- All sections
- H - Electricity
- H03L - Automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses
- H03L 7/197 - Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
Patent holdings for IPC class H03L 7/197
Total number of patents in this class: 560
10-year publication summary
|
49
|
66
|
56
|
53
|
52
|
41
|
35
|
16
|
12
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 89294 |
39 |
| Texas Instruments Incorporated | 19567 |
24 |
| Intel Corporation | 46597 |
20 |
| Mitsubishi Electric Corporation | 47449 |
18 |
| Skyworks Solutions, Inc. | 3865 |
18 |
| Marvell Asia PTE, Ltd. | 6376 |
15 |
| Samsung Electronics Co., Ltd. | 152304 |
14 |
| Infineon Technologies AG | 8331 |
14 |
| Xilinx, Inc. | 3934 |
13 |
| Apple Inc. | 57432 |
11 |
| Seiko Epson Corporation | 19881 |
10 |
| Mediatek Inc. | 5338 |
10 |
| STMicroelectronics International N.V. | 3673 |
9 |
| Cavium International | 4814 |
9 |
| NPX B.V. | 2684 |
8 |
| Analog Devices, Inc. | 3346 |
8 |
| Silicon Laboratories Inc. | 1163 |
8 |
| Perceptia IP Pty Ltd | 10 |
8 |
| Huawei Technologies Co., Ltd. | 118879 |
7 |
| Ciena Corporation | 2096 |
7 |
| Other owners | 290 |