Cited in | International search | Type: | Patent literature | Publication No.: | JPS5971028
[A] ; | Type: | Patent literature | Publication No.: | EP0602659
[A] (CSELT CENTRO STUDI LAB TELECOM [IT]) [A] 1,5 * abstract ** column 2, line 42 - column 3, line 2 *; | Type: | Patent literature | Publication No.: | US5781327
[DA] (BROCK JOHN C [US], et al) [DA] 1-4,6-8,15-17 * abstract * * column 2, line 28 - line 43 * * column 4, line 13 - line 47 * * column 5, line 12 - line 30 * * figures 1,5 * | Type: | Non-patent literature | Publication information: | [A] - PATENT ABSTRACTS OF JAPAN, (19840817), vol. 008, no. 179, Database accession no. (P - 295), & JP59071028 A 19840421 (NIPPON DENKI KK) [A] 9-14 * abstract * |