數位電視服務之爭思科反控OpenTV

2013年1月18日，網路設備商思科（Cisco Systems, Inc.）及其3家子公司CiscoTechnology, Inc.、NDS America, Inc.(於2012年被思科所併購之影像軟體和資訊安全解決方案供應商)和Scientific Atlanta LLC(於2005年被思科所併購之美國大型有線電視視訊轉換器生產商)，向美國加州北區聯邦地院提起確認專利未受侵權與無效之訴，請求法院宣告Cisco並未侵權被告OpenTV Inc.(下稱OpenTV)所擁有之6項專利，並主張Cisco該6項專利為無效。

在同案訴訟中，思科等原告亦對OpenTV、以及與OpenTV同屬Kudelski Group之數位媒體技術供應商Nagra USA, Inc.(下稱Nagra)提起專利侵權告訴，控告OpenTV提供給有線電視系統業者與收視戶電視機上盒所使用、作為條件式存取視訊裝置的產品OpenTV Middleware，以及Nagra提供給數位電視服務提供者使用之條件式內容存取系統產品MediaAccess，侵犯思科等原告所擁有、3項與數位電視服務之條件式存取系統相關的專利權利。

思科等原告在其訴狀中主張，OpenTV向思科客戶提出警告，指稱思科之相關產品或服務侵犯技術內容與系爭6項OpenTV專利相關或近似的歐洲專利；此外，思科等原告亦指出，OpenTV對另一家公司Netflix, Inc.所提起之專利侵權告訴(案號為1:12-cv-01733，基於7項專利，其中2項與OpenTV主張受思科客戶侵犯之歐洲專利權利相關)，與Cisco所遭遇情況有可對照之處。思科等原告主張，基於前述事實，以及OpenTV公開宣稱其意圖透過訴訟主張其專利權利、OpenTV與思科之協商過程等，讓思科等原告有受到可透過司法救濟之實質與即刻損害之虞，所以思科等原告具有訴權基礎可以針對系爭OpenTV專利提起確認未受侵權與無效之訴。

思科等原告請求法院宣告以下6項專利不侵權或無效：

美國專利編號US 5,585,858，名稱為「互動訊號與普通視訊訊號之聯播（Simulcast of interactive signals with a conventional video signal）」，於1996年12月17日核發，思科主張該專利與其被控侵權之歐洲專利EP0723729具備實質近似之請求項；

• 美國專利編號US 5,724,091，名稱為「經壓縮數位資料互動節目系統（Compressed digital data interactive program system）」，於1998年3月3日核發，思科主張該專利與其被控侵權之歐洲專利EP0965227具備實質近似之請求項；
• 美國專利編號US 5,761,606，名稱為「透過嵌入視訊或音訊節目之位址進行媒體線上服務使用（Media online services access via address embedded in video or audio program）」，於1998年6月2日核發，思科主張該專利與其被控侵權之歐洲專利EP0879534具備實質近似之請求項；
• 美國專利編號US 7,882,533，名稱為「用於互動電視之數位電視應用程式協定（Digital television application protocol for interactive television）」，於2011年2月1日核發，思科主張該專利與其被控侵權之歐洲專利EP1364511具備實質近似之請求項；
• 美國專利編號US 7,900,233，名稱為「顯示隨選視訊之方法與系統（Process and system for displaying video programs on demand）」，於2011年3月1日核發，思科主張該專利與其被控侵權之歐洲專利EP1249128具備實質近似之請求項；
• 美國專利編號US 7,961,743，名稱為「互動電視的服務閘道（Service gateway for interactive television）」，於2011年6月14日核發，思科主張該專利與其被控侵權之歐洲專利EP1364511具備實質近似之請求項。

還有，思科等原告就以下3項專利提起專利侵權告訴，其原始權利人均為Scientific-Atlanta, Inc.，於2005年被思科所併購之美國大型有線電視視訊轉換器生產商：

