Battery charging/data transfer apparatus for a handheld computer

• US 5,465,038 A
• Filed: 11/24/1993
• Issued: 11/07/1995
• Est. Priority Date: 11/24/1993
• Status: Expired due to Term

• Current Assignee: Dell USA LP (Dell Technologies Inc.)
• Original Assignee: Dell USA LP (Dell Technologies Inc.)
• Inventors: Register, David S.
• Primary Examiner(s): KINCAID, KRISTINE LYNN
• Application Number:
  US08/158,092
• Time in Patent Office: 713 Days
• Field of Search: 320/2, 455/79, 455/89, 455/90, 455/346, 455/348, 455/349, 235/375
• US Class Current: 710/1
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H04B 10/1143 Bidirectional transmission
• CPC Class Codes: H04B 10/40 Transceivers
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y10S 320/25 Optical coupler

Abstract

A battery charging/data transfer structure is provided for use in conjunction with a handheld computer to charge its battery and serve as an infrared data exchange interface between the handheld computer and a data input/output device such as a desktop computer. The structure includes a support housing having an inset well area configured to receive and releasably hold a portion of the handheld computer in a docked orientation. With the handheld computer in this docked orientation a battery charging contact member in the well area contacts a charging area on the received computer portion and transfers battery-charging electrical energy thereto. Additionally, a first I/R data transceiver in the docked computer is optically coupled, via a first interface window structure in the well area and a partially transmissive mirror structure in the housing, to a second I/R data transceiver disposed within the housing and connected to the data input/output device, thereby permitting infrared data exchange in either direction between the input/output device and the docked computer. A second interface window structure on the support housing, in conjunction with the partially transmissive mirror structure, also optically couples the first and second I/R transceivers when the computer is supported in an undocked position in which the first I/R transceiver is appropriately aligned with the second interface window structure.

Claims

1. Apparatus for facilitating data transfer between a data input/output device, such as a desktop computer, and a handheld computer having incorporated therein first transceiver means for transmitting and receiving a data-carrying infrared light beam, said apparatus comprising:

a support structure configured to releasably receive a portion of the handheld computer and support the handheld computer in a docked orientation, wherein said support structure has an inset well area disposed therein and configured to complementarily and releasably receive said portion of the handheld computer, said inset well area having an inner side wall.

second transceiver means, carried by said support structure and operably connectable to the data input/output device, for transmitting and receiving the data-carrying infrared light beam; and

coupling means, carried by said support structure, for optically coupling said first and second transceiver means, when the handheld computer is in said docked orientation thereof, in a manner such that the data carrying infrared light beam transmitted by one of said first and second transceiver means is received by the other of said first and second transceiver means;

wherein said coupling means include an I/R interface window structure disposed in said inner side wall, and

wherein said second transceiver means are inwardly spaced apart from said I/R interface window structure in a facing relationship therewith.

2. The apparatus of claim 1 wherein:

the handheld computer is powered by a rechargeable battery therein, and

said apparatus further comprises charging means carried by said support structure and operative to charge the battery in response to receipt of said portion of the handheld computer in said inset well area of said support structure.

3. The apparatus of claim 2 wherein:

the handheld computer has an external battery charging contact surface portion,

said inset well area has a battery charging contact member disposed on a surface thereof and positioned to engage the external battery charging contact surface portion of the handheld computer when the handheld computer is in said docked orientation thereof, and

said apparatus further comprises means for transmitting electrical charging power to said battery charging contact member.

4. Apparatus for facilitating data transfer between a data input/output device, such as a desktop computer, and a handheld computer having incorporated therein first transceiver means for transmitting and receiving a data-carrying infrared light beam, said apparatus comprising:

a housing structure having an external side wall;

second transceiver means, carried within said housing structure and operably connectable to the data input/output device, for transmitting and receiving the data-carrying infrared light beam; and

an I/R interface window structure carried on said external side wall of said housing structure and operative to permit the infrared light beam to pass therethrough, for optically coupling said first and second transceiver means, when the handheld computer is supported in a predetermined, spaced apart relationship with said housing structure, in a manner such that the data-carrying infrared light beam transmitted by one of said first and second transceiver means is received by the other of said first and second transceiver means.

