JP2006128963A5 - - Google Patents

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JP2006128963A5
JP2006128963A5 JP2004313214A JP2004313214A JP2006128963A5 JP 2006128963 A5 JP2006128963 A5 JP 2006128963A5 JP 2004313214 A JP2004313214 A JP 2004313214A JP 2004313214 A JP2004313214 A JP 2004313214A JP 2006128963 A5 JP2006128963 A5 JP 2006128963A5
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digital signal
circuit
input
signal processing
compressed
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JP2004313214A
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Japanese (ja)
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JP2006128963A (en
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Priority to JP2004313214A priority Critical patent/JP2006128963A/en
Priority claimed from JP2004313214A external-priority patent/JP2006128963A/en
Publication of JP2006128963A publication Critical patent/JP2006128963A/en
Publication of JP2006128963A5 publication Critical patent/JP2006128963A5/ja
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Claims (10)

第1のデジタル信号を再生する再生回路と、
第2のデジタル信号を無線で入力する無線入力回路と、
前記第1又は第2のデジタル信号から著作権管理情報を検出する著作権管理情報検出回路と、
前記検出された著作権管理情報を前記第1又は第2のデジタル信号に付加して他の機器へ出力する出力回路と、
を備えたことを特徴とするデジタル信号処理装置。 A reproduction circuit for reproducing the first digital signal;
A wireless input circuit that wirelessly inputs a second digital signal;
A copyright management information detection circuit for detecting copyright management information from the first or second digital signal;
An output circuit for adding the detected copyright management information to the first or second digital signal and outputting it to another device;
A digital signal processing apparatus comprising: 請求項１記載のデジタル信号処理装置において、
前記再生回路により再生された第1のデジタル信号又は前記無線入力回路により入力された第2のデジタル信号を選択する選択回路を備え、
前記著作権情報検出回路は、前記選択回路で選択されたデジタル信号から著作権管理情報を検出することを特徴とするデジタル信号処理装置。 The digital signal processing apparatus according to claim 1.
A selection circuit for selecting the first digital signal reproduced by the reproduction circuit or the second digital signal inputted by the wireless input circuit;
The digital signal processing apparatus, wherein the copyright information detection circuit detects copyright management information from the digital signal selected by the selection circuit . 第1の圧縮デジタル信号を再生する再生回路と、
第2の圧縮デジタル信号を無線で入力する無線入力回路と、
前記再生回路により再生された第1の圧縮デジタル信号又は前記無線入力回路により入力された第2の圧縮デジタル信号を選択する選択回路と、
前記選択された圧縮デジタル信号から著作権管理情報を検出する著作権管理情報検出回路と、
前記選択された圧縮デジタル信号を伸張する伸張回路と、
前記伸張されたデジタル信号に前記検出された著作権管理情報を付加して他の機器へ出力する出力回路と、
を備えたことを特徴とするデジタル信号処理装置。 A reproduction circuit for reproducing the first compressed digital signal;
A wireless input circuit for wirelessly inputting a second compressed digital signal;
A selection circuit for selecting the first compressed digital signal reproduced by the reproduction circuit or the second compressed digital signal inputted by the wireless input circuit;
A copyright management information detection circuit for detecting copyright management information from the selected compressed digital signal;
A decompression circuit for decompressing the selected compressed digital signal;
An output circuit for adding the detected copyright management information to the decompressed digital signal and outputting it to another device;
A digital signal processing apparatus comprising: 請求項３記載のデジタル信号処理装置において、
前記伸張されたデジタル信号に前記検出された著作権管理情報を付加して他の機器へ出力するとともに前記他の機器からの入力も可能にする入出力回路を備えたことを特徴とするデジタル信号処理装置。 The digital signal processing device according to claim 3.
A digital signal comprising: an input / output circuit that adds the detected copyright management information to the decompressed digital signal and outputs it to another device and also allows input from the other device Processing equipment. 請求項４記載のデジタル信号処理装置において、
前記入出力回路より入力された前記他の機器からの入力信号は、前記伸張回路によって伸張されるデジタル信号の画素数又はフレームレートを前記他の機器に対応するように前記伸張回路を自動制御することを特徴とするデジタル信号処理装置。 The digital signal processing device according to claim 4.
The input signal from the other device input from the input / output circuit automatically controls the expansion circuit so that the number of pixels or the frame rate of the digital signal expanded by the expansion circuit corresponds to the other device. A digital signal processing device. 請求項３記載のデジタル信号処理装置において、
前記再生された第１の圧縮デジタル信号は、暗号化されており、
前記入力された第２の圧縮デジタル信号は、暗号化されており、
前記再生回路により再生された、暗号化された第１の圧縮デジタル信号の暗号を復号化する第１の信号処理回路と、
前記無線入力回路により入力された、暗号化された第２の圧縮デジタル信号の暗号を復号化する第２の信号処理回路と、を備え、
前記選択回路は、前記第１の信号処理回路又は前記第２の信号処理回路により暗号を復号化された第１の圧縮デジタル信号又は第２の圧縮デジタル信号の、一方の圧縮デジタル信号を選択することを特徴とするデジタル信号処理装置。 The digital signal processing device according to claim 3.
The first compressed digital signal the reproduction is encrypted,
The second compressed digital signal the input is encrypted,
A first signal processing circuit for decrypting a cipher of the encrypted first compressed digital signal reproduced by the reproduction circuit;
A second signal processing circuit for decrypting an encrypted second compressed digital signal input by the wireless input circuit,
The selection circuit selects the first signal processing circuit or the first compressed digital signal or the second compressed digital signal decoded encryption by the second signal processing circuit, one of the compressed digital signal A digital signal processing device. 請求項１乃至６記載のデジタル信号処理装置であって、
前記デジタル信号処理装置はホームネットワークの中継装置として用いられることを特徴とするデジタル信号処理装置。 A digital signal processing apparatus according to claim 1 to 6, wherein,
The digital signal processing device is used as a relay device of a home network. 暗号化された圧縮デジタル映像信号の入力手段と、Means for inputting an encrypted compressed digital video signal;
該入力された、暗号化された圧縮デジタル映像信号を解読する暗号解読手段と、Decryption means for decrypting the input compressed compressed digital video signal;
該解読された圧縮デジタル映像信号を伸長する伸長手段と、Decompression means for decompressing the decrypted compressed digital video signal;
該伸長されたデジタル映像信号を暗号化する暗号化手段と、Encryption means for encrypting the expanded digital video signal;
前記伸長手段で伸長されたデジタル映像信号の画素数を制限する解像度制限手段と、Resolution limiting means for limiting the number of pixels of the digital video signal expanded by the expansion means;
前記伸長手段で伸長されたデジタル映像信号を出力する出力手段とを有し、Output means for outputting the digital video signal expanded by the expansion means,
前記解像度制限手段で画素数を制限された伸長されたデジタル映像信号を出力する場合には暗号化せずに、画素数を制限されることなく伸長されたデジタル映像信号を出力する場合には暗号化して前記出力手段から出力することを特徴とするデジタル信号処理装置。When outputting the expanded digital video signal with the number of pixels limited by the resolution limiting means, the encryption is not performed when outputting the expanded digital video signal without limiting the number of pixels. And outputting from the output means. 前記入力手段は無線伝送された、暗号化された圧縮デジタル映像信号を受信する機能を有することを特徴とする請求項８記載のデジタル信号処理装置。9. The digital signal processing apparatus according to claim 8, wherein said input means has a function of receiving an encrypted compressed digital video signal transmitted wirelessly. 前記入力手段から入力された暗号化された圧縮デジタル映像信号は蓄積媒体より再生されたことを特徴とする請求項８記載のデジタル信号処理装置。9. The digital signal processing apparatus according to claim 8, wherein the encrypted compressed digital video signal input from the input means is reproduced from a storage medium.
JP2004313214A 2004-10-28 2004-10-28 Digital signal processing device Pending JP2006128963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004313214A JP2006128963A (en) 2004-10-28 2004-10-28 Digital signal processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004313214A JP2006128963A (en) 2004-10-28 2004-10-28 Digital signal processing device