• 美國專利編號US 6,252,964，名稱為「在條件式存取系統中進行服務授權（Authorization of services in a conditional access system）」，於2001年6月26日核發；
• 美國專利編號US 6,744,892，名稱為「在條件式存取系統中提供地域限定服務之方法與裝置（Method and apparatus for geographically limiting service in a conditional access system）」，於2004年6月1日核發；
• 美國專利編號US 7,505,592，名稱為「用來授權並傳送服務實例至遠端客戶裝置的裝置（Apparatus for entitling and transmitting service instances to remote client devices）」，於2009年3月17日核發。

思科等原告在其訴狀中指稱，OpenTV近年來因營收下滑，轉向透過主張專利權利來獲取利潤。(1354字；表3)

表一、系爭專利之請求項解析(Open TV專利)

US 5,585,858請求項1	US 5,724,091請求項1
1. A fully interactive system for receiving an interactive program signal simulcasting an interactive program and a conventional television program, both programs provided with one conventional television video signal, to multiple subscriber locations permitting authorized interactive subscribers to interact with and receive different and personalized responses from the interactive program and noninteractive subscribers to view and listen to a conventional television program, the system comprising: 一項用來接收聯播一互動節目與普通電視節目之互動節目訊號的完全互動系統，前述兩個節目均透過一普通電視視訊訊號被提供給到多個用戶位置並准許獲授權之互動用戶來進行互動並從前述互動節目接收不同且個人化之回應、而非互動用戶則觀看並收聽普通電視節目，該系統包括	1. In an interactive television system having a plurality d subscriber television reception systems, each of said subscriber television reception systems (Fig.1 - 11) comprising a multichannel television receiver (Fig.1 - 7), each of said multichannel television receivers having a plurality of different television reception channels, each of said television reception channels having a different associated communication frequency; 在一具備複數用戶電視接收系統的互動電視系統中，每個前述用戶電視接收系統包括一多頻道電視接收器，每個前述多頻道電視接收器包括複數不同電視接收頻道，每個前述電視接收頻道具備一不同的關聯通訊頻率
at least one means for receiving the interactive program signal (Fig.7 - 615), wherein the interactive program signal contains a plurality of audio channels, graphics data, control data, a standard video signal and standard audio signal, wherein the control data contains branching codes and trigger points, and whereby the branching codes provide for the linking of one or more audio segments to form a complete and personalized message; 至少一工具，用來接收互動節目訊號，互動節目訊號包含複數聲道、圖形資料、控制資料、標準視訊訊號與標準音訊訊號，控制資料包含分支碼與啟動點，分支碼提供來連結一或多個音訊片段、藉以形成完整與個人化的訊息	a television subscriber distribution network connected to said plurality of subscriber television reception systems; 一電視用戶內容散佈網路，與前述複數用戶電視接收系統相連接
	and a television programming transmission means (Fig.1 - 5) connected to said subscriber distribution network for providing transmitted interactive television programming thereto, said subscriber distribution network providing said transmitted interactive television programming to said plurality of subscriber television reception systems, said television programming transmission means comprising means for substantially simultaneously providing a multi-information interactive television program communication signal as said transmitted interactive television programming to said subscriber distribution network; 一電視節目傳送工具，其與前述用戶內容散布網路相連接，用來提供經傳送之互動電視節目到該網路上，前述用戶內容散布網路提供前述經傳送互動電視節目到前述複數用戶電視接收系統，前述電視節目傳送工具包括用來實質並同時將多重資訊互動電視節目通訊訊號，做為前述經傳送互動電視節目，提供給前述用戶內容散布網路
	the improvement comprising: 技術改良包括
at least one means for displaying the standard video signal, 至少一工具，用來顯示標準視訊訊號	a plurality of simultaneously provided different program information message signals related in real-time and content to each other, said plurality of program information message signals in a compressed digital format and comprising said multi-information interactive television program communication signal, each of said plurality of program information message signals having an associated communication frequency corresponding with one of said plurality of different television reception channels, more than one of said program information message signals having the same associated communication frequency and combined into a multiplexed interactive television program information signal with at least one other of said program information message signals, said combined program information signals transmitted in said multi-information interactive television program communication signal, wherein each of said program information message signals is independently receivable; 複數個同時提供之不同、在時間上與內容上彼此相關的節目資訊訊息訊號，前述複數節目資訊訊息訊號為經壓縮數位格式並構成前述多重資訊互動電視節目通訊訊號，每個前述複數節目資訊訊息訊號具備一與其相關且相應於複數不同電視接收頻道之其中之一的通訊頻率，超過一個具備相同通訊頻率之前述節目資訊訊息訊號、與至少一個其他前述節目資訊訊息訊號被組合成一多工互動電視節目資訊訊號，前述經組合節目資訊訊號在前述多重資訊互動電視節目通訊訊號中被傳送，個別前述節目資訊訊息訊號為獨立可被接收