5. Apparatus for facilitating data transfer between a data input/output device, such as a desktop computer, and a handheld computer having incorporated therein first transceiver means for transmitting and receiving a data-carrying infrared light beam through a first exterior portion of the handheld computer, said apparatus comprising:

a support structure comprising an inset well area disposed therein and configured to releasably receive a portion of the handheld computer and support the handheld computer in a docked orientation in which said first exterior portion of the handheld computer faces a first portion of said support structure, said inset well area having an inner side wall;

second transceiver means, carried by said support structure and operably connectable to the data input/output device, for transmitting and receiving the data-carrying infrared light beam; and

coupling means, carried by said support structure, comprising;

a first I/R interface window structure disposed in said inner side wall in a spaced apart relationship with said second transceiver means, for optically coupling said first and second transceiver means when said handheld computer is in said docked orientation; and

a second I/R interface window structure carried on an external wall portion of said support structure in a spaced apart relationship with said second transceiver means and said first I/R interface window structure and operative to permit the infrared light beam to pass therethrough when the handheld computer is in an undocked position in which said first exterior portion thereof faces said second I/R interface window structure.

6. The apparatus of claim 5 wherein said coupling means further include:

a partially transmissive mirror structure disposed within said support structure and operative to create an optical path between said second transceiver means and each of said first and second I/R interface window structures by intercepting the infrared light beam transmitted from said second transceiver means and directing portions of such beam outwardly through each of said first and second I/R interface window structures, and intercepting the infrared light beam passing inwardly through either of said first and second I/R interface window structures and directing a portion of said beam onto said second transceiver means.

7. The apparatus of claim 5 wherein:

the handheld computer is powered by a rechargeable battery therein, and

said apparatus further comprises charging means carried by said support structure and operative to charge the battery when the handheld computer is in said docked orientation thereof.

8. The apparatus of claim 7 wherein:

the handheld computer has an external battery charging contact surface portion,

said support structure has a battery charging contact member disposed on a surface thereof and positioned to engage the external battery charging contact surface portion of the handheld computer when the handheld computer is in said docked orientation thereof, and

said apparatus further comprises means for transmitting electrical charging power to said battery charging contact member.

9. Battery charging/data transfer apparatus for use in providing a data transfer interface between a data input/output device, such as a desktop computer, and a handheld computer having incorporated therein first transceiver means for transmitting and receiving a data-carrying infrared light beam through a first I/R interface window structure disposed in a first exterior portion of the handheld computer, the handheld computer being powered by a rechargeable battery therein and having an external battery charging contact surface portion, said battery charging/data transfer apparatus comprising:

a support housing structure having an inset well area disposed therein and configured to complementarily and releasably receive a portion of the handheld computer, including said first exterior portion thereof, and support the handheld computer in a docked orientation;

a second I/R interface window structure disposed in said inset well area and positioned to be in a facing, aligned relationship with said first I/R interface window structure when the handheld computer is in said docked orientation thereof;

a third I/R interface window structure, disposed on said support housing structure in a spaced apart relationship with said second I/R interface window structure;

second transceiver means, disposed within said support housing structure and operatively connectable to the data input/output device, for transmitting and receiving the data-carrying infrared light beam;

a battery charging contact member disposed on a surface of said inset well area and positioned to engage the external battery charging contact surface portion of the handheld computer when the handheld computer is in said docked orientation thereof;

means for transmitting electrical charging power to said battery charging contact member; and

coupling means carried within said support housing, said coupling means being operative to;

(1) optically couple said first and second transceiver means, via said second I/R interface window structure, when the handheld computer is in said docked orientation thereof, in a manner such that a portion of the data-carrying infrared beam transmitted by either of said first and second transceiver means is received by the other of said first and second transceiver means, and

(2) optically couple said first and second transceiver means, via said third I/R interface window structure, when the handheld computer is in an undocked position in which said first and third I/R interface window structures are in an aligned, facing relationship, in a manner such that the data-carrying infrared light beam transmitted by either of said first and second transceiver means is received by the other of said first and second transceiver means.

