$\require{mediawiki-texvc}$

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison, Kafe, Webinar 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

Audio out unit 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H03F-003/04
출원번호 US-0637102 (2009-12-14)
등록번호 US7994864 (2011-07-27)
발명자 / 주소
  • Chen, Hung-I
  • Hsu, Yen-Hsun
  • Wen, Sung-Han
  • Tang, Wei-Cheng
출원인 / 주소
  • Mediatek Inc.
대리인 / 주소
    Thomas|Kayden
인용정보 피인용 횟수 : 80  인용 특허 : 7

초록

A DC-coupled audio out unit is provided, including at least one regulator and at least one audio amplifier. The regulator is coupled to at least one power terminal of the audio amplifier.

대표청구항 ▼

What is claimed is: 1. A DC-coupled audio out unit, comprising:a first regulator for receiving a power source voltage to provide a positive power voltage;a third regulator for receiving the power source voltage to provide an intermediate voltage; anda second regulator for receiving the intermediate

이 특허에 인용된 특허 (7)

  1. Doy,Tony, Integrated direct drive inductor means enabled headphone amplifier.
    상세보기
  2. French, John Barry; May, Charles Robert, Power amplifier with multiple power supplies.
    상세보기
  3. Chen,Fu Yuan; Hsieh,Chung An; Yu,Yueh Ping, Power supply device for driving an amplifier.
    상세보기
  4. Kanaya Masahito (Ota JPX) Suzuki Takeshi (Isesaki JPX) Ueno Masakazu (Ota JPX) Makino Takahisa (Oizumi JPX) Sakuma Yukinao (Kiryu JPX), Power supplying circuit for supplying a voltage to a driving circuit.
    상세보기
  5. Doy,Tony; Koo,Ronald, Single supply direct drive amplifier.
    상세보기
  6. Doy,Tony, Single supply headphone driver/charge pump combination.
    상세보기
  7. Nodar Joseph (Dallas TX) Neale Todd M. (Carrollton TX) Johnson Douglas R. (Cedar Rapids IA), Single supply operational amplifier and charge pump device.
    상세보기

이 특허를 인용한 특허 (80)