at least one interactive program means, connected to the receiving means and display means, for permitting authorized interactive subscribers to interact with and receive different personalized responses, comprising: 至少一互動節目工具，連接於前述接收工具與前述顯示工具，用來准許獲授權互動用戶來進行互動並接收不同且個人化之回應，包括	any of said different television reception channels carrying either a single one of said program information message signals or said multiplexed interactive television program information signal; 任何前述不同電視接收頻道承載單一前述節目資訊訊息訊號或前述多工互動電視節目資訊訊號
a means for demodulating the standard video and standard audio signal (Fig.7 - 616); 一工具，用來解調標準視訊與標準音訊訊號	each of said multichannel television receivers independently receiving and selecting any of said plurality of program information message signals dependent on the television reception channel selected and the signal selected therefrom, each of said multichannel television receivers comprising a demultiplexing multichannel selection means (Fig.3 - 106) for demultiplexing said multiplexed interactive television program information signal and selecting the television reception channel associated frequency to be received, signal selection means for selecting a particular program information message signal from said demultiplexed interactive television program information signal, decompression means (Fig.3 - 110) for decompressing said compressed digital format of said selected program information message signals, said decompression means requiring an adjustment period upon switching from a first selected multiplexed program information message signal to a next selected multiplexed program information message signal, each of said program information message signals having a designated position indicator in said demultiplexing multichannel selection means; and 每個前述多頻道電視接收器依據被選擇之電視接收頻道與從該頻道而選擇出的訊號、獨立接收並選擇任何前述複數節目資訊訊息訊號，每個前述多頻道電視接收器包括，用來多工解訊前述多工互動電視節目資訊訊號並選擇被接收之電視接收頻道相關頻率的一多工解訊多頻道選擇工具、用來從前述經多工解訊之互動電視節目資訊訊號中選擇一特定節目資訊訊息訊號的一訊號選擇工具、用來解壓縮前述經選擇節目資訊訊息訊號之經壓縮數位格式的一解壓縮工具，前述解壓縮工具需求一從第一經選擇之多工節目資訊訊息訊號轉換到下一個經選擇之多工節目資訊訊息訊號的調整期，每個前述節目資訊訊息訊號在前述多工解訊多頻道選擇工具中具備一指定位置指示
means for extracting (Fig.7 - 175), connected to the demodulating means, the plurality of audio channels and graphics and control data from the interactive program signal, wherein each audio channel comprises one or more audio segments; 擷取工具，連接於前述解調工具，用來從互動節目訊號擷取複數聲道、圖形與控制資料，個別聲道構成一或多個音訊片段
means for storing the graphics and control data (Fig.7 - 283), wherein the graphics comprises graphics codes designating at least one interrogatory message; 用來儲存圖形與控制資料之工具，該圖形包括指定至少一個訊問訊息之圖形碼
means for gathering at least one subscriber entry; 用來蒐集至少一個用戶輸入之工具	Means (Fig.3 – 160), connected to the decompression means, for providing a delay for a time corresponding to said adjustment period during a switch from said first selected multiplexed program information message signal to said next selected multiplexed program information message signal of said multichannel interactive program for allowing said decompression means a period of time to adjust to said switch and to thereby enhance the efficiency of said decompression means, said delay providing means effecting a delay for said adjustment period in response to selection of said next selected multiplexed program information message signal, said demultiplexing multichannel selection means decoding said next selected multiplexed program information message signal in response to selection of said next selected multiplexed program information message signal, said multi-information interactive television program communication signal simultaneously provided related program information message signals enabling a program information message signal switch from said first selected multiplexed program information message signal to said next selected multiplexed program information message signal without a visually perceptible associated delay; 連接於前述解壓縮工具、用來為相應於從前述多頻道互動節目之第一經選擇之多工節目資訊訊息訊號轉換到下一個經選擇之多工節目資訊訊息訊號之調整期提供一延遲時間，用來讓前述解壓縮工具有一段時間可以對前述轉換做出調整並據以提升前述解壓縮工具的效能，前述延遲提供工具回應選擇前述下一個經選擇之多工節目資訊訊息訊號而啟動前述調整期的延遲時間，前述多工解訊多頻道選擇工具解碼前述下一個經選擇之多工節目資訊訊息訊號，前述多重資訊互動電視節目通訊訊號在不引起視覺可感知的相關延遲的情況下、同時提供可啟動從前述一經選擇之多工節目資訊訊息訊號到前述下一個經選擇之多工節目資訊訊息訊號之節目資訊訊息轉換的相關節目資訊訊息訊號
