US3624427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse transmission device integrated in a semiconductor body
Assignee: US Philips Corp
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Filing: 1970-03-13
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Granted: 1971-11-30
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Expires: 1990-03-13
Abstract
Abstract A pulse transmission device integrated in a semiconductor body comprising an output filter is formed from a shift register having a number of shift register elements which are coupled to a combination device through respective attenuation networks. Each shift register element and its respective attenuation network is formed as a topologic unit with the topologic units distributed in parallel rows. Various connections are made through tracks. The use of topologic units minimizes mutual cross talk phenomena both capacitive and galvanic in nature.
Inventors
- 👤 Eise Carel Dijkmans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:20
CPC Classifications
H; H03; H03H; H03H17/00; H03H17/02; H03H17/0223; H03H17/0233; H03H17/0236; H03H17/06; H03K; H03K5/00; H04; H04L; H04L25/00; H04L25/02; H04L25/03; H04L25/03006; H04L25/03012; H04L25/03114; H04L25/03133; H10; H10D; H10D84/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
27 words
A device as claimed in claim 1, wherein the combination device is provided near the center of the combination track which is common for all attenuation networks.
Claim 2
Dependent Claim
25 words
A device as claimed in claim 1, wherein the bistable triggers incorporated in the topologic units are formed with selection gates of the emitter-coupled type.
Claim 3
Dependent Claim
42 words
A device as claimed in claim 1, wherein the quantity determined by the ratio of the surfaces of the sides of the shift frequency track and the combination track near each other to their mutual distance is smaller than 2.106 Mu m.
Claim 4
Dependent Claim
53 words
A device as claimed in claim 1, wherein the different elements of the transmission device are formed with a common structural element including at least two transistors the emitter electrodes of which are connected together, the base electrode of one of the transistors being connected to the collector electrodes of the other transistors.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |