Average Co-Inventor Count = 2.86
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Sony Corporation (2 from 58,130 patents)
2 patents:
1. 4802174 - Viterbi decoder with detection of synchronous or asynchronous states
2. 4697212 - Method and apparatus for recording a digital information signal