program selection means (Fig.7 - 178), operably connected to the storage means and extracting means, for reading the control data, controlling operation of the interactive program means, and selecting a personalized response at predetermined trigger points, whereby the trigger point initiates the selection of the personalized response corresponding to an interactive event for presentation to the subscriber, comprising: 節目選擇工具，連接於前述儲存工具與前述擷取工具，用來讀取控制資料，控制互動節目工具之運作，並在預設之啟動點上選擇一個人化回應，該啟動點對應一向用戶呈現之互動事件而起始個人化回應之選擇，包括
means for selecting one or more audio segments or graphics messages to form a personalized audio or graphics response, whereby the subscriber entry and branching codes are used in each branch in formulating the personalized audio or graphics response; 用來選擇一或多個音訊片段或圖形訊息、藉以形成一個人化音訊或圖形回應的工具，前述用戶輸入與分支碼在每個分支上被用來將個人化音訊或圖形回應公式化	at least one of said program information message signals further comprising video information for display on said multichannel television receiver corresponding to informational labels to be dynamically assigned to said designated position indicators for a particular multi-information interactive television program, said informational labels are dynamically variable dependent on the content of said multi-information interactive television program; 至少一個前述節目資訊訊息訊號進一步包括用來對應於被動態分配到一特定多重資訊互動電視節目之前述指定位置指示的資訊標籤、而顯示在前述多頻道電視接收器上的視訊資訊，前述資訊標籤是依據前述多重資訊互動電視節目之內容而動態可變
a graphics generator, connected to the program selection means, for presenting graphics messages on the display means; and 一圖形產生器，連接於前述節目選擇工具，用來在顯示工具上呈現圖形訊息	wherein flexible multi-information interactive television programming is provided with a reduced number of television channels and wherein a multichannel interactive program is viewed without a visually perceptible delay when switching between channels of the interactive program during said interactive television program. 具彈性之多重資訊互動電視節目以較少數量之電視頻道來提供，而單一多頻道互動節目可在沒有視覺可感知之延遲的情況下被觀看、當在前述互動電視節目進行中互動節目頻道被轉換時
means for interactively presenting the standard video and standard audio and the personalized audio or graphics response to the interactive subscribers so that interactive subscribers fully interact with the program to alter program content and interact uniquely and differently from other interactive subscribers to receive personalized responses while noninteractive subscribers continue to receive a conventional television program. 用來向互動用戶互動呈現標準視訊與標準音訊與前述個人化音訊或圖形回應之工具，藉以讓互動用戶可以與節目完全互動，改變節目內容，並以特別且與其他互動用戶不同之方式來互動接收個人化回應，當非互動用戶持續接收普通電視節目
US 5,761,606 請求項1	US 7,882,533 請求項1
1. A method of providing to a user of online information services, at the time of viewing a video program represented by an electronic signal (Fig.2 - 12), direct digital communication access to an online information provider through a link provided in said video program, comprising: 一項在其觀看由一電子訊號所表徵之視訊節目時、透過前述視訊節目中所提供之連結來與一線上資訊提供者進行直接數位通訊、藉以提供使用者線上資訊服務之方法，包括	1. A non-transitory computer readable storage medium (Fig.1 - 50) containing instructions that when executed cause a computer to: 一項非暫態之電腦可讀取儲存媒介，其包含指令，當該指令被執行時會致使一電腦進行以下動作
electronically extracting an address associated with the online information provider from an information signal embedded in said electronic signal (Fig.2 - 42); 從嵌入在前述電子訊號中之一個資訊訊號裡電子式擷取與前述線上資訊提供者有關之位址	receive at a server from a client device (Fig.1 - 212), an uncompressed first message containing at least one of application code, control, data, and audio/visual data in the client device compatible protocol different from HTTP, the uncompressed first message encapsulating an HTTP request; 在一伺服器上接收來自一客戶裝置的一未經壓縮之第一訊息，其包含至少一個應用程式碼、控制指令、資料以及音訊/視訊資料，並依據不同於HTTP而相容於客戶裝置之協定傳送，前述未經壓縮之第一訊息封裝一個HTTP之要求
