On Saturday, May 20, 2017 at 2:09:01 AM UTC+10, Phil Hobbs wrote:> On 05/19/2017 11:46 AM, Jim Thompson wrote: > > On Fri, 19 May 2017 11:29:03 -0400, Phil Hobbs > > <pcdhSpamMeSenseless@electrooptical.net> wrote: > > > >> On 05/19/2017 11:22 AM, Jim Thompson wrote: > >>> On 18 May 2017 19:39:50 -0700, Winfield Hill > >>> <hill@rowland.harvard.edu> wrote: > >>> > >>>> Jim Thompson wrote... > >>>>> > >>>>> On 18 May 2017 18:37:15 -0700, Winfield Hill > >>>>> <hill@rowland.harvard.edu> wrote: > >>>>> > >>>>>> Jim Thompson wrote... > >>>>>>> > >>>>>>> Winfield Hill wrote: > >>>>>>>> Jim Thompson wrote... > >>>>>>>>> Lasse Langwadt Christensen wrote: > >>>>>>>>>> Winfield Hill wrote: > >>>>>>>>>>> bill.sloman@ieee.org wrote... > >>>>>>>>>>>> > >>>>>>>>>>>> But Jim can't name an integrated circuit he designed. ... > >>>>>>>>>>> > >>>>>>>>>>> I know he was a specialist in high-power IC design, > >>>>>>>>>>> see his 1968 paper in JSSC, "A Monolithic High-Power > >>>>>>>>>>> Series Voltage Regulator", and with James Solomon, > >>>>>>>>>>> "A High-Performance 3-Watt Monolithic Class-B Power > >>>>>>>>>>> Amplifier"; both were probably Motorola parts. And > >>>>>>>>>>> I have his paper on a Monolithic-Sonar-System. There > >>>>>>>>>>> are likely many more papers if one were to look. He > >>>>>>>>>>> also had patents, which I have stored in my computer. > >>>>>>> > >>>>>>> I'll browse the patents and can probably identify those > >>>>>>> products that are Motorola's. > >>>>>> > >>>>>> I'm curious about the two Motorola papers I quoted. > >>>>> > >>>>> I'm not sure they are Motorola papers. By 1968, they both may > >>>>> have left Motorola... there was some turmoil in those days ;-) > >>>> > >>>> Both papers list Motorola affiliation, that is they were > >>>> Motorola paid-for projects. Check them out on DropBox. > >>>> https://www.dropbox.com/sh/t27kt0zjnxo8a3p/AABRbcodOSEzxyBUaikzic1ia?dl=0 > >>> > >>> Paper "1968_Frederiksen,Solomon_amplifier.pdf" is MC1554... the output > >>> stage is my scheme... a sliding class-A version can be seen in the > >>> MC1530/31 OpAmps. > >>> > >>> Paper "Frederiksen_regulator_JSSC(1968).pdf" looks like am LM117 > >>> regulator. I am unaware of what Motorola might have called it, I was > >>> not involved with regulators at that point-in-time, just PLL's and > >>> A/D/A (and I might have been away at Philco-Ford doing automotive > >>> stuff :-). > >>> > >>> Note that Figure 6 is my current mirror scheme (not credited in > >>> standard Jim Solomon style). He was a cretin who got his ass publicly > >>> handed to him on a platter by writing a paper claiming he created the > >>> Gilbert multiplier. > >>> > >>> It'll take me a few days to got thru the patents (*), but US4607172 is > >>> an NSC comparator, part number unknown, should have be found to > >>> infringe my patent US3638041, MC1650/51 MECL Comparators. > >> > >> When two patents cover the same invention it's called "interference", > >> not "infringement". > > > > The patent examiner should have caught it. > > Yup. They only have about 8 hours assigned to each application, though, > and rely very heavily on keyword searches to find prior art. > > Garrett Moddel of U Colorado and I (IBM) have almost the exact same > patent on waveguide-integrated tunnel junction optical modulators. If > either of us had been able to make them work, it could have been an > interesting fight. ;) > > It's possible to have the same invention described in quite different > terms, so that a simple keyword search doesn't find the prior art.The RCA and EMI colour TV patents described the process of putting the colour information on a sub-carrier as "quadrature modulation" and "sine-cosine modulation" respectively. EMI patented it first, but the US court decided that the two descriptions implied different processes - they didn't say how - so the RCA patent stood - surprise, surprise. -- Bill Sloman, Sydney
Tom Frederiksen, RIP
Started by ●May 16, 2017
Reply by ●May 20, 20172017-05-20
Reply by ●May 20, 20172017-05-20