10. The battery charging/data transfer apparatus of claim 9 wherein said coupling means include a partially transmissive mirror structure interposed between said second transceiver means and said second I/R interface window structure.

11. The battery charging/data transfer apparatus of claim 10 wherein:

said apparatus further comprises a printed circuit board disposed in said support housing structure and having a side surface facing said second I/R interface window structure, a power/data cable operatively connectable between said printed circuit board and said data input/output device, and a battery charging power cable interconnected between said printed circuit board and said battery charging contact member, and

said second transceiver means are disposed on said side surface of said printed circuit board in a facing, spaced apart relationship with said second I/R interface window structure.

12. The battery charging/data transfer apparatus of claim 11 wherein:

said inset well area extends downwardly from a top side portion of said support housing structure,

said second I/R interface window structure is disposed on a bottom side wall portion of said inset well area, and

said third I/R interface window structure is disposed on a vertically extending exterior side wall portion of said support housing structure.

13. The battery charging/data transfer apparatus of claim 9 wherein:

said second and third I/R interface window structures include openings formed in wall portions of said support housing structure.

14. The battery charging/data transfer apparatus of claim 13 wherein:

said second and third I/R interface window structures further include lenses supported in said wall portion openings in said support housing structure.

15. Apparatus for facilitating data transfer between a data input/output device, such as a desktop computer, and a handheld computer having incorporated therein first transceiver means for transmitting and receiving a data-carrying infrared light beam, said apparatus comprising:

a housing structure having an external side wall;

second transceiver means, carried within said housing structure and operably connectable to the data input/output device, for transmitting and receiving the data-carrying infrared light beam; and

coupling means, carried by said housing structure, for optically coupling said first and second transceiver means, when the handheld computer is supported in a predetermined, spaced apart relationship with said housing structure, in a manner such that the data-carrying infrared light beam transmitted by one of said first and second transceiver means is received by the other of said first and second transceiver means;

wherein said coupling means include;

said I/R interface window structure carried on external side wall of said housing structure and operative to permit the infrared light beam to pass therethrough, and

reflector means disposed within said housing structure and operative to reflect the infrared light beam from one of said second transceiver means and said I/R interface window structure to the other of said second transceiver means and said I/R interface window structure.

16. Apparatus for facilitating data transfer between a data input/output device, such as a desktop computer, and a handheld computer having incorporated therein first transceiver means for transmitting and receiving a data-carrying infrared light beam through a first exterior portion of the handheld computer, said apparatus comprising:

a support structure configured to releasably receive a portion of the handheld computer and support the handheld computer in a docked orientation in which said first exterior portion of the handheld computer faces a first portion of said support structure;

second transceiver means, carried by said support structure and operably connectable to the data input/output device, for transmitting and receiving the data-carrying infrared light beam; and

coupling means, carried by said support structure, for optically coupling said first and second transceiver means when said handheld computer is in said docked orientation and when the handheld computer is in an undocked position in which said first exterior portion thereof faces a second portion of said support structure, said coupling means including;

a first I/R interface window structure disposed in said first portion of said support structure in a spaced apart relationship with said second transceiver means,

a second I/R interface window structure disposed in said second portion of said support structure in a spaced apart relationship with said second transceiver means and said first I/R interface window structure; and

a partially transmissive mirror structure disposed within said support structure and operative to create an optical path between said second transceiver means and each of said first and second I/R interface window structures by intercepting the infrared light beam transmitted from said second transceiver means and directing portions of said beam outwardly through each of said first and second I/R interface window structures, and intercepting the infrared light beam passing inwardly through either of said first and second I/R interface window structures and directing a portion of said beam onto said second transceiver means.

17. The apparatus of claim 16, wherein:

the handheld computer is powered by a rechargeable battery therein, and

said apparatus further comprises charging means carried by said support structure and operative to charge the battery when the handheld computer is in said docked orientation thereof.

18. The apparatus of claim 17, wherein:

the handheld computer has an external battery charging contract surface portion,

said support structure has a battery charging contact member disposed on a surface thereof and positioned to engage the external battery charging contact surface portion of the handheld computer when the handheld computer is in said docked orientation thereof, and

said apparatus further comprises means for transmitting electrical charging power to said battery charging contact member.