CN1224249C - 电视万维网接收装置及其控制方法 - Google Patents

电视万维网接收装置及其控制方法 Download PDF

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CN1224249C
CN1224249C CNB031248896A CN03124889A CN1224249C CN 1224249 C CN1224249 C CN 1224249C CN B031248896 A CNB031248896 A CN B031248896A CN 03124889 A CN03124889 A CN 03124889A CN 1224249 C CN1224249 C CN 1224249C
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卢永中
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Samsung Electronics Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0882—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of character code signals, e.g. for teletext
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H—ELECTRICITY
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/4263—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4331—Caching operations, e.g. of an advertisement for later insertion during playback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
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    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
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    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
    • H04N21/4782—Web browsing, e.g. WebTV
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/488—Data services, e.g. news ticker
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/488—Data services, e.g. news ticker
    • H04N21/4882—Data services, e.g. news ticker for displaying messages, e.g. warnings, reminders

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Abstract

一种电视万维网接收装置及其控制方法。在一种用于在显示单元的屏幕上有选择地显示由主调谐器和辅助调谐器接收的广播信号和电视万维网信号的电视万维网接收装置中，该主调谐器用于调谐其中存在广播信号的频道，该辅助调谐器用于有选择地调谐包括电视万维网信号的频道，该装置包括：输入单元，输入至广播模式或电视万维网模式的模式转换命令；存储单元，存储经辅助调谐器接收的电视万维网信息；控制单元，用于在电视万维网模式中显示由辅助调谐器调谐的电视万维网信息的同时，当电视万维网接收装置通过输入单元接收至广播模式的模式转换命令时，控制在显示单元上显示由主调谐器调谐的广播信号并向存储单元下载由辅助调谐器调谐的电视万维网信息。