	translate the first message into a standard HTTP communication protocol message at the server; 在前述伺服器上將前述第一訊息翻譯成依循標準HTTP通訊協定之訊息
indicating to the user that an address has been extracted permitting communication with the online information provider (Fig.2 - 46); and 向使用者指示出，前述被擷取之位址可以用來與前述線上資訊提供者進行通訊	send the translated uncompressed HTTP message from the server to a service provider (Fig. 1 - 200); 從伺服器傳送經翻譯而未經壓縮之HTTP訊息至一服務提供者
	receive a cookie at the server from the service provider in response to the HTTP message; 在伺服器上接收一來自服務提供者回應前述HTTP訊息之cookie
	cache the cookie at the server; 在前述伺服器上快取前述cookie
automatically using said extracted address, in response to a user initiated command, to establish a direct digital communication link with the online information provider associated with said extracted address. 回應使用者之啟動指令，自動使用前述被擷取之位址，來與和前述被擷取位址有關之線上資訊提供者建立直接數位通訊之連結	generate a cookie to session identifier translation table; 產生一個連到對話識別翻譯表之cookie
	use the cookie to session identifier translation table to answer a client device hardware identifier name request from an HTTP server; and 使用連到對話識別翻譯表之cookie來答覆來自一HTTP伺服器對客戶裝置硬體識別名稱之需求
	use the client device hardware identifier to extract user information from a central registry. 使用前述客戶裝置硬體識別來從一中央註冊資料庫中擷取使用者資訊
US 7,900,233 請求項1	US 7,961,743 請求項1
1. A process for displaying video programs on demand at the request of a user in a network system, said network system providing a plurality of near video on-demand ("NVOD") programs, each of said NVOD programs being started with a respective predetermined periodicity, said process comprising: 一項用來依據在網路系統中使用者所要求之需求播放視訊節目的方法，前述網路系統提供複數近隨選視訊(NVOD)節目，每個前述NVOD節目依其個別被預設之週期性來啟始，前述方法包括	1. A server for use in an interactive television system, wherein the server comprises: 一項用於互動電視系統中的伺服器，該伺服器包括
recording in advance a beginning sequence (Fig.1 - 11) of each NVOD program from said network system, during a period of time at least equal to the corresponding time period of periodicity (Fig.1 – t1-t0); 預先錄製來自前述網路系統之個別NVOD節目的開始片段，其時間長度至少等於週期性的相應時間長度	a first interface configured to receive a message from a client device (Fig.2 - 212) targeted to a service provider (Fig.2 -200), wherein the message includes a client device identifier; 第一介面，其被配置來接收來自一客戶裝置、以一服務提供者為目標的訊息，該訊息包括一客戶裝置識別
testing for a new NVOD program being broadcast, and initiating recording of a beginning sequence of the new NVOD program; 測試新NVOD節目之廣播，並啟動錄製該新NVOD節目之開始片段	a component configured to replace the client device identifier with a session identifier in the message; 一組件，其被配置來以一對話識別來取代前述訊息中的客戶裝置識別
selecting a NVOD program from a menu; 從節目清單中選取一NVOD節目	a second interface configured to: send the message with the session identifier to a service provider; and receive a cookie from the service provider in response to the message; 第二介面，其被配置來：傳送包含對話識別之訊息給服務提供者；並接收來自該服務提供者回應該訊息之cookie
displaying the beginning sequence of the selected NVOD program and while displaying the beginning sequence, recording a following sequence (Fig.1 - 14) that follows the beginning sequence of said selected program from the NVOD network so that said following sequence of said selected program gets stored before the user reaches it; 播放被選取之NVOD節目的開始片段並在播放該開始片段之同時，錄製接續來自前述NVOD網路之被選取節目開始片段的後續片段，讓前述被選取節目之前述後續片段可以在使用者觀看到該段落其被儲存
displaying said following sequence in a continuation or partial overlap of said beginning sequence of the selected program; and 播放前述後續片段，接續在或部分重疊於被選取節目之前述開始片段	a component configured to use a cookie to session identifier translation to answer a client device identifier name request from the service provider; and 一組件，其被配置來使用對話識別翻譯之cookie來答覆來自前述服務提供者對客戶裝置識別名稱之要求
if needed, recording and then displaying subsequent following sequences of said selected program until the end of said selected program. 若有需要，錄製進而播放前述被選取節目接下來的後續片段直到前述被選取節目結束	a component configured to use the client device identifier to extract user information from a central registry. 一組件，其被配置來使用前述客戶裝置識別來從一中央註冊資料擷取使用者資訊

