US 12,260,885 B2
Disk device having components that communicate with each other via conversion devices
Taichi Okano, Yokohama Kanagawa (JP); Jia Liu, Yokohama Kanagawa (JP); Masahide Takazawa, Yokohama Kanagawa (JP); Nobuhiro Takazawa, Yokohama Kanagawa (JP); and Kota Tokuda, Yokohama Kanagawa (JP)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (JP); and Toshiba Electronic Devices & Storage Corporation, Tokyo (JP)
Filed by Kabushiki Kaisha Toshiba, Tokyo (JP); and Toshiba Electronic Devices & Storage Corporation, Tokyo (JP)
Filed on Sep. 8, 2021, as Appl. No. 17/469,410.
Claims priority of application No. 2021-044837 (JP), filed on Mar. 18, 2021.
Prior Publication US 2022/0301595 A1, Sep. 22, 2022
Int. Cl. G11B 33/12 (2006.01); G06F 3/06 (2006.01); G11B 25/04 (2006.01); G11B 33/02 (2006.01); H05K 1/11 (2006.01)
CPC G11B 33/122 (2013.01) [G06F 3/0676 (2013.01); G11B 25/043 (2013.01); G11B 33/022 (2013.01); G11B 33/124 (2013.01); H05K 1/118 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A disk device comprising:
a chassis;
a recording medium having a disk form, located inside the chassis, and including a recording layer;
a magnetic head located inside the chassis, the magnetic head configured to read and write information from and to the recording medium;
a first conversion device that emits light corresponding to an electric signal;
a second conversion device that generates an electric signal corresponding to incident light
an optical waveguide including a first end joined to the first conversion device, and a second end joined to the second conversion device, the optical waveguide transmitting light emitted from the first conversion device to the second conversion device;
a first component electrically connected to the first conversion device; and
a second component electrically connected to the second conversion device, the second component communicating with the first component through the first conversion device, the optical waveguide, and the second conversion device,
wherein the first conversion device emits light corresponding to one of:
a first electric signal representing information to be written to the recording medium by the magnetic head, and
a second electric signal representing information read from the recording medium by the magnetic head,
the second conversion device generates the one of the first electric signal and the second electric signal corresponding to the light emitted from the first conversion device,
one of a first group including the first conversion device, the first end, and the first component, and a second group including the second conversion device, the second end, and the second component is located outside the chassis, and
the other of the first group and the second group is located inside the chassis.