US 12,218,632 B2
Amplification systems and methods with one or more channels
Tingzhi Yuan, Shanghai (CN); Yaozhang Chen, Shanghai (CN); and Lieyi Fang, Shanghai (CN)
Assigned to On-Bright Electronics (Shanghai) Co., Ltd., Shanghai (CN)
Filed by ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD., Shanghai (CN)
Filed on Oct. 24, 2021, as Appl. No. 17/509,019.
Application 17/509,019 is a continuation of application No. 16/431,014, filed on Jun. 4, 2019, granted, now 11,190,136.
Application 16/431,014 is a continuation of application No. 15/140,367, filed on Apr. 27, 2016, granted, now 10,355,644, issued on Jul. 16, 2019.
Application 15/140,367 is a continuation of application No. 14/504,229, filed on Oct. 1, 2014, granted, now 9,369,096, issued on Jun. 14, 2016.
Application 14/504,229 is a continuation of application No. 14/014,177, filed on Aug. 29, 2013, granted, now 9,054,644, issued on Jun. 9, 2015.
Claims priority of application No. 201310368267.1 (CN), filed on Aug. 21, 2013.
Prior Publication US 2022/0190784 A1, Jun. 16, 2022
Int. Cl. H03F 1/02 (2006.01); H03F 3/185 (2006.01); H03F 3/217 (2006.01); H03F 3/45 (2006.01); H03F 3/68 (2006.01)
CPC H03F 1/0205 (2013.01) [H03F 3/185 (2013.01); H03F 3/217 (2013.01); H03F 3/2171 (2013.01); H03F 3/2173 (2013.01); H03F 3/2175 (2013.01); H03F 3/45071 (2013.01); H03F 3/45475 (2013.01); H03F 3/68 (2013.01); H03F 2200/03 (2013.01); H03F 2200/171 (2013.01); H03F 2200/351 (2013.01); H03F 2200/78 (2013.01); H03F 2203/21106 (2013.01); H03F 2203/21145 (2013.01); H03F 2203/21157 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A system for amplifying one or more input signals to generate one or more output signals, the system comprising:
an oscillator configured to generate a ramp signal associated with a ramping frequency; and
a comparator configured to receive the ramp signal and generate one or more comparison signals based at least in part on the ramp signal;
wherein the oscillator is further configured to:
change the ramping frequency pseudo-randomly so that one or more changes in the ramping frequency are made in a pseudo-random-jittering period corresponding to a pseudo-random-jittering frequency; and
wherein the pseudo-random-jittering frequency is smaller than a lower limit of a predetermined audio frequency range.