Description

电视万维网接收装置及其控制方法
技术领域
本发明涉及一种具有电视万维网能力的电视接收装置，所述装置包括主调谐器和电视万维网解码器。
背景技术
电视万维网是增强的基于图文电视的信息服务，它向用户提供万维网似的体验。就象传统的图文电视的情况一样，可以在电视信号的垂直消隐期间(VBI)和在诸如DVB信号的数字电视信号中运载电视万维网信号。由电视万维网提供的增强包括全色高分辨率图像。
而且，电视万维网通过超链接和菜单系统提供漫游，以向用户提供万维网的体验。
模拟电视万维网的传输是基于图文电视分组31独立数据服务的。在DVB系统中，电视万维网数据被复用到MPEG-2数据流中。
可以从所接收的信号显示电视万维网的电视是公知的。当使用这样的电视时，尤其是在模拟电视的情况下，因为实际的数据率低，经常在转换到电视万维网模式和电视万维网信息被显示之间有相当大的延迟。
而且，电视万维网数据的接收被用户将电视转换出电视万维网模式或改变频道所干扰。因此，当用户返回先前观看的电视万维网信息时，用户必须等待重新下载当前的电视万维网数据。
发明内容
按照本发明的电视接收装置的特征在于一个辅助的独立可调谐调谐器和电视万维网解码器，它们被配置来解码由辅助调谐器接收的电视万维网数据。
优选的是，所述装置包括：电视信号处理装置，用于处理由主调谐器接收的电视信号的声音和画面信号；存储装置。其中在电视信号处理装置正在处理由主调谐器接收的电视信号的声音和画面信号的同时，电视万维网解码器被配置来解码电视万维网数据以及在存储装置中存储所解码的电视万维网数据。
在所附的权利要求3-6中给出了其他的优选和选用特征
附图说明
现在参照附图通过示例说明本发明的实施例，其中：
图1是示出按照本发明的电视万维网接收装置的方框图；
图2是示出通过操作在遥控器上提供的模式选择按键，将电视万维网接收装置从节目显示模式转换到电视万维网模式的过程的流程图；
图3A-3D是示出在接收到转换电视万维网模式的命令时，在控制单元的控制下显示的屏幕的视图；
图4是示出通过操作在遥控器上提供的模式选择按键，将图1的电视万维网接收装置从电视万维网模式转换到节目显示模式的过程的流程图；
图5示出了在接收到转换至节目模式的命令时，在控制单元的控制下显示的屏幕的视图。
具体实施方式
参见图1，电视万维网接收装置100具有：输入单元110、调谐单元120、转换单元130、声音处理单元135、扬声器140、视频处理单元145、显示单元150、电视万维网解码单元155、存储单元160、在屏显示(OSD)处理单元165和控制单元170。
输入单元110被安排在电视万维网接收装置100的机体中，具有多个用于向电视万维网接收装置100输入控制命令的按键。具有多个按键的遥控器115使得用户能够在远处输入控制命令。
输入单元110和/或遥控器115被提供有模式选择按键(未示出)，用于输入模式转换命令，以在节目显示模式和电视万维网模式之间转换电视万维网接收装置。
调谐器单元120包括主调谐器124和辅助调谐器126。
主调谐器124从通过天线122接收的广播信号调谐到用户所选择的频道。
辅助调谐器126当电视万维网接收装置100被转换到电视万维网模式时，在控制单元170的控制下调谐到包括电视万维网信息的频道。即，辅助调谐器126仅仅用于接收电视万维网数据和与主调谐器124无关地操作。
转换单元130在控制单元170的控制下从由主和辅助调谐器124、126输出的复合信号分离画面和声音信号。
声音处理单元135处理由转换单元130输出的声音信号，并且向扬声器140输出被放大的所处理的声音信号。
扬声器140从声音处理单元135输出声音信号以便可以听见它。
视频处理单元145从由转换单元130输出的画面信号分离水平和垂直同步信号和亮度和色差信号，并且输出从亮度信号Y和色差信号得到的红色(R)、绿色(G)和蓝色(B)信号。
显示单元150显示由来自视频处理单元145的亮度信号Y和R、G以及B信号确定的图像。显示单元150可以包括液晶显示器(LCD)，用于显示节目画面和电视万维网信息。
电视万维网解码单元155从所接收的电视信号提取电视万维网数据，解码所提取的电视万维网数据，和向视频处理单元145输出所解码的电视万维网数据。
存储单元160存储一个用于控制电视万维网接收装置100的操作的控制程序。存储单元160也存储来自电视万维网解码单元155的解码的电视万维网数据。
当电视万维网接收装置100响应于在输入单元110或遥控器115上提供的模式选择按键的操作而被转换到电视万维网模式时，OSD处理单元165产生一个OSD菜单信号，并且将其输出到显示单元150。OSD菜单使得用户能够在控制单元170的控制下从由辅助调谐器26调谐到的频道开始捕获电视万维网数据。
OSD处理单元165也在控制单元170的控制下产生电视万维网信息频道列表信号和电视万维网数据捕获——换句话说为“下载”——状态信号，并且将其输出给显示单元150。
控制单元170按照在存储单元160中存储的控制程序来控制电视万维网接收装置100的操作。控制单元170按照经由输入单元110输入的命令信号，控制调谐器单元120、转换单元130、声音处理单元135、图像处理单元145、显示单元150、电视万维网解码单元155、存储单元160和OSD处理单元165。
当电视万维网接收装置100响应于在输入单元110或遥控器115上提供的模式选择按键的操作而被转换到节目显示模式时，控制单元170控制声音处理单元135和视频处理单元145通过扬声器140和显示单元150输出对应的声音和画面信号。
当电视万维网接收装置100响应于在遥控器115上提供的模式选择按键的操作而被转换到电视万维网模式时，在观看节目的同时，显示单元150保持在显示单元150的屏幕上显示节目画面，并且同时使得在由辅助调谐器126调谐到的频道中的电视万维网数据被捕获和发送到存储单元160。
当电视万维网接收装置被转换到电视万维网模式时，不立即显示电视万维网信息，因为在所接收的电视信号的垂直消隐期间(VBI)中电视万维网数据的慢数据率意味着在已经接收到所有必要的电视万维网数据之前有大的延迟。
当所有需要的电视万维网数据已经被捕获和存储在存储单元160中的时候，控制单元170在显示单元150的屏幕上显示与在存储单元160中的所捕获的电视万维网数据相对应的电视万维网信息。如果电视万维网接收装置现在通过在遥控器115上提供的模式选择按键的操作被转换到节目显示模式，则控制单元170使得显示单元150显示正在被主调谐器124接收的节目。
同时，控制单元170输出OSD菜单，它允许用户使用输入单元110或遥控器115来选择是否捕获在由辅助调谐器126调谐到的信号中的电视万维网信息。
现在说明按照本发明的控制电视万维网接收装置的方法。
参见图2，当用户使用输入单元110或遥控器115选择频道‘7’时(参见图3A)。控制单元170控制电视万维网接收装置以便由主调谐器124调谐到频道‘7’，并且在频道‘7’上的当前节目的画面被显示单元150显示，节目音轨(programme sound track)被扬声器140发出(S200)。当显示频道‘7’的画面时，控制单元170确定是否从遥控器115或输入单元110正在接收转换到电视万维网模式的命令(S210)。
如果确定在步骤S210正在接收到转换到电视万维网模式的命令，则控制单元170作用以便在显示单元150的屏幕的预定区域中显示前一个接收和存储的电视万维网信息频道列表，如图3B所示(S220)。在显示电视万维网信息频道列表之后，控制单元170确定是否从输入单元110或遥控器115接收到用于识别所列出的频道之一的选择信号(S230)。
如果确定在S230接收到频道选择信号，则控制单元170作用以便在显示单元150的屏幕上继续显示由主调谐器124调谐到的频道‘7’的节目画面，并且同时在存储单元160中存储来自由辅助调谐器126调谐到的频道中的信号的电视万维网数据(S240)。此处，控制单元170控制OSD处理单元165，以在显示单元150的屏幕的预定区域中显示电视万维网捕获进程，如图3C所示。
控制单元170确定是否已经在存储单元160中存储了足够的电视万维网数据，以便可以在显示单元150的屏幕上显示电视万维网信息(S250)。如果在步骤S250确定可以显示电视万维网信息，则控制单元170在显示单元150的屏幕上显示存储在存储单元160中的电视万维网信息(S260)。因此，用户通过显示单元150的屏幕来观看频道‘9’的广播信号中包括的电视万维网信息，如图3D所示。
参见图4，当电视万维网接收装置100被转换到电视万维网模式时，它从所选择的频道来显示电视万维网信息(S300)。在此，如果使用在输入单元110或遥控器115上的模式选择按键来输入一个命令以将电视万维网接收装置转换为节目显示模式(S310)，则控制单元170使得在显示单元150的屏幕上显示由主调谐器124调谐到的电视信号的画面(S320)。即，显示返回在选择电视万维网模式之前被观看的电视频道的画面。
控制单元170也输出一个OSD菜单信号，用于使得用户能够选择是否继续向显示单元150从由辅助调谐器126调谐到的电视信号捕获电视万维网数据以供显示。如果用户要保持捕获电视万维网数据，则他/她选择“是”，如果用户不要继续捕获电视万维网数据，则他/她选择“否”(S330)。用户使用在遥控器115上提供的光标键(未示出)来选择继续捕获电视万维网数据或结束捕获电视万维网数据。
如果在S330选择“是”，则控制单元170在显示单元150的屏幕上显示由主调谐器124调谐到的电视频道的节目画面，并且继续将来自由辅助调谐器126调谐到的电视频道的电视万维网数据写入存储单元160(S340)。
否则，即如果在步骤S330选择“否”，则控制单元170停止使用辅助调谐器126来捕获电视万维网数据(S350)。
可以将电视万维网数据的捕获设置为默认，以便当电视万维网接收装置100从电视万维网模式被转换到节目显示模式时自动继续捕获电视万维网数据。
在如上所述的电视万维网接收装置和对应的控制方法中，有可能当电视万维网接收装置从电视万维网模式被转换到节目显示模式时，使用辅助调谐器来继续捕获电视万维网数据。因此，转换到电视万维网模式变快，并且电视万维网信息的更新变得可能。

