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Addison M Fischer
Addison M Fischer


Mr. Fischer serves as a director of Oceans 5, The Jane Goodall Institute, and the East West Institute, and is on the advisory boards of the Electronic Privacy Information Center (EPIC) and the Amazon Conservation Team.

Item 1

Twenty-two major software and security companies are being sued for alleged patent infringement by a little-known entity now controlling the two patents in question.
Information Protection and Authentication of Texas (IPAT) filed suit on Dec. 30 against companies such as Microsoft, Symantec and CA, alleging infringement of U.S. patents No. 5,311,591 and No. 5,412,717.
Patent 5,311,591
 is called “Computer System Security Method and Apparatus for Creating and Using Program Authorization Information Data Structures” and was granted in May 1994. The inventor is credited as Addison M. Fischer of Naples, Florida. The innovation is intended to allow a computer user to control how an application behaves in order to thwart other malicious software.
The second one, No. 5,412,717
  is also credited to Fischer and was granted in May 1995. The invention deals with using hashes -- unique numerical identifiers -- to ensure an application has not been tampered with.
IPAT is asking for a jury trial in U.S. District Court for the Eastern District of Texas, where many companies choose to file patent disputes. IPAT seeks an injunction against the companies using the technologies and damages.
Also named in the suit are companies AVG, Check Point Software, Comodo, ESET, F-Secure, Iolo technologies, Kaspersky Lab, McAfee, MicroWorld Technologies, NetVeda, Norman Data Defense Systems, Novell, PC Tools, PWI, Sophos, Sunbelt Software, Trend Micro, Velocity Micro, and Webroot Software.

Patents by Inventor Addison M. Fischer
Addison M. Fischer 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).

    Self-labeling digital storage unit
Patent number: 8578063
Abstract: Portable storage units are equipped with human readable electronic displays that contain information pertaining to the content and state of the storage units. The information displayed changes as the contents of the storage unit change. Such electronic labels can contain a variety of useful information. Some information would be static, such as owner identification, while other information will be dynamic such as the amount of free space. Still other information will be browseable such as the directory structure, file contents, storage unit total capacity, storage unit available space, storage unit directory structure, storage unit file names. storage unit file contents and device reliability statistics.
Type: Grant
Filed: November 23, 2004
Date of Patent: November 5, 2013
Assignee: Mitsubishi Kagaku Media Co., Ltd.
Inventors: Michael S. Battaglia, Addison M. Fischer, Randal J. Martin, Steve Armfield

    Enhanced digital data collector for removable memory modules
Patent number: 7983522
Abstract: A hand-held battery powered data transfer and repository device for transferring data between one or more flash memory modules and a large capacity digital storage device, which may be either external or internal to the device. The device includes one or more slots to accept a flash memory module into a housing which includes processing and logic circuitry disposed within the housing for transferring data between the flash memory module and the large capacity digital storage device. Ports are disclosed for transferring data between the repository and data transfer device to a host device, which may be a wide range of digital appliances including a digital computer, a digital camera, a camcorder or a personal digital assistant.
Type: Grant
Filed: September 14, 2005
Date of Patent: July 19, 2011
Assignee: SMDK Corp.
Inventors: Michael S. Battaglia, Offie L Drennan, Addison M. Fischer

    Audio cassette emulator with cryptographic media distribution control
Patent number: 7436957
Abstract: A device of the same general physical size and shape as a standard audio cassette tape, but which accepts digital information from any of a variety of sources-including for example: Internet transmission, a digital computer, or memory cards (especially digital memory cards)-and plays this digital information through any, for example, standard audio tape cassette player. The device operates by converting the digital representation of the sound into magnetic signals which are presented to the read/write head of the cassette player equipment. The device allows the user of the cassette player to regulate the audio playback using conventional equipment controls such as: START, STOP, REWIND, FAST REWIND, FORWARD, FAST FORWARD, etc.
Type: Grant
Filed: July 29, 1999
Date of Patent: October 14, 2008
Inventors: Addison M. Fischer, Robert L. Protheroe