On Saturday, May 20, 2017 at 1:22:13 AM UTC+10, Jim Thompson wrote:> On 18 May 2017 19:39:50 -0700, Winfield Hill > <hill@rowland.harvard.edu> wrote: > > >Jim Thompson wrote... > >> > >>On 18 May 2017 18:37:15 -0700, Winfield Hill > >><hill@rowland.harvard.edu> wrote: > >> > >>>Jim Thompson wrote... > >>>> > >>>>Winfield Hill wrote: > >>>>> Jim Thompson wrote... > >>>>>> Lasse Langwadt Christensen wrote: > >>>>>>> Winfield Hill wrote: > >>>>>>>> bill.sloman@ieee.org wrote... > >>>>>>>>> > >>>>>>>>> But Jim can't name an integrated circuit he designed. ... > >>>>>>>> > >>>>>>>> I know he was a specialist in high-power IC design, > >>>>>>>> see his 1968 paper in JSSC, "A Monolithic High-Power > >>>>>>>> Series Voltage Regulator", and with James Solomon, > >>>>>>>> "A High-Performance 3-Watt Monolithic Class-B Power > >>>>>>>> Amplifier"; both were probably Motorola parts. And > >>>>>>>> I have his paper on a Monolithic-Sonar-System. There > >>>>>>>> are likely many more papers if one were to look. He > >>>>>>>> also had patents, which I have stored in my computer. > >>>> > >>>> I'll browse the patents and can probably identify those > >>>> products that are Motorola's. > >>> > >>> I'm curious about the two Motorola papers I quoted. > >> > >> I'm not sure they are Motorola papers. By 1968, they both may > >> have left Motorola... there was some turmoil in those days ;-) > > > > Both papers list Motorola affiliation, that is they were > > Motorola paid-for projects. Check them out on DropBox. > > https://www.dropbox.com/sh/t27kt0zjnxo8a3p/AABRbcodOSEzxyBUaikzic1ia?dl=0 > > Paper "1968_Frederiksen,Solomon_amplifier.pdf" is MC1554... the output > stage is my scheme... a sliding class-A version can be seen in the > MC1530/31 OpAmps.http://pdf1.alldatasheet.com/datasheet-pdf/view/907067/HARRIS/MC1554G.html lists it as a 1-Watt power amplifier.> Paper "Frederiksen_regulator_JSSC(1968).pdf" looks like an LM117 > regulator.Bob Pease seems to think that it was a National Semiconductor home product http://www.tayloredge.com/reference/Ganssle-Pease/bobpease-bandgap.pdf -- Bill Sloman, Sydney
Reply by ●May 20, 20172017-05-20
On Fri, 19 May 2017 20:17:45 -0700 (PDT), bill.sloman@ieee.org wrote:>On Saturday, May 20, 2017 at 1:22:13 AM UTC+10, Jim Thompson wrote: >> On 18 May 2017 19:39:50 -0700, Winfield Hill >> <hill@rowland.harvard.edu> wrote: >> >> >Jim Thompson wrote... >> >> >> >>On 18 May 2017 18:37:15 -0700, Winfield Hill >> >><hill@rowland.harvard.edu> wrote: >> >> >> >>>Jim Thompson wrote... >> >>>> >> >>>>Winfield Hill wrote: >> >>>>> Jim Thompson wrote... >> >>>>>> Lasse Langwadt Christensen wrote: >> >>>>>>> Winfield Hill wrote: >> >>>>>>>> bill.sloman@ieee.org wrote... >> >>>>>>>>> >> >>>>>>>>> But Jim can't name an integrated circuit he designed. ... >> >>>>>>>> >> >>>>>>>> I know he was a specialist in high-power IC design, >> >>>>>>>> see his 1968 paper in JSSC, "A Monolithic High-Power >> >>>>>>>> Series Voltage Regulator", and with James Solomon, >> >>>>>>>> "A High-Performance 3-Watt Monolithic Class-B Power >> >>>>>>>> Amplifier"; both were probably Motorola parts. And >> >>>>>>>> I have his paper on a Monolithic-Sonar-System. There >> >>>>>>>> are likely many more papers if one were to look. He >> >>>>>>>> also had patents, which I have stored in my computer. >> >>>> >> >>>> I'll browse the patents and can probably identify those >> >>>> products that are Motorola's. >> >>> >> >>> I'm curious about the two Motorola papers I quoted. >> >> >> >> I'm not sure they are Motorola papers. By 1968, they both may >> >> have left Motorola... there was some turmoil in those days ;-) >> > >> > Both papers list Motorola affiliation, that is they were >> > Motorola paid-for projects. Check them out on DropBox. >> > https://www.dropbox.com/sh/t27kt0zjnxo8a3p/AABRbcodOSEzxyBUaikzic1ia?dl=0 >> >> Paper "1968_Frederiksen,Solomon_amplifier.pdf" is MC1554... the output >> stage is my scheme... a sliding class-A version can be seen in the >> MC1530/31 OpAmps. > >http://pdf1.alldatasheet.com/datasheet-pdf/view/907067/HARRIS/MC1554G.html > >lists it as a 1-Watt power amplifier.Slowman seems to have a mental deficiency requiring incessant insistence on being a horse's ass. Original release MC1554 was in a TO-5 can (MC1554G) and was thus rated (optimistically) as 1-Watt, based on a slip-on finned heat-sink. I lost a bet to Tom concerning how much power output could be attained. He opined some outrageous amount... I don't remember, maybe 10-Watts (after all, we're talking 50+ years ago). I said, "No way". I lost. I came to work one Monday morning to find that Tom had come in over the weekend and machined a slab of Aluminum such that a TO-5 could be force-fit into it. He also drilled a pathway thru the block with threaded fitting such that he could pipe CO2 thru it. Voila! 