a suitable level above the solar collector, to reflect the concentrated solar radiation into the collector. By another disclosed improvement a plurality of non-imaging secondary concentrators arranged in concentric zones is provided intermediary between the dielectric mirror and receiver. By yet another improvement the solar receiver is directly attached to a heat storage system.

摘要翻译： 本公开涉及太阳能设备的各种改进，其中入射太阳辐射由菲涅尔反射器（即，集中反射镜的场）集中，并且集中的辐射聚焦到太阳能接收器中。 通过一个改进，在太阳能收集器上方的适当水平处提供介电镜，以将集中的太阳辐射反射到收集器中。 通过另一个公开的改进，设置在同心区域中的多个非成像二次集中器被提供在电介质反射镜和接收器之间。 通过另一个改进，太阳能接收器直接连接到蓄热系统。

公开(公告)号：US5980605A

公开(公告)日：1999-11-09

申请号：US912069

申请日：1997-08-15

申请人： Chengcai Yao ,  Michael Epstein ,  Amnon Yogev

发明人： Chengcai Yao ,  Michael Epstein ,  Amnon Yogev

IPC分类号： B01J19/12 ,  C22B5/10 ,  C22B26/10 ,  C21C7/00

CPC分类号： C22B5/10 ,  B01J19/127 ,  C22B26/10 ,  Y10S266/905

摘要： Production of metallic sodium and potassium by reaction of their hydroxides or carbonates with carbon. The carbon may be produced in situ by pyrolysis of a pyrolyzable carbonaceous material. There are further disclosed a process and installation for performing the production while using solar energy.

摘要翻译： 通过其氢氧化物或碳酸盐与碳的反应来生产金属钠和钾。 碳可以通过热解可热解的碳质材料的原位原位产生。 还公开了一种在使用太阳能的同时进行生产的方法和装置。

公开(公告)号：US08352582B2

公开(公告)日：2013-01-08

申请号：US09894391

申请日：2001-06-28

申请人： Michael Epstein

发明人： Michael Epstein

IPC分类号： G06F15/173

CPC分类号： H04L9/3271 ,  G06F21/10 ,  G06F21/554 ,  G06F2221/2111 ,  H04L63/0492 ,  H04L63/10

摘要： A security system assesses the response time to requests for information to determine whether the responding system is in physical proximity to the requesting system. Generally, physical proximity corresponds to temporal proximity. If the response time indicates a substantial or abnormal lag between request and response, the system assumes that the lag is caused by the request and response having to travel a substantial or abnormal physical distance, or caused by the request being processed to generate a response, rather than being answered by an existing response in the physical possession of a user. If a substantial or abnormal lag is detected, the system is configured to limit subsequent access to protected material by the current user, and/or to notify security personnel of the abnormal response lag.

公开(公告)号：US20060294362A1

公开(公告)日：2006-12-28

申请号：US10529778

申请日：2003-02-11

申请人： Michael Epstein

发明人： Michael Epstein

IPC分类号： G06F21/24

CPC分类号： H04L63/061 ,  H04L41/5009 ,  H04L63/0428 ,  H04L63/0442 ,  H04L63/0492 ,  H04L63/08

摘要： A system and method includes timing parameters within a node-verification protocol, such as OCPS, to facilitate a determination of the proximity of a target node to a source node. The node-verification protocol includes a query-response sequence, between the source node and the target node. The source node establishes a lower bound on the distance between the source node and the target node based on a measure of the time required to effect this query-response sequence including the time required to communicate the query and response, as well as the time required to process the query and generate the response. The target node includes a measure of the time required to process the query and generate the response to the source node. The source node subtracts this time from the total query-response time to determine the time consumed for the communication.

摘要翻译： 系统和方法包括节点验证协议（例如OCPS）内的定时参数，以便于确定目标节点与源节点的接近度。 节点验证协议包括源节点和目标节点之间的查询响应序列。 源节点根据影响该查询 - 响应序列所需时间的度量，包括传达查询和响应所需的时间以及所需的时间，建立源节点和目标节点之间距离的下限 处理查询并生成响应。 目标节点包括处理查询所需时间的度量，并产生对源节点的响应。 源节点从总查询响应时间中减去此时间，以确定通信所消耗的时间。

公开(公告)号：US07006658B2

公开(公告)日：2006-02-28

申请号：US10024787

申请日：2001-12-20

申请人： Michael Epstein

发明人： Michael Epstein

IPC分类号： G06K9/00

CPC分类号： G11B20/00884 ,  G11B20/00086

摘要： A security system is configured to use a variable length encoding of a security identifier for segments of protected content material. In this system, a distinction is made between a “zero” information bit, and the “absence” of the information bit in a shorter information item. A conventional N-bit information encoding is encoded as a variable bit encoding, wherein the information encoding ranges from N−k bits to N+k bits. By distinguishing “zero” bits from “absent” bits, this variable bit encoding allows for 2N−k+2N−(k−1) . . . +2N . . . +2N+(k−1)+2N+k possible unique information values. Preferably, the number of bits used for each encoding of a segment of a data set is a random value, further adding to the complexity of creating a dictionary mapping for protected content material.

