MR. JAMES WILLIAM PICKETT, PTA
Restorative Service Providers at Southway Blvd, Kokomo, IN

License number
Indiana 06004485A
Category
Restorative Service Providers
Type
Physical Therapy Assistant
Address
Address 2
101 W Southway Blvd, Kokomo, IN 46902
1201 Frosty Ln, Anderson, IN 46012
Phone
(765) 453-8855
(765) 461-5192

Professional information

James Pickett Photo 1

Interface Circuit For Interfacing A Peripheral Device With A Microprocessor Operating In Either A Synchronous Or An Asynchronous Mode

US Patent:
5339395, Aug 16, 1994
Filed:
Sep 17, 1992
Appl. No.:
7/947126
Inventors:
James K. Pickett - Kokomo IN
Philip A. Inman - Kokomo IN
Matthew D. Sale - Kokomo IN
Assignee:
Delco Electronics Corporation - Kokomo IN
International Classification:
G06F 1314
US Classification:
395325
Abstract:
An interface circuit is described for interfacing a peripheral device and a microprocessor to enable data transference between a memory location within the peripheral device and a data bus of the microprocessor. In accordance with the type of bus control used by the microprocessor, the interface circuit is operated in either a synchronous mode or an asynchronous mode. The interface includes a state machine that responds to the mode of interface operation, a clock signal provided by the microprocessor, requests from the microprocessor to access an addressed peripheral memory location, and a busy signal from the peripheral device indicating when the peripheral is engaged in transferring data between the interface circuit and an addressed peripheral memory location. Preferably, the interface also operates to detect error conditions based on changes in the access request during data transference between the microprocessor and the peripheral device. In response to detecting an error condition, the state machine acts to interrupt data transference to avoid the transfer of invalid data.


James Pickett Photo 2

Cmos Binary Equals Comparator With Carry In And Out

US Patent:
4797650, Jan 10, 1989
Filed:
Jun 25, 1987
Appl. No.:
7/066654
Inventors:
James K. Pickett - Kokomo IN
Assignee:
Delco Electronics Corporation - Kokomo IN
International Classification:
G05B 100, G06F 702
US Classification:
3401462
Abstract:
A CMOS binary equals comparator circuit suitable for chaining into an n-bit equals comparator has carry in and carry out terminals with three MOSFETs and an inverter connected to pass through a high carry in voltage to the carry out terminal but to allow the comparison of the first and second bits in additional circuitry to determine the carry out voltage with a low carry in voltage. Further MOSFETs, in one P channel and one N channel pair, are interconnected and provided with the first bit, second bit and complement of the second bit to detect equality of the first and second bits. The circuit uses a small number of transistors per bit for the comparison.


James Pickett Photo 3

Cmos Binary Threshold Comparator

US Patent:
4755696, Jul 5, 1988
Filed:
Jun 25, 1987
Appl. No.:
7/066319
Inventors:
James K. Pickett - Kokomo IN
Assignee:
Delco Electronics Corporation - Kokomo IN
International Classification:
H03K 524
US Classification:
307451
Abstract:
A binary threshold comparator is disclosed for first and second binary numbers, wherein the first is variable and the second is a threshold or reference, with the complement of the second number available. The comparator may be a high threshold (greater/equal) comparator or a low threshold (less/equal) comparator. It comprises 5 MOSFETs per bit stage, with two additional MOSFETs per comparator for high/low determination and carry in precharge. A particular multi-bit embodiment of the comparator has a modified most significant bit stage which provides a complement of the normal output when the most significant bits of the numbers to be compared are different to prevent an immediate reversal of comparator output when a counter containing the variable number rolls over from all ones to all zeros or vice versa.