Number | Name | Date | Kind |
---|---|---|---|
3560995 | Zielinski et al. | Feb 1971 | |
4225827 | Davis, Jr. | Sep 1980 | |
4367443 | Hull et al. | Jan 1983 | |
4390851 | Higgins et al. | Jun 1983 | |
4592073 | Watanabe | May 1986 | |
4602218 | Vilmur et al. | Jul 1986 | |
4628275 | Skipper et al. | Dec 1986 | |
4689576 | Wisseman | Aug 1987 | |
4843345 | Soderstrom | Jun 1989 | |
4945314 | Van Den Bungelaar | Jul 1990 | |
4985686 | Davidson et al. | Jan 1991 | |
4992753 | Jenson et al. | Feb 1991 | |
5029298 | Chiba et al. | Jul 1991 | |
5038112 | O'Neill | Aug 1991 | |
5043672 | Youn | Aug 1991 | |
5060294 | Schwent et al. | Oct 1991 | |
5126688 | Nakanishi et al. | Jun 1992 | |
5138275 | Abbiati et al. | Aug 1992 | |
5150075 | Hietala et al. | Sep 1992 | |
5173835 | Cornett et al. | Dec 1992 | |
5204637 | Trinh | Apr 1993 | |
5275879 | Elingson et al. | Jan 1994 | |
5276912 | Siwiak et al. | Jan 1994 | |
5278994 | Black et al. | Jan 1994 | |
5278996 | Shitara | Jan 1994 | |
5278997 | Martin | Jan 1994 | |
5317277 | Cavigelli | May 1994 | |
5319804 | Matsumoto et al. | Jun 1994 | |
5329259 | Stengel et al. | Jul 1994 | |
5339041 | Nitardy | Aug 1994 | |
5361403 | Dent | Nov 1994 |
Number | Date | Country |
---|---|---|
685936A1 | Dec 1995 | EPX |
62-139425 | Jun 1987 | JPX |
Entry |
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Willis-Amplifier Having Adjustable Gain and Constant Input Impedance TN No.1258 Sep. 11, 1980. |
Motorola Technical Developments vol. 21 Feb. 1994, pp. 17 & 18. |
US Application Serial No. 08/332,968 entitled Method and Apparatus for Increasing Amplifier Efficiency, Filed on Nov. 1, 1994 by William P. Albreth Jr., et al. |
U.S. Ser. No. 08/332,968 Alberth, Jr. et al., filed Nov. 1, 1994. |