2005 年第 2 回知的財産翻訳検定
電気電子工学分野標準解答
問題：下に掲載した課題文中の二つの指定箇所（＊＊＊START＊＊＊から＊＊＊END＊＊＊まで）を翻訳しなさい。なお、二つの翻訳の順序は指定箇所の順序通りとするが、それぞれ米国特許明細書に使用することを前提とした翻訳とすること。
＊＊＊START＊＊＊【特許請求の範囲】

What is claimed is1:

１．入力データに対して冗長性を付加 1. A cryptography2 communication apparatus3, comprising4:
して誤り訂正符号化を行う誤り訂正符

cryptography recording means5 including6

号化手段と、該誤り訂正符号化手段のerror-correction7 coding8 means for

出力データを一定のビット数ごとにあ performing9 error-correction coding8 on input data by
らかじめ指定された規則に従い並べ換 adding redundancy thereto10,interleaving11 means for arranging12 data

えて出力するインターリーブ手段と、該インターリーブ手段の出力データの output from13 the error-correction coding means by sorting14
内容を秘匿するために該インターリー every predetermined number15 of bits in accordance with16 a
ブ手段の出力データを暗号化する暗号 predefined17 rule18 and outputting the sorted data, andencrypting19 means for encrypting20 the sorted化手段とを備えた暗号記録手段と、任意の記録媒体より再生される上記 data output from the interleaving means to conceal21
暗号記録手段の出力データを入力デー contents22 of the sorted data; andタとし、該入力データに対する暗号化

cryptography reproducing23 means including
decrypting24 means for receiving25 as inputを解除する復号化手段と、該復号化手段の出力データの上記インターリーブ data the encrypted data output from26 the cryptography
手段によるデータの並べ換えを元の順 recording means and reproduced from an arbitrary
序に復元するために、上記復号化手段 recording medium27 and decrypting the encrypted data28,
deinterleaving29 means for rearranging29 theの出力データを一定のビット数ごとにあらかじめ指定された規則に従い並べ data output from the decrypting means by sorting every
換えて出力するデインターリーブ手段 predetermined number of bits in accordance with a30と、該デインターリーブ手段の出力デ predefined rule in order to restore31 the original order of theータを入力データとし、上記誤り訂正 data sorted by the interleaving means, anderror-correction decoding32 means for

符号化手段により付加された冗長性をもとに上記入力データ中の誤ったデー receiving as input data the rearranged data output from the
タを訂正する誤り訂正復号手段とを備 deinterleaving means and correcting incorrect33 data in the
えた暗号再生手段とを備えたことを特 input data on the basis of34 the redundancy added by the徴とする暗号通信装置。

error-correction coding means.

1

We claim, I claim, What we claim is, What I claim is, etc.

2cipher (or cypher), cryptographic, encryption,3

device, unit, etc.

1

4which comprises

5means + function: cryptography recording means; alternatives include: cipher recorder, cipher recording unit/device;

cryptography/cryptographic/cipher recording means/unit/device, cryptographic recorder etc. (similarly elsewhere formeans + function)
6

having7

error correction

8

processing

9

for executing, for carrying out, that performs, that carries out, that executes etc. (similarly elsewhere)10

by adding redundancy to input data

11

arranging, data arranging, sorting, data sorting etc

12sorting, ordering

13

output data of (similarly elsewhere), data outputted from (similarly elsewhere)14

arranging15

certain, specific, predecided

16

according to, on the basis of

17

specific, certain, predetermined18

algorithm, formula19

enciphering, encyphering, encipherment, encryption, encoding

20

enciphering, encyphering

21

hide

22

content, the content

23

recovery, reproduction

24

deciphering, deciphering, decipherment, decryption, decoding

25

accepting26

encrypted output data of, enciphered output data of, output data of, data output from27

a recording medium, an arbitrary storage medium, a storage medium

28

performing/carrying out/executing decryption/deciperment thereof29

re-sorting, rearranging

30

another31

recover

32

processing

33

false, erroneous34

by means of, using, with, utilizing

2２．上記暗号記録手段の各手段及び上 2. The cryptography communication apparatus according to記暗号再生手段の各手段は、それぞれ Claim 1, further comprising:
鍵情報発生手段により動作のための情

key information35 generating36 means for

報が与えられることを特徴とする特許 generating36 key information37 for each means of38 the請求の範囲第１項記載の暗号通信装 cryptography recording means, and each means of39 the置。

cryptography reproducing means.