摘要翻译： 安全系统被配置为对受保护内容资料的段使用安全标识符的可变长度编码。 在该系统中，在“零”信息位和较短信息项中信息位的“不存在”之间进行区分。 常规的N位信息编码被编码为可变位编码，其中信息编码范围从N-k位到N + k位。 通过将“零”比特与“不存在”比特区分开，该可变比特编码允许N个N-k + 2个N（k-1）个比特。 。 。 +2 。 。 。 + 2 N +（k-1）+2 N + k个可能的唯一信息值。 优选地，用于数据集的段的每个编码的比特数是随机值，进一步增加了创建用于受保护内容素材的字典映射的复杂性。

公开(公告)号：US20060041642A1

公开(公告)日：2006-02-23

申请号：US10529353

申请日：2003-09-22

申请人： Martin Rosner ,  Raymond Krasinski ,  Michael Epstein

发明人： Martin Rosner ,  Raymond Krasinski ,  Michael Epstein

IPC分类号： G06F15/177 ,  G06F15/173 ,  H04L12/28

CPC分类号： H04L63/08 ,  H04L43/50 ,  H04L63/0428 ,  H04L63/0442 ,  H04L63/0492 ,  H04L63/061 ,  H04L63/104

摘要： A system and method determines the proximity of the target node to the source node from the time required to communicate messages within the node-verification protocol. The node-verification protocol includes a query-response sequence, wherein the source node communicates a query to the target node, and the target node communicates a corresponding response to the source node. The target node is configured to communicate two responses to the query: a first response that is transmitted immediately upon receipt of the query, and a second response based on the contents of the query. The communication time is determined based on the time duration between the transmission of the query and receipt of the first response at the source node and the second response is compared for correspondence to the query, to verify the authenticity of the target node.

摘要翻译： 系统和方法从在节点验证协议内传送消息所需的时间确定目标节点与源节点的接近度。 节点验证协议包括查询响应序列，其中源节点向目标节点传送查询，并且目标节点将对应的响应传达给源节点。 目标节点被配置为向查询传达两个响应：在接收到查询时立即传送的第一响应和基于查询的内容的第二响应。 基于在源节点发送查询和接收第一响应之间的持续时间来确定通信时间，并将第二响应与查询对应进行比较，以验证目标节点的真实性。

公开(公告)号：US20060015351A1

公开(公告)日：2006-01-19

申请号：US10534597

申请日：2003-11-05

申请人： Michael Epstein

发明人： Michael Epstein

IPC分类号： G06Q99/00

CPC分类号： G06F21/10 ,  G06F2221/0797 ,  G06F2221/2101 ,  G06F2221/2137 ,  G06F2221/2153 ,  G11B20/00086 ,  G11B20/00746

摘要： A check-in/check-out system (100) and method creates limited-duration copies of protected content material (101). The system is configured to allow up-to-N contemporaneous copies (102) of the protected content material. A log (110) maintains a record of the copies currently outstanding, and their expiration times, after which time a conforming rendering device will cease to render the material of this expired copy. When a copy is returned, the entry in the log is deleted (270). If a copy is not returned to the system (100) before its expiration time, the system is configure to also delete its entry from the log (201), thereby allowing another copy to be made (250) to replace the expired copy, even though the expired copy has not been returned.

摘要翻译： 登记/退房系统（100）和方法创建受保护内容资料的有限期复制品（101）。 该系统被配置为允许受保护的内容材料的最新的N个同期拷贝（102）。 日志（110）维护当前未完成的副本及其到期时间的记录，在此之后，一个合格的渲染设备将停止呈现此过期副本的材料。 返回副本时，日志中的条目将被删除（270）。 如果在其到期时间之前没有将副本返回到系统（100），则系统被配置为也从日志（201）中删除其条目，从而允许另外的副本（250）来替换过期的副本，甚至 虽然过期的副本尚未退回。

公开(公告)号：US06530021B1

公开(公告)日：2003-03-04

申请号：US09323808

申请日：1999-06-02

申请人： Michael Epstein ,  Michael Pasieka

发明人： Michael Epstein ,  Michael Pasieka

IPC分类号： G06F124

CPC分类号： H04N21/8358

摘要： A method and system are provided for preventing the unauthorized playback of broadcasted digital data streams. The method includes the step of embedding a watermark in a digital data stream. The digital data stream having the embedded watermark is encrypted. The encrypted digital data stream is broadcasted with a ticket. The encrypted digital data stream and the ticket are received. The ticket is saved and the encrypted digital data stream is provided to a decryption device to decrypt the digital data stream. The decrypted digital data stream is received from the decryption device. The watermark is extracted from the decrypted digital data stream. A one-way cryptographic hashing function is applied to the saved ticket. The hashed ticket-is compared to the extracted watermark. Playback of the digital data stream is prevented, when the hashed ticket does not match the extracted watermark.

摘要翻译： 提供了一种方法和系统，用于防止广播的数字数据流的未授权播放。 该方法包括在数字数据流中嵌入水印的步骤。 具有嵌入水印的数字数据流被加密。 加密的数字数据流被传送给机票。 接收加密的数字数据流和故障单。 保存票据，将加密的数字数据流提供给解密装置以解密数字数据流。 从解密装置接收解密的数字数据流。 从解密的数字数据流中提取水印。 单程密码散列函数适用于保存的票据。 将散列票与提取的水印进行比较。 当散列票与提取的水印不匹配时，防止数字数据流的回放。