    Enhanced digital data collector for removable memory modules 
Patent number: 6987927
Abstract: A hand-held battery powered data transfer and repository device for transferring data between one or more flash memory modules and a large capacity digital storage device, which may be either external or internal to the device. The device includes one or more slots to accept a flash memory module into a housing which includes processing and logic circuitry disposed within the housing for transferring data between the flash memory module and the large capacity digital storage device. Ports are disclosed for transferring data between the repository and data transfer device to a host device, which may be a wide range of digital appliances including a digital computer, a digital camera, a camcorder or a personal digital assistant.
Type: Grant
Filed: July 13, 2000
Date of Patent: January 17, 2006
Assignee: SmartDisk Corporation
Inventors: Michael S. Battaglia, Offie L Drennan, Addison M. Fischer

    Audio cassette emulator
Patent number: 6941180
Abstract: A device of the same general physical size and shape as a standard audio cassette tape, but which accepts digital information from any of a variety of sources-including for example: Internet transmission, a digital computer, or memory cards (especially digital memory cards)-and plays this digital information through any, for example, standard audio tape cassette player. The device operates by converting the digital representation of the sound into magnetic signals which are presented to the read/write head of the cassette player equipment. The device allows the user of the cassette player to regulate the audio playback using conventional equipment controls such as: START, STOP, REWIND, FAST REWIND, FORWARD, FAST FORWARD, etc.
Type: Grant
Filed: July 29, 1999
Date of Patent: September 6, 2005
Inventors: Addison M. Fischer, Robert L. Protheroa

    Personal date/time notary device 
Patent number: 6865678
Abstract: A personal data/time notary device is embodied in a token device such as a “smart card”. The portable notary device includes an input/output (I/O) port, which is coupled to a single integrated circuit chip. The I/O port may be coupled to a conventional smart card reading device which in turn is coupled to a PC, lap-top computer or the like. A tamper resistant secret private key storage is embodied on the chip. The private key storage is coupled to the processor which, in turn, is coupled to a permanent memory that stores the program executed by the processor. At least one clock is embodied on the card. A second clock 14 and a random value generator 10 are also preferably coupled to the processor. The device combines digital time notarization into a digital signature operation to ensure that a time stamp is always automatically present. The user does not need to be involved in any additional decision making as to whether time stamping is necessary.
Type: Grant
Filed: May 8, 2002
Date of Patent: March 8, 2005
Inventor: Addison M. Fischer

    Personal date/time notary device
Publication number: 20030041246
Abstract: A personal data/time notary device is embodied in a token device such as a “smart card”. The portable notary device includes an input/output (I/O) port, which is coupled to a single integrated circuit chip. The I/O port may be coupled to a conventional smart card reading device which in turn is coupled to a PC, lap-top computer or the like. A tamper resistant secret private key storage is embodied on the chip. The private key storage is coupled to the processor which, in turn, is coupled to a permanent memory that stores the program executed by the processor. At least one clock is embodied on the card. A second clock 14 and a random value generator 10 are also preferably coupled to the processor. The device combines digital time notarization into a digital signature operation to ensure that a time stamp is always automatically present. The user does not need to be involved in any additional decision making as to whether time stamping is necessary.
Type: Application
Filed: May 8, 2002
Publication date: February 27, 2003
Inventor: Addison M. Fischer

    Personal date/time notary device
Patent number: 6408388
Abstract: A personal data/time notary device is embodied in a token device such as a “smart card”. The portable notary device includes an input/output (I/O) port, which is coupled to a single integrated circuit chip. The I/O port may be coupled to a conventional smart card reading device which in turn is coupled to a PC, lap-top computer or the like. A tamper resistant secret private key storage is embodied on the chip. The private key storage is coupled to the processor which, in turn, is coupled to a permanent memory that stores the program executed by the processor. At least one clock is embodied on the card. A second clock 14 and a random value generator 10 are also preferably coupled to the processor. The device combines digital time notarization into a digital signature operation to ensure that a time stamp is always automatically present. The user does not need to be involved in any additional decision making as to whether time stamping is necessary.
Type: Grant
Filed: July 30, 1999
Date of Patent: June 18, 2002
Inventor: Addison M. Fischer

    Method and system for mixed-mode electronic commerce processing of on-line orders 
Publication number: 20020010638
Abstract: A mixed-mode method and system for performing e-commerce transactions between a user and a vendor, including creating an order list in an off-line environment, sending the order list to the vendor, making the order list available to the user through a real-time connection with the vendor, establishing a real-time connection between the user and the vendor and enabling the user to review and approve the order list during the real-time connection. The order list is preferably created using an e-mail or word processing program on the user's computer and is sent to the vendor via e-mail. A web browser is then used to establish the on-line connection with the vendor's site to review and approve the off-line created order while on-line with the vendor Once the order is approved through the on-line process, the order is processed in a conventional manner to complete the transaction.
Type: Application
Filed: April 4, 2001
Publication date: January 24, 2002
Inventor: Addison M. Fischer

