Frank Edward Cada
Engineers in Loveland, CO

License number

Colorado 10526

Issued Date

Sep 18, 1971

Renew Date

Sep 1, 1996

Expiration Date

Sep 1, 1996

Type

Professional Engineer

Address

3200 Scr #29, Loveland, CO 80537

Personal information

See more information about Frank Edward Cada at radaris.com

Name

Address

Phone

Frank Cada, age 84

2918 S County Road 29, Loveland, CO 80537

(970) 667-7548

Frank Cada

318 Dunne Dr, Fort Collins, CO 80525

Frank E Cada

1417 Zoe Ct, Loveland, CO 80537

Frank E Cada

1419 Zoe Ct, Loveland, CO 80537

Frank E Cada

2204 Arikaree Ct, Loveland, CO 80538

Professional information

Programmable Calculator Including Terminal Control Means

US Patent:

4126898, Nov 21, 1978

Filed:

Jan 19, 1977

Appl. No.:

5/760802

Inventors:

Richard M. Spangler - Loveland CO
Eugene V. Burmeister - Loveland CO
Frank E. Cada - Loveland CO
Wayne F. Covington - Loveland CO
Chris J. Christopher - Loveland CO
Myles A. Judd - Loveland CO
Freddie W. Wenninger - Loveland CO
Robert E. Watson - Loveland CO
Kent W. Simcoe - Loveland CO

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G06F 1502, G06F 1100, G06F 304, G06F 1300

US Classification:

364900

Abstract:

An adaptable programmable calculator is provided by employing a modular read-write and read-only memory unit capable of being expanded to provide the calculator with additional program and data storage functions oriented towards the environment of the user, a central processing unit capable of performing both serial binary and parallel binary-coded-decimal arithmetic, and an input-output control unit capable of bidirectionally transferring information between the memory or central processing units and a number of input and output units. The memory, central processor, and input-output control units are controlled by a microprocessor included in the central processing unit. The input and 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 and, a solid state output display unit capable of displaying every alphabetic and numeric character and many other symbols individually or in combination. All of these input and output units are included within the calculator itself. An output printer, an X-Y plotter, a typewriter, a teletypewriter, a magnetic or paper tape reading and recording unit, an extended read-write memory unit, a magnetic disc reading and recording unit, a modem for connecting the calculator via telephone lines to a remotely located computer, and many other peripheral input and output units may also be employed with the calculator.

Electronic Computing Apparatus Employing Basic Language

US Patent:

4366553, Dec 28, 1982

Filed:

Oct 24, 1980

Appl. No.:

6/200281

Inventors:

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G06F 3023

US Classification:

364900

Abstract:

An adaptable programmable calculator is provided by employing a modular read-write and read-only memory unit capable of being expanded to provide the calculator with additional program and data storage functions oriented towards the environment of the user, a central processing unit capable of performing both serial binary and parallel binary-coded-decimal arithmetic, and an input-output control unit capable of bidirectionally transferring information between the memory or central processing units and a number of input and output units. The memory, central processor, and input-output control units are controlled by a microprocessor included in the central processing unit. Also the calculator may be operated manually by the user from an alphanumeric keyboard input unit or automatically by a program stored within the memory unit to perform calculations and provide an output indication of the results thereof. It may also be employed to load programs into the memory unit from the keyboard input unit. Also, the computer language allows the user to enter a line comprising an alphanumeric statement into the calculator from the keyboard input unit while visually observing an alphanumeric display of that line to check for errors therein, permitting the user to cause the entered lines to be immediately executed by the calculator or stored as part of a program within the memory unit, and permitting the user to subsequently recall the executed or stored line so that it may be reinspected, reevaluated, and, if necessary, edited and executed or re-executed, or restored in edited form.

Programmable Calculator

US Patent:

4012725, Mar 15, 1977

Filed:

May 30, 1974

Appl. No.:

5/469727

Inventors:

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G06F 1540, G06F 1502, G06F 314, G06F 738

US Classification:

3401725

Abstract:

Programmable Calculator Having Extended Input/Output Capability

US Patent:

4127897, Nov 28, 1978

Filed:

Jan 19, 1977

Appl. No.:

5/760801

Inventors:

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G06F 300, G06F 502, G06F 302

US Classification:

364900

Abstract:

An adaptable programmable calculator is provided by employing a modular read-write and read-only memory unit capable of being expanded to provide the calculator with additional program and data storage functions oriented towards the environment of the user, a central processing unit capable of performing both serial binary and parallel binary-coded-decimal arithmetic, and an input-output control unit capable of bidirectionally transferring information between the memory or central processing units and a number of input and output units. The memory, central processor, and input-output control units are controlled by a microprocessor included in the central processing unit. The input and 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, and a solid state output display unit capable of displaying every alphabetic and numeric character and many other symbols individually or in combination. All of these input and output units are included within the calculator itself. An output printer, and X-Y plotter, a typewriter, a teletypewriter, a magnetic or paper tape reading and recording unit, an extended read-write memory unit, a magnetic disc reading and recording unit, a modem for connecting the calculator via telephone lines to a remotely located computer, and many other peripheral input and output units may also be employed with the calculator.

Programmable Calculator Having Structure For Controlling An X-Y Plotter

US Patent:

4322816, Mar 30, 1982

Filed:

Jun 12, 1980

Appl. No.:

6/158675

Inventors:

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G06F 313, G06F 302, G06K 1522

US Classification:

364900

Abstract:

An adaptable programmable calculator is provided by employing a modular read-write and read-only memory unit capable of being expanded to provide the calculator with additional program and data storage functions oriented towards the environment of the user, a central processing unit capable of performing both serial binary and parallel binary-coded-decimal arithmetic, and an input-output control unit capable of bidirectionally transferring information between the memory or central processing units and a number of input and output units. The memory, central processor, and input-output control units are controlled by a microprocessor included in the central processing unit. The input and 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, and a solid state output display unit capable of displaying every alphabetic and numeric character and many other symbols individually or in combination. All of these input and output units are included within the calculator itself. An output printer, an X-Y plotter, a typewriter, a teletypewriter, a magnetic or paper tape reading and recording unit, an extended read-write memory unit, a magnetic disc reading and recording unit, a modem for connecting the calculator via telephone lines to a remotely located computer, and many other peripheral input and output units may also be employed with the calculator.

Programmable Calculator Including Program Variable Initialization Means And Definition Means Array

US Patent:

4546448, Oct 8, 1985

Filed:

Sep 22, 1982

Appl. No.:

6/421591

Inventors:

Richard M. Spangler - Loveland CO
Eugene V. Burmeister - Loveland CO
Frank E. Cada - Loveland CO
Chris J. Christopher - Loveland CO
Wayne F. Covington - Loveland CO
Myles A. Judd - Loveland CO
Freddie W. Wenninger - Loveland CO
Robert E. Watson - Loveland CO
Kent W. Simcoe - Loveland CO

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G06F 302, G06F 906

US Classification:

364900

Abstract:

A programmable calculator utilizes an initialization key for setting all program variables, including array variables that are stored as part of a program in the calculator memory, to a predetermined initial value.