Method and apparatus for software based wireless remote control of electronic devices

• US 5,774,063 A
• Filed: 12/14/1995
• Issued: 06/30/1998
• Est. Priority Date: 12/14/1995
• Status: Expired due to Term

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Berry, Richard Edmond, Edrington, Jimmie Darius
• Primary Examiner(s): Horabik, Michael
• Assistant Examiner(s): Beaulieu, Yonel
• Application Number:
  US08/572,473
• Time in Patent Office: 929 Days
• Field of Search: 340/825.69, 340/825.71, 340/825.72, 340/825.22, 340/825.24, 340/825.25, 348/164, 348/163, 348/734, 341/176, 359/142, 359/145, 359/148
• US Class Current: 340/4.37
• CPC Class Codes: G06F 3/023 Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
• CPC Class Codes: G06F 3/0231 Cordless keyboards
• CPC Class Codes: G06F 3/033 Pointing devices displaced or positioned by the user , e.g. mice, trackballs, pens or joysticks; Accessories therefor digitisers characterised by the transducing means G06F3/041

Abstract

A method and apparatus for remote control of electronic devices includes one or more processing units, a memory system, one or more I/O controllers, controlling various input/output devices such as a keyboard, a mouse, a display device, communications adapters and the like, a bus which connects the processing units, the memory system, and the I/O controllers, one or more transducers adapted to convert electronic signals to wireless communications signals and one or more application programs executable by the processor units for controlling generation and transmission of wireless communications signals for remote control of one or more electronic devices. A typical application is the control of transmission of infrared signals to remotely control consumer electronics equipment.

Claims

1. Apparatus, for remote control of electronic devices, comprising:

one or more processing units;

a memory system;

one or more I/O controllers;

a bus connecting the processing units, the memory system, and the I/O controllers;

one or more transducers, adapted to convert electronic control signals to wireless communications signals;

one or more application programs executable by said one or more processing units for controlling generation and transmission of wireless communications signals for remote control of one or more electronic devices; and

one or more tables associated with each application program, wherein each table contains data used by the associated application program for generation of the electronic control signals which are converted by the one or more transducers to wireless communications signals.

2. Apparatus, according to claim 1, wherein the I/O controllers comprise means for controlling input/output devices.

3. Apparatus, according to claim 1, wherein the one or more transducers comprise:

at least one infrared emitting device.

4. Apparatus, according to claim 1, wherein the one or more transducers comprise:

at least one wireless radio frequency transmitting device.

5. Apparatus, according to claim 1, wherein the one or more transducers comprise:

at least one infrared emitting device; and

at least one wireless radio frequency transmitting device.

6. Apparatus, according to claim 1, further comprising means for conducting the wireless communication signals from the transducer to a point in direct line of sight of a detector in an electronic device subject to remote control.

7. Apparatus, according to claim 1, wherein the data used by the associated application program comprises:

pulse sequence and timing data necessary for generation of electronic signals for each of the one or more electronic devices.

8. A method of generating wireless communications signals, comprising the steps of:

setting a command pointer to a starting command in a table, wherein said table is comprised of one or more commands;

programming a timer interrupt to a remote carrier frequency; and

passing control to a timer interrupt routine at specified time intervals, wherein the timer interrupt routine performs the steps of;

reading a command from the table;

determining, based on the command, if a state of a transmission signal should be changed; and

changing the state of the transmission signal if it is determined during said determining step that the state of the transmission signal should be changed.

9. A method of generating wireless communications signals according to claim 8, wherein said determining step comprises the steps of:

incrementing a remote timer; and

determining if the remote timer is equal to a value pointed to by the command pointer.

10. A method of generating wireless communications signals according to claim 8, further comprising the step of testing a busy flag to determine if a wireless communications signal is currently being transmitted.

11. A method of generating wireless communications signals according to claim 8, wherein the commands in the command table comprise pulse sequence and timing data necessary for generation of electronic signals to be converted by one or more transducers to the wireless communications signals.

12. A method of generating wireless communications signals according to claim 8, wherein said changing step comprises the steps of:

changing a state of an LED flag; and

changing a state of a speaker.

13. A method of generating wireless communications signals according to claim 8, wherein said changing step comprises the steps of:

clearing an LED flag; and

disabling a speaker.

14. A method of generating wireless communications signals according to claim 8, wherein said changing step comprises the steps of:

setting an LED flag; and

enabling a speaker.