  1. Ngo, Christopher Truong; Khlat, Nadim, Apparatuses and methods for rate conversion and fractional delay calculation using a coefficient look up table.
    상세보기
  2. Khlat, Nadim; Ngo, Christopher Truong, Average frequency control of switcher for envelope tracking.
    상세보기
  3. Kay, Michael R.; Khlat, Nadim, Average power tracking controller.
    상세보기
  4. Folkmann, Andrew F.; Khlat, Nadim; Kay, Michael R., Bi-directional power supply signal based linear amplifier.
    상세보기
  5. Khlat, Nadim, Boost charge-pump with fractional ratio and offset loop for supply modulation.
    상세보기
  6. Khlat, Nadim; Colles, Joseph Hubert, Charge-pump system for providing independent voltages.
    상세보기
  7. Gorisse, Philippe, Combined filter and transconductance amplifier.
    상세보기
  8. Khlat, Nadim; Kay, Michael R.; Nag, Manbir Singh, Communications based adjustments of a parallel amplifier power supply.
    상세보기
  9. Khlat, Nadim; Kay, Michael R.; Nag, Manbir Singh, Communications based adjustments of an offset capacitive voltage.
    상세보기
  10. Khlat, Nadim; Kay, Michael R.; Nag, Manbir Singh, Communications based adjustments of an offset capacitive voltage.
    상세보기
  11. Khlat, Nadim; Kay, Michael R.; Nag, Manbir Singh, Communications based adjustments of an offset capacitive voltage.
    상세보기
  12. Khlat, Nadim; Kay, Michael R.; Nag, Manbir Singh, Communications based adjustments of an offset capacitive voltage.
    상세보기
  13. Khlat, Nadim, Differential power management and power amplifier architecture.
    상세보기
  14. Myara, David; Khlat, Nadim; Rafin, Jérémie, Digital fast CORDIC for envelope tracking generation.
    상세보기
  15. Khlat, Nadim; Prasad, Shanthi, Digital fast dB to gain multiplier for envelope tracking systems.
    상세보기
  16. Khlat, Nadim; Scott, Baker; Kay, Michael R., Dual instantaneous envelope tracking.
    상세보기
  17. Khlat, Nadim; Scott, Baker; Kay, Michael R., Dual instantaneous envelope tracking.
    상세보기
  18. Kay, Michael R.; Folkmann, Andrew F.; Khlat, Nadim; Gorisse, Philippe, Dual parallel amplifier based DC-DC converter.
    상세보기
  19. Khlat, Nadim, Dual-mode envelope tracking power converter circuitry.
    상세보기
  20. Khlat, Nadim, Dual-mode envelope tracking power converter circuitry.
    상세보기
  21. Khlat, Nadim; Kay, Michael R., Dual-output asynchronous power converter circuitry.
    상세보기
  22. Folkmann, Andrew F.; Beltran Lizarraga, Ramon Antonio, Dynamic loadline power amplifier with baseband linearization.
    상세보기
  23. Khlat, Nadim, Envelope tracking power converter circuitry.
    상세보기
  24. Khlat, Nadim, Envelope tracking power converter circuitry.
    상세보기
  25. Khlat, Nadim, Envelope tracking power management circuit.
    상세보기
  26. Chiron, Jean-Frederic; Khlat, Nadim, Envelope tracking power supply voltage dynamic range reduction.
    상세보기
  27. Khlat, Nadim; Folkmann, Andrew F.; Retz, James M., Envelope tracking with variable compression.
    상세보기
  28. Rozek, Ashraf; Kay, Michael R., Expanded range DC-DC converter.
    상세보기
  29. Chiron, Jean-Frederic, Fast envelope system calibration.
    상세보기
  30. Khlat, Nadim; Horlander, Karl Francis, Group delay calibration method for power amplifier envelope tracking.
    상세보기
  31. Khlat, Nadim, Group delay calibration of RF envelope tracking.
    상세보기
  32. Wang, Rui; Lin, Jinyan; Zhao, Huijie; Lang, Yunping, High power-supply rejection ratio amplifying circuit.
    상세보기
  33. Khlat, Nadim, High-efficiency power supply for a modulated load.
    상세보기
  34. Khlat, Nadim; Kay, Michael R.; Gorisse, Philippe, Inductance based parallel amplifier phase compensation.
    상세보기
  35. Khlat, Nadim; Gorisse, Philippe, Linear amplifier power supply modulation for envelope tracking.
    상세보기
  36. Hietala, Alexander Wayne; Daughters, Timothy E., Method of power amplifier calibration.
    상세보기
  37. Hietala, Alexander Wayne; Daughters, Timothy E., Method of power amplifier calibration.
    상세보기
  38. Hietala, Alexander Wayne; Khlat, Nadim, Method of power amplifier calibration for an envelope tracking system.
    상세보기
  39. Khlat, Nadim; Kay, Michael R., Modified switching ripple for envelope tracking system.
    상세보기
  40. Khlat, Nadim; Kay, Michael R., Modulated power supply system and method with automatic transition between buck and boost modes.
    상세보기
  41. Khlat, Nadim, Monotonic conversion of RF power amplifier calibration data.
    상세보기