    Headphone device with improved controls and/or removable memory
Publication number: 20020003889
Abstract: A headphone system is provided that incorporates a removable memory card and memory card reader in an earpiece of the headset, in addition to a speaker. The other earpiece of the headset is used to house, in addition to a speaker, a power supply for the system, such as batteries. Various control devices are provided on the outside of the earpieces for enabling the user the control the playback, such as start/stop, power, volume, track, forward and reverse. In another embodiment, the memory media playback device and power supply, as well as all of the controls, are incorporated into the headband that connects the two earpieces. A microphone may also be used on the headset to enable the device to be used for dictation as well as playback of audio. A further embodiment is provided wherein a remote playback device is used to send wireless signals to the headset and/or receive wireless signals from the headset.
Type: Application
Filed: April 19, 2001
Publication date: January 10, 2002
Inventor: Addison M. Fischer

    Method for preventing inadvertent betrayal by a trustee of escrowed digital secrets
Patent number: 6216229
Abstract: The invention employs a voluntary identification/definition phase performed, for example, shortly after a computer is purchased, and a secret information retrieval phase. In the definition phase, the true owner/customer defines an escrow record which provides self-identification data together with encrypted password data. The present invention prompts a user to voluntarily escrow password or other secret information for later retrieval by entering a series of information uniquely describing himself or herself. The identification indicia is combined with the secret information (such as the user's encryption password) and is then encrypted under the control of the trustee's public key. The combined information may be encrypted, for example, under a random symmetric key (such as DES) which is then encrypted under the trustee's public key. After unique identification data has been entered, the user is asked to select a password to protect the system.
Type: Grant
Filed: July 17, 2000
Date of Patent: April 10, 2001
Inventor: Addison M. Fischer

    Method for preventing inadvertent betrayal by a trustee of escrowed digital secrets
Patent number: 6141423
Abstract: The invention employs a voluntary identification/definition phase performed, for example, shortly after a computer is purchased, and a secret information retrieval phase. In the definition phase, the true owner/customer defines an escrow record which provides self-identification data together with encrypted password data. The present invention prompts a user to voluntarily escrow password or other secret information for later retrieval by entering a series of information uniquely describing himself or herself. The identification indicia is combined with the secret information (such as the user's encryption password) and is then encrypted under the control of the trustee's public key. The combined information may be encrypted, for example, under a random symmetric key (such as DES) which is then encrypted under the trustee's public key. After unique identification data has been entered, the user is asked to select a password to protect the system.
Type: Grant
Filed: June 5, 1995
Date of Patent: October 31, 2000
Inventor: Addison M. Fischer

    Method and apparatus for validating travelling object-oriented programs with digital signatures
Patent number: 6105072
Abstract: A method of operating computers in accordance with an enhanced object-oriented programming methodology creates a framework for efficiently performing automated business transactions. The object-oriented programming methodology is used in conjunction with a travelling program, i.e., a digital data structure which includes a sequence of instructions and associated data which has the capability of determining at least one next destination or recipient for receiving the travelling program and for transmitting itself, together with all relevant data determined by the program to the next recipient or destination Using the methods described herein, the data is more closely bound to the program in such a way that objects may be most efficiently transferred from one computer user to another without the objects being previously known to the recipient computer user.
Type: Grant
Filed: April 2, 1997
Date of Patent: August 15, 2000
Inventor: Addison M. Fischer

    Personal date/time notary device 
Patent number: 5936149
Abstract: A personal data/time notary device is embodied in a token device such as a "smart card". The portable notary device includes an input/output (I/O) port, which is coupled to a single integrated circuit chip. The I/O port may be coupled to a conventional smart card reading device which in turn is coupled to a PC, lap-top computer or the like. A tamper resistant secret private key storage is embodied on the chip. The private key storage is coupled to the processor which, in turn, is coupled to a permanent memory that stores the program executed by the processor. At least one clock is embodied on the card. A second clock 14 and a random value generator 10 are also preferably coupled to the processor. The device combines digital time notarization into a digital signature operation to ensure that a time stamp is always automatically present. The user does not need to be involved in any additional decision making as to whether time stamping is necessary.
Type: Grant
Filed: June 2, 1995
Date of Patent: August 10, 1999
Inventor: Addison M. Fischer

