Field programming apparatus and method for updating programs in a personal communications device

• US 5,590,373 A
• Filed: 07/25/1994
• Issued: 12/31/1996
• Est. Priority Date: 07/25/1994
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Springfield, Randall S., Hudson, Harold D., Allard, David J., Canova, Francis J. Jr., Hsieh, Daniel Ming-Te, Goodwin, Julie F., Tiller, Byron K., Whitley, Wayne P., Murakami, Thomas T.
• Primary Examiner(s): Beausoliel, Jr., Robert W.
• Assistant Examiner(s): HUA, LY
• Application Number:
  US08/279,638
• Time in Patent Office: 890 Days
• Field of Search: 395/828, 395/830, 395/833, 395/882, 395/892, 395/282, 395/185.01, 395/185.02, 395/185.05, 395/185.07, 395/750
• US Class Current: 710/8
• CPC Class Codes: G06F 8/65 Updates security arrangements therefor G06F21/57
• CPC Class Codes: H04W 88/00 Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices

Abstract

A field programming tool for a personal communications device, provides an automatic, capability to update computer programs stored in the device. The personal communications device includes an electrically programmable read only memory (EPROM), that stores the operating system programs and the applications programs to be loaded into a random access memory (RAM) for executed by a central processing unit (CPU) in the device. A reprogramming card is provided for the device, containing pre-stored new programs that are to be loaded into the EPROM of the device. A method is provided for automatically loading the new programs from the reprogramming card into the EPROM, in an accurate, foolproof manner. This is accomplished using a sequencing program stored on the reprogramming card and loaded into the RAM of the device, where it is executed. An option attach connector alerts the device that the reprogramming card is connected to the PCMCIA slot of the device. It'"'"'s presence is a signal to the device to begin the automatic operation of reprogramming the EPROM with the new programs stored in the reprogramming card, using the sequencing program in the reprogramming card.

Claims

1. A field programing subsystem for a portable communications device that includes an electrically programmable data storage, comprising:

a decoding means coupled to a programming voltage source and the programmable data storage, for selectively applying a programming voltage to the programmable data storage;

an option connector receptacle coupled to said decoding means;

a first option attach connector, for selective connection to said option connector receptacle;

a first connector identification means included with said first option attach connector, for identifying said first option attach connector to said decoding means, and in response thereto, said decoding means causing said programming voltage to be applied to said programmable data storage;

an auxiliary device receptacle coupled to the programmable data storage;

an auxiliary memory device, including auxiliary data, for selective connection to said auxiliary device receptacle;

said first connector identification means of said first option attach connector, identifying said auxiliary memory device to said decoding means, and in response thereto, said decoding means causing said auxiliary data to be stored in said programmable data storage.

2. The field programming subsystem for a portable communications device of claim 1, that further comprises:

a voltage regulating means in said first option attach connector, coupled to said programming voltage source, for providing a regulated voltage as said programming voltage.

3. The field programming subsystem for a portable communications device of claim 1, that further comprises:

a central processing unit coupled to said decoding means in said portable communications device, for executing programs stored in said portable communications device;

said central processing unit accessing a reprogramming sequencing program stored in said auxiliary storage device, in response to said detection means detecting first connector identification means of said first option attach connector;

said central processing unit executing said sequencing program to store said auxiliary data in said programmable data storage.

4. The field programming subsystem for a portable communications device of claim 3, that further comprises:

a voltage regulating means in said first option attach connector, coupled to said programming voltage source, for providing a regulated voltage as said programing voltage;

said central processing unit causing control signals to be sent to said voltage regulating means in response to executing said sequencing program, to control application of said programming voltage to said programmable data storage while storing said auxiliary data.

5. The field programming subsystem for a data processing device of claim 3, that further comprises:

a signal regulating means in said first option attach connector, coupled to said programming signal source, for providing a regulated signal as said programming signal;

said central processing unit causing control signals to be sent to said signal regulating means in response to executing said sequencing program, to control application of said programming signal to said programmable data storage while storing said auxiliary data.

