Refine My Results

Creation Date 

1. Before 1971  (20)
2. 1971 To 1985  (28)
3. 1986 To 1997  (271)
4. 1998 To 2010  (132)
5. After 2010  (134)
6. More options 

New Records 

1. New From Last Month  (4)
2. More options 

Resource Type 

1. Patents  (583)
2. magazinearticle  (1)
3. More options 

Subject 

1. Electric Communication Technique  (422)
2. Pictorial Communication, E.G. Television  (311)
3. Physics  (227)
4. Calculating  (127)
5. Computing  (127)
6. Counting  (127)
7. Basic Electric Elements  (117)
8. Transmission Of Digital Information, E.G. Telegraphiccommunication  (101)
9. Information Storage  (65)
10. Image Data Processing Or Generation, In General  (64)
11. Optics  (60)
12. Optical Elements, Systems, Or Apparatus  (60)
13. Semiconductor Devices  (59)
14. Electric Solid State Devices Not Otherwise Provided For  (59)
15. Information Storage Based On Relative Movement Between Recordcarrier And Transducer  (58)
16. Wireless Communications Networks  (45)
17. Electric Digital Data Processing  (45)
18. Accessories Therefor  (38)
19. Apparatus Or Arrangements Employing Analogous Techniques Usingwaves Other Than Optical Waves  (38)
20. More options 

Databases 

1. esp@cenet  (583)
2. ProQuest Central  (1)
3. More options 

Language 

1. English  (534)
2. French  (122)
3. German  (110)
4. Danish  (7)
5. Portuguese  (7)
6. Spanish  (7)
7. Japanese  (4)
8. Polish  (3)
9. Chinese  (3)
10. Hungarian  (2)
11. Ukrainian  (2)
12. Russian  (1)
13. Slovenian  (1)
14. Croatian  (1)
15. More options