＊＊＊END＊＊＊
35

key

36

producing

37

a key

38

for each of the error-correction coding means, the interleaving means, and the encrypting means

39

each of the decrypting means, the deinterleaving means, and the error-correction decoding means

3

＊＊＊START＊＊＊
暗号再生手段においては、上記暗号In the cryptography reproducing means, the

記録手段からの出力データが復号化手 decrypting means 5 decrypts the data output from the段５により復号される。そして該復号 cryptography recording means40. Then, the deinterleaving
化手段５の出力データ中の上記任意の means 6 converts41 serial42 errors that remain43 in the data
記録媒体において起こったデータの誤 decrypted by44 the decrypting means 5 due to the presence
りによる連続的な誤りは、デインター of45 false46 data in the encrypted data recorded on the
リーブ手段６により擬似的なランダム arbitrary recording medium into pseudo-random47 errors.
誤りに変換される。第３図（ａ），（ｂ）， FIGs. 3A, 3B, and 3C illustrate this process48. More（ｃ）はこの様子を示したものである。 specifically49, assuming that the encrypting means 3 and the
ここで仮に、暗号化手段３及び復号化 decrypting means 5 operate as block cryptography means,
手段５がブロック暗号であるとする when an error occurs50 in data to be input to51 the decryptingと、復号化手段５の入力データに、記 means 5 during reproduction of the data52 from the recording
録媒体より再生される過程で誤りが発 medium, the error that occurred during input of the data
生した場合、第３図（ａ）の１３にお appears as a serial error in a block Bi in output data 13, as
けるＢｉブロックに示すように、入力 indicated in FIG. 3A. In a memory configuration of a matrix
中に誤りの発生したブロックは連続的 1453, as shown in FIG. 3B, the deinterleaving means 6 isに誤りが発生する。デインターリーブ configured to sequentially write data54 in rows55 on a手段６を、第３図（ｂ）の１４に示す writing56 side in a direction of increasing column number57,
行列によるメモリ構成において、書き proceeding58 sequentially from row to row59 in a direction of
込み側は行中の列方向に順次書き込み increasing row number60, and to sequentially read data61を行い順次行を進め、読み出し側は列 from columns62 on a reading63 side in a direction of increasing
中の行方向に読み出しを行い順次列を row number, proceeding sequentially from column to進めていく方式のものとすると、上記 column64 in a direction of increasing column number. The
誤りの発生したブロックＢｉはデイン above-described block Bi having the error is written in an ith
ターリーブ手段６のメモリ中の第ｉ行 row of the memory of the deinterleaving means 6 and, on theに書き込まれ、読み出し側では上記誤 reading side, the data of the block Bi having the error
りの発生したブロックＢｉのデータは appears in an ith bit in each of the columns (i.e., Pj,i 16 in Pj
各列の各々ｉ番目のビットに分散して 15 shown in FIG. 3C). In this way65, the block including serial
現われる。
（第３図（ｃ）におけるＰｊ errors generated in the data output from the decrypting
１５中のＰｊ,ｉ１６）。このように、 means 5 is dispersed by the deinterleaving means so that the
復号化手段５の出力データ中の連続的 errors in the data output from the deinterleaving means 6
な誤りの存在するブロックは、デイン are substantially randomized66.
ターリーブ手段６により分散され、デインターリーブ手段６の出力では誤ったデータはランダム誤りに近い状態となることとなる。
＊＊＊END＊＊＊
40

Passive form: the data output from the cryptography recording means is decrypted by the decrypting means 54

(Similarly throughout)41

changes, alters

42

continuous, consecutive

43

remaining44

the decrypted output data of, the output data of, the (decrypted) data output/outputted from45

attributable to, corresponding to46

incorrect, erroneous

47

pseudorandom

48

operation, conversion process49

precisely

50

in the event of the occurrence of an error

51

the input data of

52

when the data is reproduced

53In a memory configured to operate in a matrix format, as denoted by reference numeral 14, In a memory having aconfiguration of a matrix 14, In a memory having a configuration of a matrix, as denoted by reference numeral 14
54

sequentially writes data, sequentially performs data writing

55

each row

56

data writing57

an increasing-column-number direction

58

moving59

between rows

60

an increasing-row-number direction

61

sequentially reads data, sequentially performs data reading

62

each column

63data reading

64

between columns

65Accordingly, Thus, Thereby

66

made random5