6. A field programming subsystem for a portable communications device that includes an electrically programmable data storage, comprising:

a decoding means coupled to a programming voltage source and the programmable data storage, for selectively applying a programming voltage to the programmable data storage;

an option connector receptacle coupled to said decoding means;

a first option attach connector, for selective connection to said option connector receptacle;

a first connector identification means included with said first option attach connector, for identifying said first option attach connector to said decoding means, and in response thereto, said decoding means causing said programming voltage to be applied to said programmable data storage;

a second option attach connector connected to an external device, for selective connection to said option connector receptacle;

a second connector identification means included with said second option attach connector, for identifying said second option attach connector to said decoding means, and in response thereto,

said decoding means coupling said external device to said portable communications device.

7. The field programming subsystem for a portable communications device of claim 6, that further comprises:

an auxiliary device receptacle coupled to the programmable data storage;

an auxiliary memory device, including auxiliary data, for selective connection to said auxiliary device receptacle;

said first connector identification means of said first option attach connector, identifying said auxiliary memory device to said decoding means, and in response thereto, said decoding means causing said auxiliary data to be stored in said programmable data storage.

8. The field programming subsystem for a portable communications device of claim 7, that further comprises:

a voltage regulating means in said first option attach connector, coupled to said programming voltage source, for providing a regulated voltage as said programming voltage.

9. The field programming subsystem for a portable communications device of claim 7, that further comprises:

a central processing unit coupled to said decoding means in said portable communications device, for executing programs stored in said portable communications device;

said central processing unit accessing a reprogramming sequencing program stored in said auxiliary storage device, in response to said detection means detecting first connector identification means of said first option attach connector;

said central processing unit executing said sequencing program to store said auxiliary data in said programmable data storage.

10. The field programming subsystem for a portable communications device of claim 9, that further comprises:

a voltage regulating means in said first option attach connector, coupled to said programming voltage source, for providing a regulated voltage as said programming voltage;

said central processing unit causing control signals to be sent to said voltage regulating means in response to executing said sequencing program, to control application of said programming voltage to said programmable data storage while storing said auxiliary data.

11. The field programming subsystem for a portable communications device of claim 10, that further comprises:

a switch means coupled to said central processing unit and to said voltage regulator means, for selectively applying said programming voltage to a first programmable data storage or to a second programmable data storage in said portable communications device, in response to options information stored in said auxiliary memory device.

12. A field programming subsystem for a data processing device that includes a programmable data storage, comprising:

a decoding means coupled to a programming signal source and the programmable data storage, for selectively applying a programming signal to the programmable data storage;

an option connector receptacle coupled to said decoding means;

a first option attach connector, for selective connection to said option connector receptacle;

a first connector identification means included with said first option attach connector, for identifying said first option attach connector to said decoding means, and in response thereto, said decoding means causing said programming signal to be applied to said programmable data storage;

an auxiliary device receptacle coupled to the programmable data storage;

an auxiliary memory device, including auxiliary data, for selective connection to said auxiliary device receptacle;

said first connector identification means of said first option attach connector, identifying said auxiliary memory device to

said decoding means, and in response thereto, said decoding means causing said auxiliary data to be stored in said programmable data storage.

13. The field programming subsystem for a data processing device of claim 12, that further comprises:

a signal regulating means in said first option attach connector, coupled to said programming signal source, for providing a regulated signal as said programming signal.

14. The field programming subsystem for a data processing device of claim 12, that further comprises:

a central processing unit coupled to said decoding means in said data processing device, for executing programs stored in said data processing device;

said central processing unit accessing a reprogramming sequencing program stored in said auxiliary storage device, in response to said detection means detecting first connector identification means of said first option attach connector;

said central processing unit executing said sequencing program to store said auxiliary data in said programmable data storage.