10-Watts (or whatever grotesque amount ;-)> >> Paper "Frederiksen_regulator_JSSC(1968).pdf" looks like an LM117 >> regulator. > >Bob Pease seems to think that it was a National Semiconductor home product > >http://www.tayloredge.com/reference/Ganssle-Pease/bobpease-bandgap.pdfLM117 is the numbering assigned by National... I'm not sure if it was (initially) made at Motorola Semiconductor Products Division... Motorola SPD was heading into its final death spiral in that time frame. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | Thinking outside the box... producing elegant solutions. "It is not in doing what you like, but in liking what you do that is the secret of happiness." -James Barrie
Reply by ●May 20, 20172017-05-20
On 18 May 2017 19:39:50 -0700, Winfield Hill <hill@rowland.harvard.edu> wrote:>Jim Thompson wrote... >> >>On 18 May 2017 18:37:15 -0700, Winfield Hill >><hill@rowland.harvard.edu> wrote: >> >>>Jim Thompson wrote... >>>> >>>>Winfield Hill wrote: >>>>> Jim Thompson wrote... >>>>>> Lasse Langwadt Christensen wrote: >>>>>>> Winfield Hill wrote: >>>>>>>> bill.sloman@ieee.org wrote... >>>>>>>>> >>>>>>>>> But Jim can't name an integrated circuit he designed. ... >>>>>>>> >>>>>>>> I know he was a specialist in high-power IC design, >>>>>>>> see his 1968 paper in JSSC, "A Monolithic High-Power >>>>>>>> Series Voltage Regulator", and with James Solomon, >>>>>>>> "A High-Performance 3-Watt Monolithic Class-B Power >>>>>>>> Amplifier"; both were probably Motorola parts. And >>>>>>>> I have his paper on a Monolithic-Sonar-System. There >>>>>>>> are likely many more papers if one were to look. He >>>>>>>> also had patents, which I have stored in my computer. >>>> >>>> I'll browse the patents and can probably identify those >>>> products that are Motorola's. >>> >>> I'm curious about the two Motorola papers I quoted. >> >> I'm not sure they are Motorola papers. By 1968, they both may >> have left Motorola... there was some turmoil in those days ;-) > > Both papers list Motorola affiliation, that is they were > Motorola paid-for projects. Check them out on DropBox. > https://www.dropbox.com/sh/t27kt0zjnxo8a3p/AABRbcodOSEzxyBUaikzic1ia?dl=0Perusing all of Tom's patents, only the two RExxxxx one's are assigned to Motorola. Neither of which can I attach a Motorola part number. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | Thinking outside the box... producing elegant solutions. "It is not in doing what you like, but in liking what you do that is the secret of happiness." -James Barrie
Reply by ●May 21, 20172017-05-21
On Sunday, May 21, 2017 at 3:56:57 AM UTC+10, Jim Thompson wrote:> On Fri, 19 May 2017 20:17:45 -0700 (PDT), bill.sloman@ieee.org wrote: > > >On Saturday, May 20, 2017 at 1:22:13 AM UTC+10, Jim Thompson wrote: > >> On 18 May 2017 19:39:50 -0700, Winfield Hill > >> <hill@rowland.harvard.edu> wrote: > >> > >> >Jim Thompson wrote... > >> >> > >> >>On 18 May 2017 18:37:15 -0700, Winfield Hill > >> >><hill@rowland.harvard.edu> wrote: > >> >> > >> >>>Jim Thompson wrote... > >> >>>> > >> >>>>Winfield Hill wrote: > >> >>>>> Jim Thompson wrote... > >> >>>>>> Lasse Langwadt Christensen wrote: > >> >>>>>>> Winfield Hill wrote: > >> >>>>>>>> bill.sloman@ieee.org wrote... > >> >>>>>>>>> > >> >>>>>>>>> But Jim can't name an integrated circuit he designed. ... > >> >>>>>>>> > >> >>>>>>>> I know he was a specialist in high-power IC design, > >> >>>>>>>> see his 1968 paper in JSSC, "A Monolithic High-Power > >> >>>>>>>> Series Voltage Regulator", and with James