# US 10,769,086 B2 · Recording medium, adapter, and information processing apparatus

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- Number: US 10,769,086 B2
- Document ID: US10769086B2
- Status: Granted
- Kind: B2
- Application number: 15/428,277
- Filed: 2017-02-09
- Published: 2017-06-01
- Granted: 2020-09-08
- Earliest claimed: 2014-08-21
- Assignees: Panasonic Intellectual Property Management Co., Ltd.
- Applicants: Panasonic Intellectual Property Management Co., Ltd.
- Inventors: Hideaki Yamashita; Takeshi Otsuka; Masanori Mitsuzumi
- Web page: https://patentgrep.com/patent/US10769086B2

## CPC

- G06F 13/385: {for adaptation of a particular data processing system to different peripheral devices}
- G06F 13/14: Handling requests for interconnection or transfer
- G06F 13/16: for access to memory bus (G06F13/28 takes precedence)
- G06F 13/4022: {using switching circuits, e.g. switching matrix, connection or expansion network (G06F13/4009 takes precedence)}
- G06F 13/4282: {on a serial bus, e.g. I2C bus, SPI bus (on daisy chain buses G06F13/4247)}
- H04N 5/907: using static stores, e.g. storage tubes or semiconductor memories (H04N5/91 takes precedence)
- G06F 2213/0026: PCI express
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A recording medium to be used by being connected to a digital device includes a local bus, a plurality of recording units, an information storage unit, and a communication unit. The local bus has a plurality of switches or bridges. The plurality of recording units are connected to the local bus. The information storage unit stores information indicating a bus configuration of the local bus. The communication unit is used for transferring the information to and from the digital device. After the recording medium is inserted into the digital device, the bus configuration of the local bus is reconstructed based on the information acquired from the communication unit via the information storage unit by the digital device.

## Claims

### Claim 1

A recording medium which is connectable to a digital device, the recording medium comprising:
a local bus including a plurality of switches or bridges and connected to the digital device;
a plurality of recorders connected to the local bus, the local bus distributed into a number of buses so that the plurality of recorders connects to the digital device via the plurality of switches or bridges;
an information storage which stores information indicating a bus configuration of the local bus, the bus configuration includes the number of buses; and
a communication bus connected to the information storage and configured to transfer the information to the digital device, wherein the communication bus is different from the local bus,
wherein, after insertion of the recording medium into the digital device is detected, a subordinate bus number of each of the plurality of switches or bridges is set based on the information indicating the bus configuration acquired from the information storage via the communication bus by the digital device including setting the subordinate bus number to the number of buses.

### Claim 2 (depends on 1)

The recording medium according to claim 1, wherein the local bus is a PCI bus or a PCIe bus.

### Claim 3 (depends on 2)

The recording medium according to claim 2, wherein the communication bus is a sideband bus different from the PCI bus or the PCIe bus.

### Claim 4

An adapter in which a recording medium is inserted and removed, the recording medium including multiple recording units, a local bus, an information storage and a communication bus, the local bus including a plurality of switches or bridges, the local bus distributed into a number of buses such that the multiple recording units connect to the adapter via the plurality of switches or bridges, the information storage stores information indicating a bus configuration of the local bus, the bus configuration includes the number of buses, and the communication bus being different from the local bus and configured to transfer the information to the adapter, the adapter comprising:
a processor configured to:
set a bus number from a root bus for each of the plurality of switches or bridges to construct a bus configuration, and
acquire the information indicating the bus configuration from the information storage via the communication bus; and
a detector configured to detect insertion and removal of the recording medium to and from the adapter;
wherein, after insertion of the recording medium is detected by the detector, the processor configured to set a subordinate bus number of each of the plurality of switches or bridges based on the information indicating the bus configuration acquired via the communication bus including setting the subordinate bus number to the number of buses, and then reconstruct the bus configuration.

### Claim 5 (depends on 4)

An information processing apparatus comprising:
a host device having an interface;
the adapter according to claim 4, which is connected to the host device via the interface; and
the recording medium according to claim 4.

### Claim 6 (depends on 5)

The information processing apparatus according to claim 5, wherein the digital device is configured by the host device and the adapter.