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1. 发明授权

US09786291B2 Communicating information between devices using ultra high frequency audio 有权
公开(公告)号：US09786291B2
公开(公告)日：2017-10-10
申请号：US14307559
申请日：2014-06-18
申请人： Google Technology Holdings LLC
发明人： Shyam Narayan , Naveen Aerrabotu , Sreenivasulu Rayanki , Yun-Ming Wang
IPC分类号： G10L19/00 , G10L19/025 , H04B11/00
CPC分类号： G10L19/025 , H04B11/00
摘要： A client device encodes data into an audio signal and communicates the audio data to an additional client device, which decodes the data from the audio signal. The data is partitioned into characters, which are subsequently partitioned into a plurality of sub-characters. Each sub-character is encoded into a frequency, and multiple frequencies that encode sub-characters are combined by the client device to generate an audio signal. Frequencies encoding sub-characters may be above 16 kilohertz, so the sub-characters are transmitted using frequencies that are inaudible to humans. The audio signal is communicated to an additional client device, which decodes frequencies from the audio signal to sub-characters, which are then combined into characters by the additional client device to generate the data.

2. 发明申请

US20150371650A1 Communicating Information Between Devices Using Ultra High Frequency Audio 有权
标题翻译：使用超高频音频传输设备之间的信息
公开(公告)号：US20150371650A1
公开(公告)日：2015-12-24
申请号：US14307559
申请日：2014-06-18
申请人： Google Technology Holdings LLC
发明人： Shyam Narayan , Naveen Aerrabotu , Sreenivasulu Rayanki , Yun-Ming Wang
IPC分类号： G10L19/025
CPC分类号： G10L19/025 , H04B11/00
摘要： A client device encodes data into an audio signal and communicates the audio data to an additional client device, which decodes the data from the audio signal. The data is partitioned into characters, which are subsequently partitioned into a plurality of sub-characters. Each sub-character is encoded into a frequency, and multiple frequencies that encode sub-characters are combined by the client device to generate an audio signal. Frequencies encoding sub-characters may be above 16 kilohertz, so the sub-characters are transmitted using frequencies that are inaudible to humans. The audio signal is communicated to an additional client device, which decodes frequencies from the audio signal to sub-characters, which are then combined into characters by the additional client device to generate the data.
摘要翻译：客户端设备将数据编码成音频信号，并将音频数据传送到额外的客户端设备，该客户端设备对来自音频信号的数据进行解码。将数据划分成字符，随后将其划分为多个子字符。每个子字符被编码成一个频率，并且编码子字符的多个频率由客户端设备组合以产生音频信号。编码子字符的频率可能高于16千赫兹，因此子字符使用人类听不到的频率进行传输。音频信号被传送到另外的客户端设备，其将频率从音频信号解码为子字符，然后由附加客户端设备将其组合成字符以生成数据。

3. 发明授权

US09794253B2 Device security utilizing continually changing QR codes 有权
公开(公告)号：US09794253B2
公开(公告)日：2017-10-17
申请号：US14712034
申请日：2015-05-14
申请人： GOOGLE TECHNOLOGY HOLDINGS LLC
发明人： Shyam Narayan , Naveen Aerrabotu , Rohit R. Sinha
IPC分类号： G06F21/00 , H04L29/06 , G06F21/44 , G06F21/31 , H04L9/32 , H04W12/04 , H04W12/06 , H04W84/18
CPC分类号： H04L63/0846 , G06F21/31 , G06F21/44 , G06F21/445 , H04L9/3228 , H04L63/068 , H04L63/107 , H04L63/108 , H04W12/04 , H04W12/06 , H04W84/18
摘要： A method provides device access security via use of periodically changing Quick Response (QR) codes. The method includes: generating (706) a first authentication QR code and assigning (708) the generated QR code as the current authentication mechanism for accessing the device. Contemporaneously with the generation of the QR code, at least one QR code validity parameter is established (710) to define when access to the device can be provided to a second device that provides the correct authentication QR code along with the access request. The method includes, in response to a pre-defined trigger (712) of the QR code validity parameter: generating (704) a new authentication QR code, different from a previously generated authentication QR code; assigning (708) the new authentication QR code as the current authentication mechanism for accessing the device; and enabling access to the first device to only second devices that provide the current authentication QR code.

4. 发明申请

US20150244715A1 DEVICE SECURITY UTILIZING CONTINUALLY CHANGING QR CODES 有权
标题翻译：设备安全持续改变QR码
公开(公告)号：US20150244715A1
公开(公告)日：2015-08-27
申请号：US14712034
申请日：2015-05-14
申请人： GOOGLE TECHNOLOGY HOLDINGS LLC
发明人： Shyam Narayan , Naveen Aerrabotu , Rohit R. Sinha
IPC分类号： H04L29/06 , H04W12/06 , H04L29/08
CPC分类号： H04L63/0846 , G06F21/31 , G06F21/44 , G06F21/445 , H04L9/3228 , H04L63/068 , H04L63/107 , H04L63/108 , H04W12/04 , H04W12/06 , H04W84/18
摘要： A method provides device access security via use of periodically changing Quick Response (QR) codes. The method includes: generating (706) a first authentication QR code and assigning (708) the generated QR code as the current authentication mechanism for accessing the device. Contemporaneously with the generation of the QR code, at least one QR code validity parameter is established (710) to define when access to the device can be provided to a second device that provides the correct authentication QR code along with the access request. The method includes, in response to a pre-defined trigger (712) of the QR code validity parameter: generating (704) a new authentication QR code, different from a previously generated authentication QR code; assigning (708) the new authentication QR code as the current authentication mechanism for accessing the device; and enabling access to the first device to only second devices that provide the current authentication QR code.
摘要翻译：一种方法通过使用定期更改的快速响应（QR）代码来提供设备访问安全性。该方法包括：产生（706）第一认证QR码并分配（708）生成的QR码作为用于访问设备的当前认证机制。与QR码的生成同时，建立至少一个QR码有效性参数（710），以定义何时可以将访问设备提供给提供正确的认证QR码以及访问请求的第二设备。该方法包括响应于QR码有效参数的预定义触发（712）：产生（704）不同于先前产生的认证QR码的新认证QR码; 分配（708）新的认证QR码作为用于访问设备的当前认证机制; 并且使得能够访问第一设备到仅提供当前认证QR码的第二设备。

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