Patents by Inventor Jack M. Walden
Jack M. Walden has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4158233Abstract: 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, 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.Type: GrantFiled: June 1, 1977Date of Patent: June 12, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4158231Abstract: An adaptable programmable calculator is provided by employing modulr read-write and read-only memory units 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, an input-output control unit for 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.Type: GrantFiled: June 1, 1977Date of Patent: June 12, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4156917Abstract: An adaptable programmable calculator is provided by employing modular read-write and read-only memory units 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, 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.Type: GrantFiled: June 1, 1977Date of Patent: May 29, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4156918Abstract: An adaptable programmable calculator is provided by employing modular read-write and read-only memory units 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.Type: GrantFiled: June 1, 1977Date of Patent: May 29, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4156285Abstract: An adaptable programable calculator is provided by employing modular read-write and read-only memory units 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, 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.Type: GrantFiled: June 1, 1977Date of Patent: May 22, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4156282Abstract: An adaptable programmable calculator is provided by employing modular read-write and read-only memory units 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, 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.Type: GrantFiled: June 1, 1977Date of Patent: May 22, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4152773Abstract: An adaptable programmable calculator is provided by employing modular read-write and read-only memory units 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, 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.Type: GrantFiled: June 1, 1977Date of Patent: May 1, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4152774Abstract: An adaptable programmable calculator is provided by employing modular read-write and read-only memory units 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, 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.Type: GrantFiled: June 1, 1977Date of Patent: May 1, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4152770Abstract: An adaptable programmable calculator is provided by employing modular read-write and read-only memory units 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, 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.Type: GrantFiled: June 1, 1977Date of Patent: May 1, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4152771Abstract: An adaptable programmable calculator is provided by employing modular read-write and read-only memory units 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, 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.Type: GrantFiled: June 1, 1977Date of Patent: May 1, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4152769Abstract: An adaptable programmable calculator is provided by employing modular read-write and read-only memory units 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, an input-output control unit for 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.Type: GrantFiled: June 1, 1977Date of Patent: May 1, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4145742Abstract: An adaptable programmable calculator is provided by employing modular read-write and read-only memory units capable of being expanded to provide the calculator with additional program and data storage functions, a central processing unit, and an input-output control unit for 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, a magnetic card reading and recording unit, a solid state multi-character display unit capable of displaying every alphabetic and numeric character and many other symbols individually and in a line of one or more alphameric statements, and a thermal printer unit.Type: GrantFiled: May 24, 1977Date of Patent: March 20, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4145752Abstract: 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, such as a keyboard and an output display unit. The memory, central processor, and input-output control units are controlled by a microprocessor included in the central processing unit.Type: GrantFiled: June 1, 1977Date of Patent: March 20, 1979Assignee: Hewlett-Packard CompanyInventors: Emil E. Olander, Jr., Rex J. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell
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Patent number: 4063221Abstract: A modular read-write and read-only memory unit capable of employing both direct and indirect decimal and symbolic addressing, a central processing unit capable of performing both serial binary and parallel binary-coded-decimal direct and indirect memory register arithmetic, and an input-output control unit capable of bidirectionally transferring information between the central processing unit a number of input and output units are controlled by a microprocessor included in the central processing unit. The input and output units include a keyboard input unit with a section capable of being defined by plug-in read-only memory modules and stored programs added by the user, a magnetic card reading and recording unit capable of bidirectionally transferring information between an external magnetic card and the calculator, and a solid state output display unit capable of displaying three lines of numeric information.Type: GrantFiled: December 23, 1974Date of Patent: December 13, 1977Assignee: Hewlett-Packard CompanyInventors: Robert E. Watson, Jack M. Walden, Charles W. Near
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Patent number: 4028538Abstract: 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. A keyboard input unit with a plurality of sections capable of being defined by plug-in read-only memory modules and stored programs added by the user, a magnetic card reading and recording unit, a solid state output display unit, and an output printer unit are included among the input and output units.Type: GrantFiled: September 30, 1974Date of Patent: June 7, 1977Assignee: Hewlett-Packard CompanyInventors: Emil Edward Olander, Jr., Rex L. James, Ivar W. Larson, Wayne F. Covington, Jack M. Walden, Robert E. Watson, Francis J. Yockey, Fred Wenninger, Jr., Homer C. Russell