US5539787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Converter for connecting modem equipment of dissimilar interface protocol
Assignee: Sharp Corp
•
Filing: 1993-07-06
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Granted: 1996-07-23
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Expires: 2013-07-06
Abstract
Abstract A converter which is connected to a modulation/demodulation equipment having a first interface and to a terminal equipment having a second interface is disclosed. The converter includes a first connector for electrically connecting the converter to the modulation/demodulation equipment; a second connector for electrically connecting the converter to the terminal equipment; a signal converting circuit connected to the first connector and the second connector, for converting a signal input from the first connector into a signal which follows the second interface, the converted signal being output to the second connector, and for converting a signal input from the second connector into a signal which follows the first interface, the converted signal being output to the first connector; and a power supply circuit for supplying power to the modulation/demodulation equipment via the first connector.
Inventors
- 👤 Takahiko Nakano
- 👤 Yuuji Nishiwaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:04
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/38; G06F13/382; G06F13/385
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
146 words
A converter which is connected to modulation/demodulation equipment having a first interface and to terminal equipment having a second interface, the converter comprising: first connection means for electrically connecting the converter to said modulation/demodulation equipment; second connection means for electrically connecting the converter to said terminal equipment; signal conversion means, connected to said first connection means and said second connection means, for converting a first signal input from said first connection means into a first converted signal which is compatible with said second interface and outputting said first converted signal to said second connection means and for converting a second signal input from said second connection means into a second converted signal which is compatible with said first interface and outputting said second converted signal to said first connection means; and power supply means for supplying power to said modulation/demodulation equipment via said first connection means.
Claim 2
Dependent Claim
146 words
A converter which is connected to modulation/demodulation equipment having a first interface and to terminal equipment having a second interface, the converter comprising: first connection means for electrically connecting the converter to said modulation/demodulation equipment; second connection means for electrically connecting the converter to said terminal equipment; signal conversion means, connected to said first connection means and said second connection means, for converting a first signal input from said first connection means into a first converted signal which is compatible with said second interface and outputting said first converted signal to said second connection means and for converting a second signal input from said second connection means into a second converted signal which is compatible with said first interface and outputting said second converted signal to said first connection means; and power supply means for supplying power to said modulation/demodulation equipment via said first connection means.
Claim 3
Dependent Claim
17 words
The converter according to claim 1, wherein said first interface is an interface dedicated to card-type equipment.
Claim 4
Dependent Claim
20 words
The converter according to claim 2, wherein said first interface is based on the Japan Electronic Industry Development Association standard.
Claim 5
Dependent Claim
42 words
The converter according to claim 1, wherein said first interface is based on the RS-232C standard regarding electrical connection and timing for inputting/outputting a signal and is not based on the RS-232C standard regarding physical connector shape and range of operating voltage.
Claim 6
Dependent Claim
16 words
The converter according to claim 1, wherein said second interface is based on the RS-232C standard.
Claim 7
Dependent Claim
17 words
The converter according to claim 1, wherein said converter receives a power signal from an external source.
Claim 8
Dependent Claim
14 words
The converter according to claim 6, where said external source is said terminal equipment.
Claim 9
Dependent Claim
18 words
The converter according to claim 6, wherein said converter receives said power signal via said second connection means.
Claim 10
Dependent Claim
15 words
The converter according to claim 1, wherein said power supply means includes a DC--DC converter.
Claim 11
Dependent Claim
42 words
The converter according to claim 1, wherein said power supply means is a self-contained power source housed on the converter, said self-contained power source producing a voltage signal and supplying the voltage signal to said modulation/demodulation equipment via said first connection means.
Claim 12
Dependent Claim
29 words
The converter according to claim 1, wherein said power supply means produces a voltage signal and supplies the voltage signal to said modulation/demodulation equipment via said first connection means.
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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) | 1999-07-23 | 2000-01-22 | 2000-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-23 | 2004-01-22 | 2004-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-23 | 2008-01-22 | 2008-07-23 | $7700.00 | Window Closed / Lapsed |