Franklin Timothy Hickenlooper
Engineers at Genoa Ct, Loveland, CO

License number

Colorado 19975

Issued Date

Nov 22, 1982

Renew Date

Nov 19, 1985

Expiration Date

Nov 19, 1985

Type

Professional Engineer

Address

2092 Genoa Ct, Loveland, CO 80537

Professional information

Programmable Calculator Employing A Read-Write Memory Having A Movable Boundary Between Program And Data Storage Sections Thereof

US Patent:

4089059, May 9, 1978

Filed:

Jul 21, 1975

Appl. No.:

5/597957

Inventors:

Bradley W. Miller - Loveland CO
Franklin T. Hickenlooper - Loveland CO
David C. Uhlrich - Loveland CO
Marl D. Godfrey - Loveland CO
Douglas M. Clifford - Loveland CO
Rex L. James - Loveland CO
Robert E. Watson - Loveland CO
John C. Keith - Loveland CO
Alan C. Mortensen - Loveland CO

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G06F 906

US Classification:

364706

Abstract:

An adaptable programmable calculator employs modular read-write and read-only memories separately expandable to provide additional program and data storage functions within the calculator oriented toward the environment of the user, an LSI NMOS central processing unit, and an LSI NMOS peripheral interface adaptor capable of bidirectionally transferring information between the read-write memory and central processing unit and a number of input/output units. The modular read-write memory includes a movable boundary between a program storage section thereof and a data storage section thereof to permit the user to adjust the size of those sections of the read-write memory in accordance with his present problem solving requirements. The input/output units include a keyboard input unit with a plurality of alphanumeric keys, a magnetic tape cassette reading and recording unit capable of bidirectionally transferring programs and data between a magnetic tape and the calculator, a seven-segment gas discharge display for displaying data entered into the calculator, the results of computations, and selected alphanumeric messages, and a 16-column alphanumeric thermal printer for printing results of computations, program listings, messages generated by the user and the calculator itself, and error conditions encountered during use of the calculator. All of these input/output units are included within the calculator itself.

Programmable Calculator Including Means For Digitizing The Position Of An X-Y Plotter Pen

US Patent:

4566072, Jan 21, 1986

Filed:

Mar 8, 1982

Appl. No.:

6/355431

Inventors:

Alan C. Mortensen - Loveland CO
Bradley W. Miller - Loveland CO
Franklin T. Hickenlooper - Loveland CO
David C. Uhlrich - Loveland CO
Marl D. Godfrey - Loveland CO
Douglas M. Clifford - Loveland CO
Rex L. James - Loveland CO
Robert E. Watson - Loveland CO
John C. Keith - Loveland CO

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G06F 313

US Classification:

364520

Abstract:

An electronic calculator includes modular read-write and read-only memory units, a central processing unit, an output display unit, an output printer unit, a keyboard input unit, and input/output interface circuitry for facilitating the connection of one or more peripheral input/output units, such as an X-Y plotter, for example, to the calculator. When the calculator is coupled to an X-Y plotter, the user may employ commands entered from the keyboard input unit to move the plotter pen to an arbitrary position on the plotter platen whose X and Y coordinates are unknown to him and to subsequently cause the calculator to determine and display the X and Y coordinates of that arbitrary pen position.

Programmable Calculator Including Means For Automatically Processing Imformation Stored On A Magnetic Record Member

US Patent:

4330839, May 18, 1982

Filed:

Jun 29, 1979

Appl. No.:

6/053442

Inventors:

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G06F 1300

US Classification:

364706

Abstract:

An adaptable programmable calculator employs modular read-write and read-only memories separately expandable to provide additional program and data storage functions within the calculator oriented toward the environment of the user, an LSI NMOS central processing unit, and LSI NMOS peripheral interface adaptor capable of bidirectionally transferring information between the read-write memory and central processing unit and a number of input/output units. The input/output units include a keyboard input unit with a plurality of alphanumeric keys, a magnetic tape cassette reading and recording unit capable of bidirectionally transferring programs and data between a magnetic tape and the calculator, a seven-segment gas discharge display, and a 16-column alphanumeric thermal printer. The calculator includes switch means for selecting an auto start mode of calculator operation whereby, upon the application of operating power to the calculator, a program stored on an external magnetic record member is automatically loaded into the calculator read-write memory and execution of that program is commenced.