    Method and apparatus for validating travelling object-oriented programs with digital signatures
Patent number: 5748960
Abstract: A method of operating computers in accordance with an enhanced object-oriented programming methodology creates a framework for efficiently performing automated business transactions. The object-oriented programming methodology is used in conjunction with a travelling program, i.e., a digital data structure which includes a sequence of instructions and associated data which has the capability of determining at least one next destination or recipient for receiving the travelling program and for transmitting itself, together with all relevant data determined by the program to the next recipient or destination. The data is closely bound to the program in such a way that objects may be most efficiently transferred from one computer user to another without the objects being previously known to the recipient computer user.
Type: Grant
Filed: December 18, 1996
Date of Patent: May 5, 1998
Inventor: Addison M. Fischer

    Method for protecting a volatile file using a single hash 
Patent number: 5694569
Abstract: The disclosed methodology permits an insecure computing system to safely perform high security electronic financial transactions. The present invention permits the hash of a file to be taken on an incremental basis. It permits any part of the file to be changed while allowing a new aggregate hash to be computed based on the revised file portion and the prior total hash. The aggregate hash is readily updatable with each record revision without having to recompute the hash of the entire file in accordance with conventional techniques. These objectives are accomplished using two functions. The first function is an effective one-way hash function "H" for which it is computationally impossible to find two data values that hash to the same result. The second function is a commutative and associative function "F" (and inverse "Finv") and provides a mechanism for combining the aggregate hash and the hash of updated records. Examples of these latter functions include exclusive OR ("XOR") and arithmetic addition.
Type: Grant
Filed: June 5, 1995
Date of Patent: December 2, 1997
Inventor: Addison M. Fischer

    Method for providing location certificates 
Patent number: 5659617
Abstract: Methods and apparatus for providing location certificates to certify the position or location of an object are disclosed. The position of the object is computed using radio signals and the secure transmission of the computed position is achieved using public key encryption techniques.
Type: Grant
Filed: September 22, 1994
Date of Patent: August 19, 1997
Inventor: Addison M. Fischer

    Method for protecting a volatile file using a single hash
Patent number: 5475826
Abstract: The present invention permits the hash of a file to be taken on an incremental basis. It permits any part of the file to be changed while allowing a new aggregate hash to be computed based on the revised file portion and the prior total hash. The aggregate has is readily updated with each record revision without having to recompute the hash of the entire file in accordance with conventional techniques. These objectives are accomplished using two functions. The first function is an effective one-way hash function "H" for which it is computationally impossible to find two data values that hash to the same result. The second function is a commutative and associative function "F" (and inverse "Finv") and provides a mechanism for combining the aggregate hash and the hash of updated records. Examples of these latter functions include exclusive OR ("XOR") and arithmetic addition. The hash of each file record and the has of an identification of the record (i.e.
Type: Grant
Filed: November 19, 1993
Date of Patent: December 12, 1995
Inventor: Addison M. Fischer

    Method for preventing inadvertent betrayal by a trustee of escrowed digital secrets
Patent number: 5436972
Abstract: The invention employs a voluntary identification/definition phase performed, for example, shortly after a computer is purchased, and a secret information retrieval phase. In the definition phase, the true owner/customer defines an escrow record which provides self-identification data together with encrypted password data. The present invention prompts a user to voluntarily escrow password or other secret information for later retrieval by entering a series of information uniquely describing himself or herself. The identification indicia is combined with the secret information (such as the user's encryption password) and is then encrypted under the control of the trustee's public key. The combined information may be encrypted, for example, under a random symmetric key (such as DES) which is then encrypted under the trustee's public key. After unique identification data has been entered, the user is asked to select a password to protect the system.
Type: Grant
Filed: October 4, 1993
Date of Patent: July 25, 1995
Inventor: Addison M. Fischer

    Method for providing location certificates
Patent number: RE38899
Abstract: Methods and apparatus for providing location certificates to certify the position or location of an object are disclosed. The position of the object is computed using radio signals and the secure transmission of the computed position is achieved using public key encryption techniques.
Type: Grant
Filed: August 19, 1999
Date of Patent: November 29, 2005
Inventor: Addison M. Fischer




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