Solomon, > >> >>>>>>>> "A High-Performance 3-Watt Monolithic Class-B Power > >> >>>>>>>> Amplifier"; both were probably Motorola parts. And > >> >>>>>>>> I have his paper on a Monolithic-Sonar-System. There > >> >>>>>>>> are likely many more papers if one were to look. He > >> >>>>>>>> also had patents, which I have stored in my computer. > >> >>>> > >> >>>> I'll browse the patents and can probably identify those > >> >>>> products that are Motorola's. > >> >>> > >> >>> I'm curious about the two Motorola papers I quoted. > >> >> > >> >> I'm not sure they are Motorola papers. By 1968, they both may > >> >> have left Motorola... there was some turmoil in those days ;-) > >> > > >> > Both papers list Motorola affiliation, that is they were > >> > Motorola paid-for projects. Check them out on DropBox. > >> > https://www.dropbox.com/sh/t27kt0zjnxo8a3p/AABRbcodOSEzxyBUaikzic1ia?dl=0 > >> > >> Paper "1968_Frederiksen,Solomon_amplifier.pdf" is MC1554... the output > >> stage is my scheme... a sliding class-A version can be seen in the > >> MC1530/31 OpAmps. > > > >http://pdf1.alldatasheet.com/datasheet-pdf/view/907067/HARRIS/MC1554G.html > > > >lists it as a 1-Watt power amplifier. > > Sloman seems to have a mental deficiency requiring incessant > insistence on being a horse's ass. > > Original release MC1554 was in a TO-5 can (MC1554G) and was thus rated > (optimistically) as 1-Watt, based on a slip-on finned heat-sink.Jim Thompson seems to be suggesting that the mental deficiency was at Motorola - there's not a lot of point in developing a 3-Watt chip and selling it in a 1-Watt package. National Semiconductor didn't make this mistake with the LM12.> I lost a bet to Tom concerning how much power output could be > attained. He opined some outrageous amount... I don't remember, maybe > 10-Watts (after all, we're talking 50+ years ago). I said, "No way". > > I lost. I came to work one Monday morning to find that Tom had come > in over the weekend and machined a slab of Aluminum such that a TO-5 > could be force-fit into it. He also drilled a pathway thru the block > with threaded fitting such that he could pipe CO2 thru it. Voila! > 10-Watts (or whatever grotesque amount ;-)So he knew the score, even if you didn't.> >> Paper "Frederiksen_regulator_JSSC(1968).pdf" looks like an LM117 > >> regulator. > > > >Bob Pease seems to think that it was a National Semiconductor home product > > > >http://www.tayloredge.com/reference/Ganssle-Pease/bobpease-bandgap.pdf > > LM117 is the numbering assigned by National... I'm not sure if it was > (initially) made at Motorola Semiconductor Products Division... > Motorola SPD was heading into its final death spiral in that time > frame.Putting the MC1554 into a 1-Watt package would be evidence of that. -- Bill Sloman, Sydney
Reply by ●May 21, 20172017-05-21
On Sun, 21 May 2017 05:21:52 -0700 (PDT), bill.sloman@ieee.org wrote:
[incoherent rambling by Slowman snipped]
[remaining coherent content from Slowman follows]...
............................................... >:-}
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| STV, Queen Creek, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
Thinking outside the box... producing elegant solutions.
"It is not in doing what you like, but in liking what you do that
is the secret of happiness." -James Barrie
Reply by ●May 22, 20172017-05-22
On Monday, May 22, 2017 at 1:48:47 AM UTC+10, Jim Thompson wrote:> On Sun, 21 May 2017 05:21:52 -0700 (PDT), bill.sloman@ieee.org wrote: > > [incoherent rambling by Sloman snipped]Rambling incoherent Jim Thopmson can't make any sense of it.> [remaining coherent content from Sloman follows]... > > ............................................... >:-}Jim Thompson is even worse than krw at making sense of stuff that he doesn't want to think about. I've finally got Jim Thompson to identify a integrated circuit that Jim thinks that Tom Frederiksen designed, but Jim can't explain why the MC1554 ended up in a 1-Watt package, when Tom Frederiksen trumped it as a 3-Watt device (and demonstrated that you could get 10W out of it with a sufficiently bizarre heat-sink). -- Bill Sloman
