USB to multiple connect and support bays for peripheral devices

• US 5,841,424 A
• Filed: 03/03/1997
• Issued: 11/24/1998
• Est. Priority Date: 03/03/1997
• Status: Expired due to Term

• Current Assignee: JDS Fitel, Inc. (Lumentum Holdings Inc.), Technology Properties Limited LLC
• Original Assignee: Lextron Systems, Inc.
• Inventors: Kikinis, Dan
• Primary Examiner(s): Luu, Matthew
• Application Number:
  US08/811,118
• Time in Patent Office: 631 Days
• Field of Search: 345/168, 345/169, 345/156, 345/901, 345/903, 345/905, 345/527, 345/200.51, 345/200.6, 345/281, 345/282, 345/284, 345/285, 345/286, 364/708
• US Class Current: 345/168
• CPC Class Codes: G06F 3/021 Arrangements integrating additional peripherals in a keyboard, e.g. card or barcode reader, optical scanner
• 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

Abstract

A keyboard compatible with Universal Serial Bus protocol has multiple bays with physical engagement interfaces and electrical connectors for supporting serial-compatible peripheral devices. Identical bays in the keyboard, having a common physical shape and electrical pin matrix, are adapted to specific peripheral devices by use of adapters that interface both with the generic bay and the specific peripheral device. Translation between USB protocol and standard serial protocol is accomplished by enhancements to a keyboard controller in the keyboard that also serves conventional keyboard functions.

Claims

1. A docking station for computer peripherals, comprising:

a Universal Serial Bus (USB) communication link adapted to connect to a USB node;

translator circuitry coupled to the USB communication link;

an industry standard serial communication link other than USB coupled to the translator circuitry, and adapted to communicate by industry standard serial code other than USB code; and

a docking bay adapted to physically support and electrically connect an industry standard serial computer peripheral device other than USB to the industry standard serial communication link other than USB;

wherein the translator circuitry is adapted to translate the industry standard serial code other than USB into USB code and USB code into the Industry Standard serial code other than USB in a bidirectional manner between the industry standard serial communication link other than USB and the USB communication link.

2. The docking station of claim 1 comprising multiple docking bays each coupled by the industry standard serial communication link other than USB to the translator circuitry.

3. The docking station of claim 2 wherein the multiple docking bays are each connected to a multiplexer and the translator circuitry is connected to the multiplexer by the industry standard serial communication link other than USB and select-signal lines, and wherein communication is switched on a rotating basis to the docking bays.

4. The docking station of claim 1 further comprising a power pin at the docking bay adapted to provide a voltage to recharge power storage units in the computer peripherals.

5. The docking station of claim 2 further comprising at least one adapter configured to plug into any one of the docking bays and to provide a physical interface and an electrical connector to support a specific peripheral device.

6. The docking station of claim 5 wherein the at least one adapter comprises a charge adapter circuit adapted to accept power from a docking port at one voltage and to provide power therefrom to the electrical connector at a second voltage required by the specific peripheral device.

7. The docking station of claim 1 comprising a Universal Serial Bus (USB) keyboard, wherein the translator and at least one industry standard serial port other than USB are implemented as part of the keyboard controller.

8. A PC Universal-Serial-Bus-compatible keyboard, comprising:

a Universal Serial Bus (USB) communication link adapted to connect an on-board keyboard controller to a USB node;

translator circuitry implemented as a part of the on-board keyboard controller and coupled to the USB communication link;

an industry standard serial communication link other than USB coupled to the translator circuitry; and

a docking bay adapted to physically and electrically connect an industry standard serial computer peripheral device other than USB to the industry standard serial communication link other than USB;

wherein the translator circuitry is adapted to translate industry standard serial code other than USB code to USB code and USB code to industry standard serial code other than USB in a bi-directional manner between the USB link and the industry standard serial communication link other than USB.

9. The keyboard of claim 8 further comprising multiple docking bays each coupled by the industry standard serial communication link other than USB to the translator circuitry.

10. The keyboard of claim 9 wherein the multiple docking bays are each connected to a multiplexer and the translator circuitry is connected to the multiplexer by the industry standard serial communication link other than USB and select-signal lines, and wherein communication is switched on a rotating basis to the docking bays.

11. The keyboard of claim 8 further comprising a power pin at the docking bay adapted to provide a voltage to recharge power storage units in the industry standard serial computer peripheral device other than USB.

12. The keyboard of claim 9 further comprising at least one adapter configured to plug into any one of the docking bays and to provide a physical interface and an electrical connector to support a specific peripheral device.

13. The keyboard of claim 12 wherein the at least one adapter comprises a charge adapter circuit configured to accept power from a docking port at one voltage and to provide power therefrom to the electrical connector at a second voltage required by the specific peripheral device.

14. A method for connecting multiple computer devices adapted to communicate on industry standard serial protocol other than USB protocol to a single Universal Serial Bus (USB) node, comprising steps of:

(a) connecting a USB link to a translator adapted to translate bidirectionally between industry standard serial protocol other than USB protocol and USB protocol;

(b) connecting an industry standard serial communication link other than USB to the translator;

(c) connecting a docking bay for the industry standard serial peripheral computer device to the industry standard serial communication link other than USBF.

15. The method of claim 14 wherein, in step (c), multiple docking bays are connected to the translator.