Low profile circular dongle
A mobile peripheral adapter rotationally couples first and second circular housings with a spindle to define and cable cavity. A cable retracts into and extends from the cable cavity by rotation of the housing portions to bring a cable connector into the cable cavity at an opening formed to align with the cable connector at retraction. First and second magnets disposed in the cable cavity retrain the cable connector when retracted. The opening at the bottom surface of the peripheral adapter reduces the vertical height of the cable cavity by providing vertical space within which the cable connector can reside.
1. A mobile peripheral adapter comprising:
a first circular housing portion having plural port openings;
plural ports disposed at the plural port openings, each port operable to accept a predetermined cable plug;
a second circular housing portion rotationally coupled to the first circular housing portion, the second circular portion having an outer wall and bottom surface that define a cable cavity; and
a cable disposed between the first and second circular housings in the cable cavity, the cable winding to a stored position when the first and second housing portions rotate in a first direction and to an extended position when the first and second housing portions rotate in a second direction, the cable terminating with a connector having a height, width and length;
wherein the second circular housing portion bottom surface has an opening of the cable connector length and width aligned at a position corresponding to the cable connector when the cable retracts into the cable cavity.
2. The mobile peripheral adapter of claim 1 further comprising:
a ferromagnetic material disposed in the cable connector;
a first magnet disposed at the cable cavity proximate the opening to bias the cable connector towards the center of the cable cavity; and
a second magnet disposed at the cable cavity proximate the opening to bias the cable connector towards the first circular housing.
3. The mobile peripheral adapter of claim 2 wherein the second magnet biases the cable connector against an upper surface where the height of the cable connector provides at least a minimal spacing of the cable connector above the second circular housing portion bottom surface.
4. The mobile peripheral adapter of claim 3 further comprising a spindle portion disposed between the first and second circular housing portions and configured to rotate the first circular housing portion relative to the second circular housing portion.
5. The mobile peripheral adapter of claim 4 wherein the first and second magnets integrate in the spindle portion.
6. The mobile peripheral adapter of claim 5 further comprising first and second bumper feet coupled to the second circular housing portion bottom surface.
7. The mobile peripheral adapter of claim 6 wherein the second circular housing bottom surface has a central open through which the spindle portion rotationally couples.
8. The mobile peripheral adapter of claim 7 wherein the cable connector is a Universal Serial Bus compliant connector and the plural ports include at least a networking portion and a graphics port.
9. The mobile peripheral adapter of claim 8 further comprising:
one or more circuit boards interfacing the cable and the plural ports;
wherein the cable couples to the one or more circuit boards through the spindle.
10. A method for managing a cable connector at a mobile peripheral adapter, the method comprising:
engaging a cable in a cable adapter of the mobile peripheral adapter, the cable terminating with a cable connector;
rotating first and second portions of the mobile peripheral adapter relative to each other to work the cable with the cable adapter into a cavity of the mobile peripheral adapter second portion; and
aligning the cable connector upon retraction of the cable with an opening formed in a bottom surface of the mobile peripheral adapter second portion.
11. The method of claim 10 wherein:
the cable connector has a length, width and height; and
the opening formed in the bottom surface has a length and width of at least the cable connector length and width.
12. The method of claim 11 wherein:
the mobile peripheral adapter retracts the cable into a cavity formed in the second portion and having a height; and
the cavity height is substantially equal to the cable connector height.
13. The method of claim 12 further comprising:
biasing the cable connector inward towards the cavity center with a first magnet; and
biasing the cable connector upward towards the cavity upper surface with a second magnet.
14. The method of claim 13 wherein the cable cavity has a height substantially equal to the height of the cable connector.
15. The method of claim 14 wherein the cable connector comprises a Universal Serial Bus connector.
16. The method of claim 15 wherein the cable interfaces with at least a graphics port and a networking port disposed in the first portion.
17. A mobile peripheral adapter comprising:
a first circular housing having plural port openings;
one or more circuit boards disposed in the first circular housing;
plural ports coupled to the one or more circuit boards, each port aligned with a port opening;
a spindle coupled to the first circular housing and having a cable adapter;
a second circular housing having a bottom surface and a circular side wall, the second circular housing coupled to the first circular housing by the spindle, the spindle providing rotation of the first and second circular housing relative to each other, the second circular housing defining a cable cavity between the bottom surface and the spindle, the cable cavity capturing the cable adapter; and
a cable coupled through the spindle to the one or more circuit boards and terminating in a cable connector having a length, width and height;
wherein the second circular housing bottom has an opening of at least the cable connector length and width, the cable extending from the cable cavity and retracting into the cable cavity in response to rotation of the first and second housing portions relative to each other, the cable retracting to align the cable connector with the opening.
18. The mobile peripheral adapter of claim 17 wherein the cable cavity has a height of substantially the cable connector height.
19. The mobile peripheral adapter of claim 18 further comprising:
a first magnet coupled to the cable adapter to align with the opening when the cable connector retracts into the opening; and
a second magnet coupled to the spindle to align over the opening when the cable connector retracts into the opening;
wherein the cable connector integrates ferromagnetic material attracted to the first and second magnets.
20. The mobile peripheral adapter of claim 19 wherein the cable connector comprises a Universal Serial Bus cable connector.