# US 2014/0194060 A1 · Communication apparatus, communication method, and program for exchanging data with a target > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0194060 A1 - Document ID: US20140194060A1 - Status: Published application - Kind: A1 - Application number: 14/204,626 - Filed: 2014-03-11 - Published: 2014-07-10 - Earliest claimed: 2010-11-29 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Katsuyuki TERUYAMA - Web page: https://patentgrep.com/patent/US20140194060A1 ## CPC - H04W 4/00: Services specially adapted for wireless communication networks; Facilities therefor - H04W 4/50: Service provisioning or reconfiguring - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - H04B 5/26: using coils - H04B 5/45: Transponders - H04L 69/24: Negotiation of communication capabilities - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A communication device includes a first processing unit that detects a target and receives a first command for activating an interface upon a detection of the target. The communication device also includes a second processing unit that exchanges data with the target through the first processing unit. Further, the communication device includes an interface between the first processing unit and the second processing unit. The first processing unit selects a predetermined interface level from among a plurality of interface levels based on the first command and exchanges data with the second processing unit based on the predetermined interface level. ## Claims ### Claim at position 1 1-20. (canceled) ### Claim 21 A communication device, comprising: first processing circuitry configured to receive a first command upon a detection of the target; and second processing circuitry configured to exchange data with a target through the first processing circuitry, wherein the first processing circuitry is further configured to select a predetermined interface level from among a plurality of interface levels based on the first command and to exchange data with the second processing circuitry based on the predetermined interface level. ### Claim 22 (depends on 21) The communication device according to claim 21, wherein the predetermined interface level is selected based on an RF protocol used in a communication between the target and the first processing circuitry. ### Claim 23 (depends on 22) The communication device according to claim 22, wherein the first processing circuitry is further configured to transmit a second command and to receive a third command in response to the second command, the third command indicating the RF protocol. ### Claim 24 (depends on 23) The communication device according to claim 23, wherein the first processing circuitry is further configured to receive from the second processing circuitry a fourth command, the fourth command associating the RF protocol with the predetermined interface level. ### Claim 25 (depends on 23) The communication device according to claim 23, wherein the first processing circuitry is further configured to send a fifth command based on the first command, the fifth command indicating the predetermined interface level. ### Claim 26 (depends on 25) The communication device according to claim 25, wherein the first processing circuitry is further configured to start and execute an application based on the predetermined interface level, the application being configured to exchange data between the second processing circuitry and the target using the RF protocol. ### Claim 27 (depends on 22) The communication device according to claim 22, wherein the first processing circuitry is further configured to receive a second command, to send a third command in response to the second command, and to receive the first command based on the third command. ### Claim 28 (depends on 27) The communication device according to claim 27, wherein the first processing circuitry is further configured to receive from the second processing circuitry a fourth command, the fourth command associating the RF protocol with the predetermined interface level. ### Claim 29 (depends on 28) The communication device according to claim 28, wherein the first processing circuitry is further configured to send a fifth command in response to the first command, the fifth command indicating the predetermined interface level. ### Claim 30 (depends on 29) The communication device according to claim 29, wherein the first processing circuitry is further configured to start and execute an application based on the predetermined interface level, the application being configured to exchange data between the second processing circuitry and the target using the RF protocol. ### Claim 31 (depends on 21) The communication device according to claim 21, wherein the predetermined interface level is selected based on an RF technology used in a communication between the target and the first processing circuitry. ### Claim 32 (depends on 31) The communication device according to claim 31, wherein the first processing circuitry is further configured to transmit a second command and to receive a third command in response to the second command, the third command indicating the RF technology. ### Claim 33 (depends on 32) The communication device according to claim 32, wherein the first processing circuitry is further configured to transmit a fourth command to the second processing circuitry, the fourth command indicating the RF technology. ### Claim 34 (depends on 33) The communication device according to claim 33, wherein the first processing circuitry is further configured to start and execute an application based on the predetermined interface level, the application being configured to exchange data between the first processing circuitry and the target using the RF technology. ### Claim 35 (depends on 31) The communication device according to claim 31, wherein the first processing circuitry is further configured to receive a second command, to send a third command in response to the second command, and to receive the first command based on the third command. ### Claim 36 (depends on 35) The communication device according to claim 35, wherein the first processing circuitry is further configured to send a fourth command in response to the first command, the fourth command indicating the predetermined interface level. ### Claim 37 (depends on 21) The communication device according to claim 21, wherein the first processing circuitry is further configured to receive a second command representing a version of the second processing circuitry, the first processing circuitry is further configured to transmit a third command in response to the second command, the second command representing a version of the first processing circuitry, and, when the version of the second processing circuitry is equivalent or higher than the version of the first processing circuitry, the first circuitry and the second circuitry exchange messages. ### Claim 38 (depends on 37) The communication device according to claim 37, wherein the third command also represents the predetermined interface level, and, when the version of the second processing circuitry is equivalent or higher than the version of the first processing circuitry, the second processing circuitry transmits a fourth command, the fourth command indicating at least one of a poll mode and a listen mode, an RF protocol, and an interface level. ### Claim 39 A communication method, comprising: receiving, at first processing circuitry, a first message; exchanging data between second processing circuitry and a target through the first processing circuitry; selecting, with the first processing circuitry, a predetermined interface level from among a plurality of interface levels based on the first message; and exchanging data between the first processing circuitry and the second processing circuitry based on the predetermined interface level. ### Claim 40 A non-transitory, computer-readable storage medium encoded with computer executable instructions, wherein the instructions, when executed by a communication device, cause the communication device to perform a method comprising: receiving, at first processing circuitry, a first message; exchanging data between second processing circuitry and a target through the first processing circuitry; selecting, with the first processing circuitry, a predetermined interface level from among a plurality of interface levels based on the first message; and exchanging data between the first processing circuitry and the second processing circuitry based on the predetermined interface level.