Inventor
NAYEBI MEHRDAD
US35 patents
⚠️ This page may combine multiple inventors who share the name “NAYEBI MEHRDAD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
32 patentsUS5675392AOct 7, 1997
Mixer with common-mode noise rejection
SONY CORP124 citations98
US6014176AJan 11, 2000
Automatic phase control apparatus for phase locking the chroma burst of analog and digital video data using a numerically controlled oscillator
SONY CORP140 citations96
US6268756B1Jul 31, 2001
Fast high side switch for hard disk drive preamplifiers
SONY CORP17 citations91
US6175463B1Jan 16, 2001
Architecture for hard disk drive write preamplifiers
SONY CORP30 citations91
US5691663ANov 25, 1997
Single-ended supply preamplifier with high power supply rejection ratio
SONY CORP21 citations90
US6064274AMay 16, 2000
RCB cancellation in high-side low power supply current sources
SONY CORP18 citations83
US6028640AFeb 22, 2000
Current source and threshold voltage generation method and apparatus for HHK video circuit
SONY CORP9 citations74
US5864371AJan 26, 1999
Luminance signal generation circuit with single clamp in closed loop configuration and horizontal synchronization pulse generation
SONY CORP11 citations74
US5784122AJul 21, 1998
Chroma lock detector
SONY CORP12 citations74
US5719532AFeb 17, 1998
Horizontal lock detector
SONY CORP15 citations74
US5686974ANov 11, 1997
Method of and apparatus for providing a high speed video switch
SONY CORP10 citations74
US6191643B1Feb 20, 2001
Voltage boost circuitry for hard drive write preamplifiers
SONY CORP12 citations72
US6188268B1Feb 13, 2001
Low side current sink circuit having improved output impedance to reduce effects of leakage current
SONY CORP8 citations72
US5907367AMay 25, 1999
Video overlay circuit for synchronizing and combining analog and digital signals
SONY CORP8 citations72
US5815212ASep 29, 1998
Video overlay circuit for synchronizing and combining analog and digital signals
SONY CORP12 citations72
US5689309ANov 18, 1997
Control circuit for mixing two video signals
SONY CORP7 citations67
US6141064AOct 31, 2000
Luminance signal generation circuit with single clamp in closed loop configuration
SONY CORP3 citations63
US6043850AMar 28, 2000
Burst gate pulse generator circuit
SONY CORP2 citations63
US6018370AJan 25, 2000
Current source and threshold voltage generation method and apparatus for HHK video circuit
SONY CORP3 citations63
US6008864ADec 28, 1999
Composite video signal backporch soft-clamp system using servo loop
SONY CORP2 citations63
US5999221ADec 7, 1999
Horizontal synchronization pulse generation circuit
SONY CORP2 citations63
US5774188AJun 30, 1998
Black and white video signal detector for detecting the absence of a burst signal from a video signal
SONY CORP4 citations63
US5689308ANov 18, 1997
Vertical reset genereator circuit
SONY CORP4 citations63
US6384638B1May 7, 2002
Differential charge pump for providing a low charge pump current
SONY CORP6 citations61
US6100726AAug 8, 2000
High input impedance buffer circuit having a high-side current source circuit with RCB cancellation
SONY CORP4 citations61
US5774185AJun 30, 1998
Method of and apparatus for removing equalizing pulses without using external pins
SONY CORP3 citations60
US5760635AJun 2, 1998
Apparatus for switching channels within a multi-channel read/write preamplifier circuit
SONY CORP6 citations60
US5926063AJul 20, 1999
Method of and apparatus for selectively engaging an internal trap filter and implementing an external trap filter through a single pin
SONY CORP1 citations52
US5828254AOct 27, 1998
Error regulator circuit for sample and hold phase locked loops
SONY CORP1 citations52
US5812208ASep 22, 1998
Burst separator and slicer circuit
SONY CORP1 citations52
US6304132B1Oct 16, 2001
High side current source circuit having improved output impedance to reduce effects of leakage circuit
SONY CORP1 citations51
US6177825B1Jan 23, 2001
Fast high side switch for hard disk drive preamplifiers
SONY CORP1 citations50