Claims (4)

1.一种电视万维网接收装置，用于在显示单元的屏幕上有选择地显示由主调谐器和辅助调谐器接收的广播信号和电视万维网信号，所述主调谐器用于调谐其中存在广播信号的频道，所述辅助调谐器用于有选择地调谐包括电视万维网信号的频道，所述电视万维网接收装置包括：
输入单元，用于输入至广播模式或电视万维网模式的模式转换命令；
存储单元，用于存储通过辅助调谐器接收的电视万维网信息；
控制单元，用于在电视万维网模式中显示由辅助调谐器调谐的电视万维网信息的同时，当电视万维网接收装置通过输入单元接收至广播模式的模式转换命令时，控制在显示单元上显示由主调谐器调谐的广播信号并且向存储单元下载由辅助调谐器调谐的电视万维网信息。
2.按照权利要求1所述的电视万维网接收装置，还包括：
在屏显示处理单元，用于输出在屏显示菜单，所述在屏显示菜单用于当接收到至广播模式的模式转换命令时，允许用户选择是否下载由辅助调谐器调谐的电视万维网信息。
3.一种控制电视万维网接收装置的方法，所述电视万维网接收装置用于在显示单元的屏幕上有选择地显示由主调谐器和辅助调谐器接收的广播信号和电视万维网信号，所述主调谐器用于调谐其中存在广播信号的频道，所述辅助调谐器用于有选择地调谐包括电视万维网信号的频道，所述方法包括步骤：
当接收到至电视万维网模式的转换命令时，在显示单元的屏幕上显示由辅助调谐器调谐的电视万维网信息；
在显示单元的屏幕上显示电视万维网信息的同时，当电视万维网接收装置接收至广播模式的模式转换命令以显示广播信号时，控制在显示单元的屏幕上显示由主调谐器调谐的广播信号并且向存储介质下载由辅助调谐器调谐的电视万维网信息。
4.按照权利要求3所述的控制电视万维网接收装置的方法，还包括步骤：输出在屏显示菜单，所述在屏显示菜单用于当接收到至广播模式的模式转换命令时，允许用户选择是否下载由辅助调谐器调谐的电视万维网信息。
CNB031248896A 2002-09-30 2003-09-29 电视万维网接收装置及其控制方法 Expired - Fee Related CN1224249C (zh)

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