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1. 发明授权

US4196310A Secure SCA broadcasting system including subscriber actuated portable receiving terminals 失效
标题翻译：安全的SCA广播系统，包括用户激活的便携式接收终端
公开(公告)号：US4196310A
公开(公告)日：1980-04-01
申请号：US848269
申请日：1977-11-03
申请人： Aubry S. Forman , Charles A. Schultz, Jr. , John F. Schultz
发明人： Aubry S. Forman , Charles A. Schultz, Jr. , John F. Schultz
IPC分类号： H04H20/34 , H04H40/18 , H04H60/27 , H04L12/18
CPC分类号： H04H20/34 , H04H40/18 , H04H60/27 , H04L12/1804
摘要： A secure information broadcasting system including a central transmitting station for encoding data in binary form utilizing a keyword and transmitting a FM-SCA signal phase shift modulated by the encoded data. Each of a plurality of portable receiving terminals has an identification number stored therein. When a subscriber desires to display the broadcast information on his terminal, he enters a unique password which is combined with the identification number to generate the keyword. The keyword is utilized to decode the received binary data. The portable terminal includes a receiver for decoding the phase shifted FM-SCA signal into the encoded binary data; a keyboard for entering the password, information and display commands; an alpha-numeric data display; a processor responsive to the inputs from the receiver and the keyboard for performing selected arithmetic and logic operations to generate output data to the data display and a bus connecting the circuits of the portable terminal for parallel signal flow.
摘要翻译：一种安全信息广播系统，包括用于利用关键字对二进制形式的数据进行编码并发送由编码数据调制的FM-SCA信号相移的中央发送站。多个便携式接收终端中的每一个具有存储在其中的识别号。当用户希望在他的终端上显示广播信息时，他输入一个与识别号码相组合的唯一密码，以产生该关键词。该关键字用于解码所接收的二进制数据。便携式终端包括用于将相移的FM-SCA信号解码为编码的二进制数据的接收器; 用于输入密码的键盘，信息和显示命令; 字母数字数据显示; 响应于来自接收器和键盘的输入的处理器，用于执行所选择的算术和逻辑运算以产生到数据显示器的输出数据和连接便携式终端的电路以用于并行信号流的总线。

2. 发明授权

US4112369A Secure SCA broadcasting system including subscriber actuated portable receiving terminals 失效
标题翻译：安全的SCA广播系统，包括用户激活的便携式接收终端
公开(公告)号：US4112369A
公开(公告)日：1978-09-05
申请号：US675504
申请日：1976-04-09
申请人： Aubry S. Forman , Charles A. Schultz , John F. Schultz
发明人： Aubry S. Forman , Charles A. Schultz , John F. Schultz
IPC分类号： H04H20/34 , H04H60/68 , H04J99/00 , H04L12/18 , H04K1/00
CPC分类号： H04L12/1804 , H04H20/34 , H04H60/68
摘要： A secure information broadcasting system including a central transmitting station for encoding data in binary form utilizing a keyword and transmitting a FM-SCA signal phase shift modulated by the encoded data. Each of a plurality of portable receiving terminals has an identification number stored therein. When a subscriber desires to display the broadcast information on his terminal, he enters a unique password which is combined with the identification number to generate the keyword. The keyword is utilized to decode the received binary data. The portable terminal includes a receiver for decoding the phase shifted FM-SCA signal into the encoded binary data; a keyboard for entering the password, information and display commands; an alpha-numeric data display; a processor responsive to the inputs from the receiver and the keyboard for performing selected arithmetic and logic operations to generate output data to the data display and a bus connecting the circuits of the portable terminal for parallel signal flow.
摘要翻译：一种安全信息广播系统，包括用于利用关键字对二进制形式的数据进行编码并发送由编码数据调制的FM-SCA信号相移的中央发送站。多个便携式接收终端中的每一个具有存储在其中的识别号。当用户希望在他的终端上显示广播信息时，他输入一个与识别号码相组合的唯一密码，以产生该关键词。该关键字用于解码所接收的二进制数据。便携式终端包括用于将相移的FM-SCA信号解码为编码的二进制数据的接收器; 用于输入密码的键盘，信息和显示命令; 字母数字数据显示; 响应于来自接收器和键盘的输入的处理器，用于执行所选择的算术和逻辑运算以产生到数据显示器的输出数据和连接便携式终端的电路以用于并行信号流的总线。

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