Source: 科技政策研究與資訊中心—科技產業資訊室整理，2013/02

表二、系爭專利之請求項解析(思科等原告專利)

US 6,252,964請求項1	US 6,744,892請求項1
1. Conditional access apparatus for giving a receiver conditional access to an instance of service received in the receiver (Fig.3 - 333), one or more entitlements to access the instance of service being given by one or more entitlement agents and the conditional access apparatus comprising: 條件式存取裝置，用來讓一接收器有條件存取一經該接收器所接收之服務實例，一或多個存取該服務實例之權限是由一或多個授權主體所授予，該條件式存取裝置包括	1. A receiver (Fig.1 – 113(i)) located at a geographic location for receiving and selectively displaying a service instance, the receiver comprising: 一項位於一地理位置、用來接收與選擇性顯示一服務實例的接收器，該接收器包括
entitlement agent establishment apparatus (Fig.3 - 339) in the receiver for establishing at least one of the entitlement agents in the conditional access apparatus; 在前述接收器中的授權主體確立裝置，用來確立在前述條件式裝置中的至少一個授權主體	a port for receiving an encrypted service instance (Fig.1 - 105) and entitlement information (Fig.1 - 107) associated therewith, wherein at least a portion of the entitlement information includes geographic reception information; 用來接收一加密服務實例以及與其相關權限資訊的接收埠，前述權限資訊之至少一部分是包括地理接收資訊
	a first microprocessor(Fig.1 - 115) for activating display of the service instance; 第一微處理器，用來啟動前述服務實例之顯示
entitlement specification apparatus (Fig.3 - 343) in the receiver for specifying the one or more entitlements for the at least one entitlement agent, and wherein the entitlement agent establishment apparatus and the entitlement specification apparatus operate in response to further messages received in the receiver; and 在前述接收器中的權限規格說明裝置，用來規定前述至少一個授權主體所用之一或多個權限，前述授權主體確立裝置與前述權限規格說明裝置是回應接收器所接收之進一步訊息而運作	a secure element coupled to the first microprocessor, the secure element comprising: a memory (Fig.1 - 121) for storing a geographic location indicator indicative of the geographic location of the receiver; and a second microprocessor (Fig.1 - 119) for processing the geographic reception information and for using the processed geographic reception information with the geographic location indicator to determine whether the receiver is entitled to the service instance; and 一耦接於前述第一處理器之保全元件，該保全元件包括：一記憶體，用來儲存指示出前述接收器地理位置的地理位置指示；以及第二處理器，用來處理地理接收資訊，以及用來藉由使用經處理之地理接收資訊與前述地理位置指示、決定前述接收器是否有權限接收前述服務實例