Publications (2)

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JP2006128963A JP2006128963A (en) 2006-05-18
JP2006128963A5 true JP2006128963A5 (en) 2007-06-14

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007334956A (en) * 2006-06-13 2007-12-27 Toshiba Corp Video recording device and information display method
JP2008072419A (en) * 2006-09-14 2008-03-27 Sharp Corp Av equipment connection device, television receiver and av system
JP2008159238A (en) * 2006-11-30 2008-07-10 Matsushita Electric Ind Co Ltd Voice data transmitting device and voice data receiving device
US8744081B2 (en) * 2007-03-22 2014-06-03 Qualcomm Incorporated System and method for implementing content protection in a wireless digital system
JP4561893B2 (en) 2008-07-11 2010-10-13 ソニー株式会社 Data transmitting apparatus, data receiving apparatus, data transmitting method and data receiving method
JP5261050B2 (en) * 2008-07-15 2013-08-14 日本電気株式会社 IP streaming copy control method and system

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DE60044110D1 (en) * 1999-01-21 2010-05-20 Sony Corp DEVICE AND METHOD FOR PROCESSING DATA
JP4474062B2 (en) * 2001-02-28 2010-06-02 日立コンシューマエレクトロニクス株式会社 Video information receiving apparatus, video information receiving method, and video information transmitting / receiving method
WO2003081499A1 (en) * 2002-03-22 2003-10-02 Hitachi, Ltd. License management method and license management apparatus

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