  42. Khlat, Nadim, Multi-mode/multi-band power management system.
    상세보기
  43. Hietala, Alexander Wayne; Ortiz, Jeffery Peter; Halchin, David; Johnson, Jackie; Charles, Wendel, Multimode RF amplifier system.
    상세보기
  44. Kay, Michael R.; Khlat, Nadim, Multiple mode RF power converter.
    상세보기
  45. Kay, Michael R.; Khlat, Nadim, Multiple mode RF power converter.
    상세보기
  46. Khlat, Nadim; Kay, Michael R.; Gorisse, Philippe, Multiple power supply input parallel amplifier based envelope tracking.
    상세보기
  47. Chiron, Jean-Frederic, Noise conversion gain limited RF power amplifier.
    상세보기
  48. Kay, Michael R.; Gorisse, Philippe; Khlat, Nadim; Folkmann, Andrew F.; Nag, Manbir Singh; Chiron, Jean-Frederic, Noise reduction for envelope tracking.
    상세보기
  49. Gorisse, Philippe; Khlat, Nadim; Ngo, Christopher Truong, Open loop ripple cancellation circuit in a DC-DC converter.
    상세보기
  50. Kay, Michael R.; Khlat, Nadim, Output impedance compensation of a pseudo-envelope follower power management system.
    상세보기
  51. Kay, Michael R.; Khlat, Nadim, Output impedance compensation of a pseudo-envelope follower power management system.
    상세보기
  52. Khlat, Nadim; Kay, Michael R., Phase reconfigurable switching power supply.
    상세보기
  53. Khlat, Nadim; Kay, Michael R., Phase reconfigurable switching power supply.
    상세보기
  54. Khlat, Nadim; Kay, Michael R., Phase reconfigurable switching power supply.
    상세보기
  55. Khlat, Nadim; Kay, Michael R., Phase reconfigurable switching power supply.
    상세보기
  56. Khlat, Nadim, Power loop control based envelope tracking.
    상세보기
  57. Khlat, Nadim; Kay, Michael R.; Gorisse, Phillippe; Ngo, Christopher Truong, Power management architecture for modulated and constant supply operation.
    상세보기
  58. Khlat, Nadim, Power management system for multi-carriers transmitter.
    상세보기
  59. Kay, Michael R.; Nag, Manbir Singh; Gorisse, Philippe, Power source multiplexer.
    상세보기
  60. Khlat, Nadim, Programmable RF notch filter for envelope tracking.
    상세보기
  61. Kay, Michael R.; Gorisse, Philippe; Khlat, Nadim, Programmable delay circuitry.
    상세보기
  62. Khlat, Nadim; Kay, Michael R.; Gorisse, Philippe, Pseudo-envelope follower power management system with high frequency ripple current compensation.
    상세보기
  63. Khlat, Nadim; Kay, Michael R.; Gorisse, Philippe, Pseudo-envelope following feedback delay compensation.
    상세보기
  64. Khlat, Nadim; Kay, Michael R., Pseudo-envelope following power management system.
    상세보기
  65. Khlat, Nadim; Kay, Michael R., Pseudo-envelope following power management system.
    상세보기
  66. Khlat, Nadim; Kay, Michael R., Pseudo-envelope following power management system.
    상세보기
  67. Khlat, Nadim; Kay, Michael R., Pseudo-envelope following power management system.
    상세보기
  68. Retz, James M.; Folkmann, Andrew F.; Chiron, Jean-Frederic, Pulsed behavior modeling with steady state average conditions.
    상세보기
  69. Folkmann, Andrew F.; Retz, James M.; Khlat, Nadim; Chiron, Jean-Frederic, Quasi iso-gain supply voltage function for envelope tracking systems.
    상세보기
  70. Khlat, Nadim, RF power converter.
    상세보기
  71. Khlat, Nadim, RF switching converter with ripple correction.
    상세보기
  72. Khlat, Nadim, RF switching converter with ripple correction.
    상세보기
  73. Khlat, Nadim, Reducing effects of RF mixer-based artifact using pre-distortion of an envelope power supply signal.
    상세보기
  74. Chiron, Jean-Frederic, Rugged IQ receiver based RF gain measurements.
    상세보기
  75. Khlat, Nadim; Colles, Joseph Hubert, Single charge-pump buck-boost for providing independent voltages.
    상세보기
  76. Khlat, Nadim, Single μC-buckboost converter with multiple regulated supply outputs.
    상세보기
  77. Khlat, Nadim; Kay, Michael R.; Gorisse, Philippe, Split VCC and common VCC power management architecture for envelope tracking.
    상세보기
  78. Khlat, Nadim; Kay, Michael R.; Adeeb, Mohammad Ahsanul, Transitioning from envelope tracking to average power tracking.
    상세보기
  79. Khlat, Nadim, Using a switching signal delay to reduce noise from a switching power supply.
    상세보기
  80. Kay, Michael R.; Khlat, Nadim, Voltage offset loop for a switching controller.
    상세보기

관련 콘텐츠

섹션별 컨텐츠 바로가기

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

AI-Helper 아이콘
AI-Helper
안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

선택된 텍스트

맨위로