access granting apparatus (Fig.3 - 347) in the receiver for granting access to the instance of service in response to a first message received in the receiver which indicates the entitlement agent and the entitlement only if the entitlement agent establishment apparatus has established the entitlement agent, and the entitlement specification apparatus has granted the entitlement, and wherein the entitlement agent establishment apparatus disestablishes the entitlement agent in response to a given message of the further messages. 在前述接收器中的存取同意裝置，用來回應接收器所接收、指示出授權主體與權限內容之第一訊息，並僅在前述授權主體確立裝置確立該授權主體以及前述權限規格說明裝置核可該權限內容時，同意存取前述服務實例，而前述授權主體確立裝置回應進一步訊息中既定訊息，會取消就授權主體之確立	wherein the first microprocessor activates display of the service instance when the secure element determines that the receiver is entitled to the service instance. 當前述保全元件決定前述接收器有權限接收前述服務實例時，前述第一處理器啟動前述服務實例之顯示
US 7,505,592請求項1
1. A method of transmitting service instances to a remote client device in a local network, including a communications device (Fig.1 - 110) and one or more of said remote client devices (Fig.1 - 122), at a subscriber premises (Fig.1 – 108(a)), comprising the steps of: 一項在區域網路中傳送服務實例到一遠端客戶裝置的方法，該網路包括位在用戶駐地的一通訊裝置與一或多個前述遠端客戶裝置，該方法包括以下步驟
receiving a service instance at the communications device of the subscriber premises from a headend (Fig.1 - 102), wherein the service instance is stored in memory of the communications device; 在用戶駐地之通訊裝置上接收來自一頭端設備的服務實例，該服務實例被儲存在通訊裝置的記憶體中
receiving a request at the communications device for the stored service instance from the remote client device; 在通訊裝置上接收來自遠端客戶裝置、傳送被儲存服務實例的要求
determining whether the remote client device is entitled to receive the requested stored service instance; and 判斷是否該遠端客戶裝置有權限接收其所要求之被儲存服務實例
responsive to determining the remote client device is entitled to receive the requested stored service instance, transmitting the requested service instance from the communications device to the remote client device. 就判定該遠端客戶裝置有權限接收被要求之服務實例做出回應，從通訊裝置傳送被要求之服務實例至遠端客戶裝置

Source: 科技政策研究與資訊中心—科技產業資訊室整理，2013/02

表三、專利訴訟案件基本資料：思科(Cisco)及其子公司控告OpenTV等

訴訟名稱	Cisco Systems, Inc. et al v. OpenTV Inc. et al
提告日期	2013年1月18日
原告	Cisco Systems, Inc.Cisco Technology, Inc.NDS Americas Inc.Scientific Atlanta LLC
被告	OpenTV Inc.Nagra USA, Inc.
案號	5:13-cv-00282-EJD
訴訟法院	the U.S. District Court for the Northern District of California
系爭專利	Open TV專利： US 6,307,481 US 6,501,386 US 6,661,347 US 6,703,939 US 6,864,796 US 7,095,331 思科等原告專利： US 7,145,461 US 7,145,461 US 7,505,592
系爭產品	OpenTV Middleware， http://www.nagra.com/dtv/products-and-solutions/client-technologies/opentv-middleware/ (最後瀏覽日：2013/02/07) MediaAccess， http://www.nagra.com/dtv/products-and-solutions/content-protection-and-security/mediaaccess/ (最後瀏覽日：2013/02/07)
訴狀下載

Source: 科技政策研究與資訊中心—科技產業資訊室整理，2013/02