Copy control method and apparatus for a receiving system
First Claim
1. A receiving system composed of a receiving device, a monitor device for displaying an output of said receiving device, and an external recording device to be controlled by said receiving device, said receiving device comprising:
- on-screen display control means for displaying a screen corresponding to various setting states and arranging items on said screen;
external device control means for setting an operation of said external recording device;
control means for, when a recording input is given,determining whether or not a program being received is copy protected on the basis of Entitlement Control Message (ECM) data and Entitlement Management Message (EMM) data,setting said external recording device to a recording state if said program is initially found not copy protected,disabling control of said external recording device if said program is found copy protected before recording said received program onto said external recording device, andwherein said control means performs a stop input control function corresponding to a selected state upon the instance the recording input is given;
whereby said external recording device is prevented from recording received copy protected programs, anddetermining means for determining if said program is recordable based on said Entitlement Control Message (ECM) data and said Entitlement Management Message (EMM) data,wherein said Entitlement Control Message (ECM) data and said Entitlement Management Message (EMM) data and descramble key data are simultaneously supplied to a descrambler.
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Accused Products
Abstract
The present invention enhances user friendliness of a system which is controlled by use of on-screen display by disabling the operation of these devices if it not permitted. According to the invention, when a recording of a received program is attempted, the program is checked for copy protection. If the program is found copy protected, a warning thereof is displayed and control of a recording/reproducing device concerned is disabled. This warning display allows the user to determine whether or not a program being received is copy protected beforehand, thereby preventing the video signal containing a copy protection control signal from being recorded on the recording/reproducing device. In addition, according to the invention, when a record button is pressed, it becomes a record stop button, being put in the selected state. This further enhances the user friendliness.
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Citations
18 Claims
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1. A receiving system composed of a receiving device, a monitor device for displaying an output of said receiving device, and an external recording device to be controlled by said receiving device, said receiving device comprising:
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on-screen display control means for displaying a screen corresponding to various setting states and arranging items on said screen; external device control means for setting an operation of said external recording device; control means for, when a recording input is given, determining whether or not a program being received is copy protected on the basis of Entitlement Control Message (ECM) data and Entitlement Management Message (EMM) data, setting said external recording device to a recording state if said program is initially found not copy protected, disabling control of said external recording device if said program is found copy protected before recording said received program onto said external recording device, and wherein said control means performs a stop input control function corresponding to a selected state upon the instance the recording input is given; whereby said external recording device is prevented from recording received copy protected programs, and determining means for determining if said program is recordable based on said Entitlement Control Message (ECM) data and said Entitlement Management Message (EMM) data, wherein said Entitlement Control Message (ECM) data and said Entitlement Management Message (EMM) data and descramble key data are simultaneously supplied to a descrambler. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A receiving apparatus comprising:
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on-screen display control means for displaying a screen corresponding to various setting states and arranging items on said screen; external device control means for setting an operation of an external recording device; and control means for, when a recording input is given, determining whether or not a program being received is copy protected on the basis of Entitlement Control Message (ECM) data and Entitlement Management Message (EMM) data, setting said external recording device to a recording state if said program is initially found not copy protected, disabling control of said external recording device if said program is found copy protected before recording said received program onto said external recording device, wherein said control means performs a stop input control function corresponding to a selected state upon the instance the recording input is given; whereby said external recording device is prevented from recording received copy protected programs; and determining means for determining if said program is recordable based on said Entitlement Control Message (ECM) data and said Entitlement Management Message (EMM) data, wherein said Entitlement Control Message (ECM) data and said Entitlement Management Message (EMM) data and descramble key data are simultaneously supplied to a descrambler. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A control method for controlling a receiving system composed of a receiving device, a monitor device for displaying an output of said receiving device, and an external recording device to be controlled by said receiving device, wherein said method comprises the steps of:
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setting said external recording device to a recording state, when a recording input is given, whether or not a program being received is copy protected on the basis of Entitlement Control Message (ECM) data and Entitlement Management Message (EMM) data, if said program is found not copy protected, disabling control of said external recording device if said program is found copy protected before recording said received program onto said external recording device; setting a selected state upon the instance the recording input is given which acts as a stop input for subsequent control; whereby said external recording device is prevented from recording received copy protected programs; determining if said program is recordable based on said Entitlement Control Message (ECM) data and said Entitlement Management Message (EMM) data; and simultaneously supplying said Entitlement Control Message (ECM) data and said Entitlement Management Message (EMM) data and descramble key data to a descrambler. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification